Merge branch 'builderUpdate'

AUTHORS

@@ -3,6 +3,7 @@ Lombok contributors in alphabetical order:
 Christian Sterzl <christian.sterzl@gmail.com>
 DaveLaw <project.lombok@apconsult.de>
 Dawid Rusin <dawidrusin90@gmail.com>
+Enrique da Costa Cambio <enrique.dacostacambio@gmail.com>
 Jappe van der Hel <jappe.vanderhel@gmail.com>
 Luan Nico <luannico27@gmail.com>
 Maarten Mulders <mthmulders@users.noreply.github.com>
@@ -12,6 +13,7 @@ Reinier Zwitserloot <reinier@zwitserloot.com>
 Robbert Jan Grootjans <grootjans@gmail.com>
 Roel Spilker <r.spilker@gmail.com>
 Sander Koning <askoning@gmail.com>
+Szymon Pacanowski <spacanowski@gmail.com>
 Taiki Sugawara <buzz.taiki@gmail.com>
 Yun Zhi Lin <yun@yunspace.com>
 

doc/changelog.markdown

@@ -2,6 +2,9 @@ Lombok Changelog
 ----------------
 
 ### v1.16.7 "Edgy Guinea Pig"
+* FEATURE: `@Builder` updates: It now generates `clearFieldName()` methods if `@Singular` is used. [Issue #967](https://github.com/rzwitserloot/lombok/issues/967).
+* FEATURE: `@Builder` updates: The annotation can now be put on instance methods. [Issue #63](https://github.com/rzwitserloot/lombok/issues/63).
+* FEATURE: `@Builder` updates: `@Singular` now supports guava's ImmutableTable [Issue #937](https://github.com/rzwitserloot/lombok/issues/937).
 * FEATURE: A `lombok.config` key can now be used to make your fields `final` and/or `private`... __everywhere__. We'll be monitoring the performance impact of this for a while. We'll touch every source file if you turn these on, and even if you don't, we have to call into the lombok config system for every file.
 * BUGFIX: `@Value` and `@FieldDefaults` no longer make uninitialized static fields final. [Issue #928](https://github.com/rzwitserloot/lombok/issues/928).
 * BUGFIX: When using delombok, a source file with only `@NonNull` annotations on parameters as lombok feature would not get properly delomboked.  [Issue #950](https://github.com/rzwitserloot/lombok/issues/950).

src/core/lombok/Builder.java

@@ -31,21 +31,21 @@ import java.lang.annotation.Target;
  * The builder annotation creates a so-called 'builder' aspect to the class that is annotated or the class
  * that contains a member which is annotated with {@code @Builder}.
  * <p>
- * If a member is annotated, it must be either a constructor or a static method. If a class is annotated,
+ * If a member is annotated, it must be either a constructor or a method. If a class is annotated,
  * then a private constructor is generated with all fields as arguments
  * (as if {@code @AllArgsConstructor(AccessLevel.PRIVATE)} is present
  * on the class), and it is as if this constructor has been annotated with {@code @Builder} instead.
  * <p>
  * The effect of {@code @Builder} is that an inner class is generated named <code><strong>T</strong>Builder</code>,
- * with a private constructor. Instances of <code><strong>T</strong>Builder</code> are made with the static
+ * with a private constructor. Instances of <code><strong>T</strong>Builder</code> are made with the
  * method named {@code builder()} which is also generated for you in the class itself (not in the builder class).
  * <p>
  * The <code><strong>T</strong>Builder</code> class contains 1 method for each parameter of the annotated
- * constructor / static method (each field, when annotating a class), which returns the builder itself.
+ * constructor / method (each field, when annotating a class), which returns the builder itself.
  * The builder also has a <code>build()</code> method which returns a completed instance of the original type,
  * created by passing all parameters as set via the various other methods in the builder to the constructor
- * or static method that was annotated with {@code @Builder}. The return type of this method will be the same
- * as the relevant class, unless a static method has been annotated, in which case it'll be equal to the
+ * or method that was annotated with {@code @Builder}. The return type of this method will be the same
+ * as the relevant class, unless a method has been annotated, in which case it'll be equal to the
  * return type of that method.
  * <p>
  * Complete documentation is found at <a href="https://projectlombok.org/features/experimental/Builder.html">the project lombok features page for &#64;Builder</a>.
@@ -107,10 +107,10 @@ import java.lang.annotation.Target;
 @Target({TYPE, METHOD, CONSTRUCTOR})
 @Retention(SOURCE)
 public @interface Builder {
-	/** Name of the static method that creates a new builder instance. Default: {@code builder}. */
+	/** Name of the method that creates a new builder instance. Default: {@code builder}. */
 	String builderMethodName() default "builder";
 	
-	/** Name of the instance method in the builder class that creates an instance of your {@code @Builder}-annotated class. */
+	/** Name of the method in the builder class that creates an instance of your {@code @Builder}-annotated class. */
 	String buildMethodName() default "build";
 	
 	/**
@@ -118,7 +118,7 @@ public @interface Builder {
 	 * 
 	 * Default for {@code @Builder} on types and constructors: {@code (TypeName)Builder}.
 	 * <p>
-	 * Default for {@code @Builder} on static methods: {@code (ReturnTypeName)Builder}.
+	 * Default for {@code @Builder} on methods: {@code (ReturnTypeName)Builder}.
 	 */
 	String builderClassName() default "";
 	

src/core/lombok/core/GuavaTypeMap.java

@@ -45,6 +45,7 @@ public final class GuavaTypeMap {
 		m.put("com.google.common.collect.ImmutableSortedMap", "ImmutableSortedMap");
 		m.put("com.google.common.collect.ImmutableList", "ImmutableList");
 		m.put("com.google.common.collect.ImmutableCollection", "ImmutableList");
+		m.put("com.google.common.collect.ImmutableTable", "ImmutableTable");
 		
 		TYPE_TO_GUAVA_TYPE = Collections.unmodifiableMap(m);
 	}

src/core/lombok/eclipse/handlers/HandleBuilder.java

@@ -49,6 +49,7 @@ import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
 import org.eclipse.jdt.internal.compiler.ast.OperatorIds;
 import org.eclipse.jdt.internal.compiler.ast.ParameterizedQualifiedTypeReference;
 import org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference;
+import org.eclipse.jdt.internal.compiler.ast.QualifiedThisReference;
 import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
 import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
 import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
@@ -163,6 +164,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		
 		EclipseNode fillParametersFrom = parent.get() instanceof AbstractMethodDeclaration ? parent : null;
 		boolean addCleaning = false;
+		boolean isStatic = true;
 		
 		if (parent.get() instanceof TypeDeclaration) {
 			tdParent = parent;
@@ -212,11 +214,8 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		} else if (parent.get() instanceof MethodDeclaration) {
 			MethodDeclaration md = (MethodDeclaration) parent.get();
 			tdParent = parent.up();
-			if (!md.isStatic()) {
-				annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
-				return;
-			}
-			
+			isStatic = md.isStatic();
+
 			if (toBuilder) {
 				final String TO_BUILDER_NOT_SUPPORTED = "@Builder(toBuilder=true) is only supported if you return your own type.";
 				char[] token;
@@ -322,7 +321,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				builderClassName = new String(token) + "Builder";
 			}
 		} else {
-			annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
+			annotationNode.addError("@Builder is only supported on types, constructors, and methods.");
 			return;
 		}
 		
@@ -342,8 +341,16 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		
 		EclipseNode builderType = findInnerClass(tdParent, builderClassName);
 		if (builderType == null) {
-			builderType = makeBuilderClass(tdParent, builderClassName, typeParams, ast);
+			builderType = makeBuilderClass(isStatic, tdParent, builderClassName, typeParams, ast);
 		} else {
+			TypeDeclaration builderTypeDeclaration = (TypeDeclaration) builderType.get();
+			if (isStatic && (builderTypeDeclaration.modifiers & ClassFileConstants.AccStatic) == 0) {
+				annotationNode.addError("Existing Builder must be a static inner class.");
+				return;
+			} else if (!isStatic && (builderTypeDeclaration.modifiers & ClassFileConstants.AccStatic) != 0) {
+				annotationNode.addError("Existing Builder must be a non-static inner class.");
+				return;
+			}
 			sanityCheckForMethodGeneratingAnnotationsOnBuilderClass(builderType, annotationNode);
 			/* generate errors for @Singular BFDs that have one already defined node. */ {
 				for (BuilderFieldData bfd : builderFields) {
@@ -398,7 +405,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		}
 		
 		if (methodExists(buildMethodName, builderType, -1) == MemberExistsResult.NOT_EXISTS) {
-			MethodDeclaration md = generateBuildMethod(buildMethodName, nameOfStaticBuilderMethod, returnType, builderFields, builderType, thrownExceptions, addCleaning, ast);
+			MethodDeclaration md = generateBuildMethod(isStatic, buildMethodName, nameOfStaticBuilderMethod, returnType, builderFields, builderType, thrownExceptions, addCleaning, ast);
 			if (md != null) injectMethod(builderType, md);
 		}
 		
@@ -417,7 +424,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		}
 		
 		if (methodExists(builderMethodName, tdParent, -1) == MemberExistsResult.NOT_EXISTS) {
-			MethodDeclaration md = generateBuilderMethod(builderMethodName, builderClassName, tdParent, typeParams, ast);
+			MethodDeclaration md = generateBuilderMethod(isStatic, builderMethodName, builderClassName, tdParent, typeParams, ast);
 			if (md != null) injectMethod(tdParent, md);
 		}
 		
@@ -507,7 +514,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		return decl;
 	}
 	
-	public MethodDeclaration generateBuildMethod(String name, char[] staticName, TypeReference returnType, List<BuilderFieldData> builderFields, EclipseNode type, TypeReference[] thrownExceptions, boolean addCleaning, ASTNode source) {
+	public MethodDeclaration generateBuildMethod(boolean isStatic, String name, char[] staticName, TypeReference returnType, List<BuilderFieldData> builderFields, EclipseNode type, TypeReference[] thrownExceptions, boolean addCleaning, ASTNode source) {
 		MethodDeclaration out = new MethodDeclaration(((CompilationUnitDeclaration) type.top().get()).compilationResult);
 		out.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
 		List<Statement> statements = new ArrayList<Statement>();
@@ -552,7 +559,10 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		} else {
 			MessageSend invoke = new MessageSend();
 			invoke.selector = staticName;
-			invoke.receiver = new SingleNameReference(type.up().getName().toCharArray(), 0);
+			if (isStatic)
+				invoke.receiver = new SingleNameReference(type.up().getName().toCharArray(), 0);
+			else
+				invoke.receiver = new QualifiedThisReference(new SingleTypeReference(type.up().getName().toCharArray(), 0) , 0, 0);
 			TypeParameter[] tps = ((TypeDeclaration) type.get()).typeParameters;
 			if (tps != null) {
 				TypeReference[] trs = new TypeReference[tps.length];
@@ -573,13 +583,14 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		return out;
 	}
 	
-	public MethodDeclaration generateBuilderMethod(String builderMethodName, String builderClassName, EclipseNode type, TypeParameter[] typeParams, ASTNode source) {
+	public MethodDeclaration generateBuilderMethod(boolean isStatic, String builderMethodName, String builderClassName, EclipseNode type, TypeParameter[] typeParams, ASTNode source) {
 		int pS = source.sourceStart, pE = source.sourceEnd;
 		long p = (long) pS << 32 | pE;
 		
 		MethodDeclaration out = new MethodDeclaration(((CompilationUnitDeclaration) type.top().get()).compilationResult);
 		out.selector = builderMethodName.toCharArray();
-		out.modifiers = ClassFileConstants.AccPublic | ClassFileConstants.AccStatic;
+		out.modifiers = ClassFileConstants.AccPublic;
+		if (isStatic) out.modifiers |= ClassFileConstants.AccStatic;
 		out.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
 		out.returnType = namePlusTypeParamsToTypeReference(builderClassName.toCharArray(), typeParams, p);
 		out.typeParameters = copyTypeParams(typeParams, source);
@@ -661,11 +672,12 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		return null;
 	}
 	
-	public EclipseNode makeBuilderClass(EclipseNode tdParent, String builderClassName, TypeParameter[] typeParams, ASTNode source) {
+	public EclipseNode makeBuilderClass(boolean isStatic, EclipseNode tdParent, String builderClassName, TypeParameter[] typeParams, ASTNode source) {
 		TypeDeclaration parent = (TypeDeclaration) tdParent.get();
 		TypeDeclaration builder = new TypeDeclaration(parent.compilationResult);
 		builder.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
-		builder.modifiers |= ClassFileConstants.AccPublic | ClassFileConstants.AccStatic;
+		builder.modifiers |= ClassFileConstants.AccPublic;
+		if (isStatic) builder.modifiers |= ClassFileConstants.AccStatic;
 		builder.typeParameters = copyTypeParams(typeParams, source);
 		builder.name = builderClassName.toCharArray();
 		builder.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);

src/core/lombok/eclipse/handlers/singulars/EclipseGuavaMapSingularizer.java

@@ -32,14 +32,27 @@ public class EclipseGuavaMapSingularizer extends EclipseGuavaSingularizer {
 	// TODO cgcc.ImmutableClassToInstanceMap
 	// TODO cgcc.ImmutableRangeMap
 	
+	private static final LombokImmutableList<String> SUFFIXES =
+		LombokImmutableList.of("key", "value");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES = LombokImmutableList.of(
+		"com.google.common.collect.ImmutableMap", 
+		"com.google.common.collect.ImmutableBiMap", 
+		"com.google.common.collect.ImmutableSortedMap"
+	);
+	
 	@Override public LombokImmutableList<String> getSupportedTypes() {
-		return LombokImmutableList.of(
-				"com.google.common.collect.ImmutableMap", 
-				"com.google.common.collect.ImmutableBiMap", 
-				"com.google.common.collect.ImmutableSortedMap");
+		return SUPPORTED_TYPES;
 	}
 	
-	@Override protected boolean isMap() {
-		return true;
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "put";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "java.util.Map";
 	}
 }

src/core/lombok/eclipse/handlers/singulars/EclipseGuavaSetListSingularizer.java

@@ -28,18 +28,29 @@ import lombok.eclipse.handlers.EclipseSingularsRecipes.EclipseSingularizer;
 
 @ProviderFor(EclipseSingularizer.class)
 public class EclipseGuavaSetListSingularizer extends EclipseGuavaSingularizer {
-	// TODO com.google.common.collect.ImmutableTable
 	// TODO com.google.common.collect.ImmutableRangeSet
 	// TODO com.google.common.collect.ImmutableMultiset and com.google.common.collect.ImmutableSortedMultiset
+	private static final LombokImmutableList<String> SUFFIXES = LombokImmutableList.of("");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES = LombokImmutableList.of(
+		"com.google.common.collect.ImmutableCollection", 
+		"com.google.common.collect.ImmutableList", 
+		"com.google.common.collect.ImmutableSet", 
+		"com.google.common.collect.ImmutableSortedSet"
+	);
+	
 	@Override public LombokImmutableList<String> getSupportedTypes() {
-		return LombokImmutableList.of(
-				"com.google.common.collect.ImmutableCollection", 
-				"com.google.common.collect.ImmutableList", 
-				"com.google.common.collect.ImmutableSet", 
-				"com.google.common.collect.ImmutableSortedSet");
+		return SUPPORTED_TYPES;
 	}
-
-	@Override protected boolean isMap() {
-		return false;
+	
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "add";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "java.lang.Iterable";
 	}
 }

src/core/lombok/eclipse/handlers/singulars/EclipseGuavaSingularizer.java

@@ -29,6 +29,7 @@ import java.util.Collections;
 import java.util.List;
 
 import lombok.core.GuavaTypeMap;
+import lombok.core.LombokImmutableList;
 import lombok.core.handlers.HandlerUtil;
 import lombok.eclipse.EclipseNode;
 import lombok.eclipse.handlers.EclipseSingularsRecipes.EclipseSingularizer;
@@ -56,14 +57,9 @@ import org.eclipse.jdt.internal.compiler.ast.Statement;
 import org.eclipse.jdt.internal.compiler.ast.ThisReference;
 import org.eclipse.jdt.internal.compiler.ast.TypeReference;
 import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
-import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
 import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
 
 abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
-	protected static final char[][] JAVA_UTIL_MAP = {
-		{'j', 'a', 'v', 'a'}, {'u', 't', 'i', 'l'}, {'M', 'a', 'p'}
-	};
-	
 	protected String getSimpleTargetTypeName(SingularData data) {
 		return GuavaTypeMap.getGuavaTypeName(data.getTargetFqn());
 	}
@@ -74,8 +70,6 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 		return "builder".toCharArray();
 	}
 	
-	protected abstract boolean isMap();
-	
 	protected char[][] makeGuavaTypeName(String simpleName, boolean addBuilder) {
 		char[][] tokenizedName = new char[addBuilder ? 6 : 5][];
 		tokenizedName[0] = new char[] {'c', 'o', 'm'};
@@ -88,9 +82,10 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 	}
 	
 	@Override public List<EclipseNode> generateFields(SingularData data, EclipseNode builderType) {
-		char[][] tokenizedName = makeGuavaTypeName(getSimpleTargetTypeName(data), true);
+		String simpleTypeName = getSimpleTargetTypeName(data);
+		char[][] tokenizedName = makeGuavaTypeName(simpleTypeName, true);
 		TypeReference type = new QualifiedTypeReference(tokenizedName, NULL_POSS);
-		type = addTypeArgs(isMap() ? 2 : 1, false, builderType, type, data.getTypeArgs());
+		type = addTypeArgs(getTypeArgumentsCount(), false, builderType, type, data.getTypeArgs());
 		
 		FieldDeclaration buildField = new FieldDeclaration(data.getPluralName(), 0, -1);
 		buildField.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
@@ -109,12 +104,34 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
 		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
 		generatePluralMethod(returnType, returnStatement, data, builderType, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
+		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
+		generateClearMethod(returnType, returnStatement, data,  builderType);
+	}
+	
+	void generateClearMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType) {
+		MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
+		md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
+		md.modifiers = ClassFileConstants.AccPublic;
+		
+		FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
+		thisDotField.receiver = new ThisReference(0, 0);
+		Assignment a = new Assignment(thisDotField, new NullLiteral(0, 0), 0);
+		md.selector = HandlerUtil.buildAccessorName("clear", new String(data.getPluralName())).toCharArray();
+		md.statements = returnStatement != null ? new Statement[] {a, returnStatement} : new Statement[] {a};
+		md.returnType = returnType;
+		injectMethod(builderType, md);
 	}
 	
 	void generateSingularMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {
-		boolean mapMode = isMap();
-		char[] keyName = !mapMode ? data.getSingularName() : (new String(data.getSingularName()) + "$key").toCharArray();
-		char[] valueName = !mapMode ? null : (new String(data.getSingularName()) + "$value").toCharArray();
+		LombokImmutableList<String> suffixes = getArgumentSuffixes();
+		char[][] names = new char[suffixes.size()][];
+		for (int i = 0; i < suffixes.size(); i++) {
+			String s = suffixes.get(i);
+			char[] n = data.getSingularName();
+			names[i] = s.isEmpty() ? n : s.toCharArray();
+		}
 		
 		MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
 		md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
@@ -126,40 +143,28 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 		FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
 		thisDotField.receiver = new ThisReference(0, 0);
 		MessageSend thisDotFieldDotAdd = new MessageSend();
-		if (mapMode) {
-			thisDotFieldDotAdd.arguments = new Expression[] {
-					new SingleNameReference(keyName, 0L),
-					new SingleNameReference(valueName, 0L)};
-		} else {
-			thisDotFieldDotAdd.arguments = new Expression[] {new SingleNameReference(keyName, 0L)};
+		thisDotFieldDotAdd.arguments = new Expression[suffixes.size()];
+		for (int i = 0; i < suffixes.size(); i++) {
+			thisDotFieldDotAdd.arguments[i] = new SingleNameReference(names[i], 0L);
 		}
 		thisDotFieldDotAdd.receiver = thisDotField;
-		thisDotFieldDotAdd.selector = (mapMode ? "put" : "add").toCharArray();
+		thisDotFieldDotAdd.selector = getAddMethodName().toCharArray();
 		statements.add(thisDotFieldDotAdd);
 		if (returnStatement != null) statements.add(returnStatement);
 		md.statements = statements.toArray(new Statement[statements.size()]);
-		
-		if (mapMode) {
-			TypeReference keyType = cloneParamType(0, data.getTypeArgs(), builderType);
-			Argument keyParam = new Argument(keyName, 0, keyType, 0);
-			TypeReference valueType = cloneParamType(1, data.getTypeArgs(), builderType);
-			Argument valueParam = new Argument(valueName, 0, valueType, 0);
-			md.arguments = new Argument[] {keyParam, valueParam};
-		} else {
-			TypeReference paramType = cloneParamType(0, data.getTypeArgs(), builderType);
-			Argument param = new Argument(keyName, 0, paramType, 0);
-			md.arguments = new Argument[] {param};
+		md.arguments = new Argument[suffixes.size()];
+		for (int i = 0; i < suffixes.size(); i++) {
+			TypeReference tr = cloneParamType(i, data.getTypeArgs(), builderType);
+			md.arguments[i] = new Argument(names[i], 0, tr, 0);
 		}
 		md.returnType = returnType;
-		md.selector = fluent ? data.getSingularName() : HandlerUtil.buildAccessorName(mapMode ? "put" : "add", new String(data.getSingularName())).toCharArray();
+		md.selector = fluent ? data.getSingularName() : HandlerUtil.buildAccessorName(getAddMethodName(), new String(data.getSingularName())).toCharArray();
 		
 		data.setGeneratedByRecursive(md);
 		injectMethod(builderType, md);
 	}
 	
 	void generatePluralMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {
-		boolean mapMode = isMap();
-		
 		MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
 		md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
 		md.modifiers = ClassFileConstants.AccPublic;
@@ -172,40 +177,36 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 		MessageSend thisDotFieldDotAddAll = new MessageSend();
 		thisDotFieldDotAddAll.arguments = new Expression[] {new SingleNameReference(data.getPluralName(), 0L)};
 		thisDotFieldDotAddAll.receiver = thisDotField;
-		thisDotFieldDotAddAll.selector = (mapMode ? "putAll" : "addAll").toCharArray();
+		thisDotFieldDotAddAll.selector = (getAddMethodName() + "All").toCharArray();
 		statements.add(thisDotFieldDotAddAll);
 		if (returnStatement != null) statements.add(returnStatement);
 		
 		md.statements = statements.toArray(new Statement[statements.size()]);
 		
 		TypeReference paramType;
-		if (mapMode) {
-			paramType = new QualifiedTypeReference(JAVA_UTIL_MAP, NULL_POSS);
-			paramType = addTypeArgs(2, true, builderType, paramType, data.getTypeArgs());
-		} else {
-			paramType = new QualifiedTypeReference(TypeConstants.JAVA_LANG_ITERABLE, NULL_POSS);
-			paramType = addTypeArgs(1, true, builderType, paramType, data.getTypeArgs());
-		}
+		paramType = new QualifiedTypeReference(fromQualifiedName(getAddAllTypeName()), NULL_POSS);
+		paramType = addTypeArgs(getTypeArgumentsCount(), true, builderType, paramType, data.getTypeArgs());
 		Argument param = new Argument(data.getPluralName(), 0, paramType, 0);
 		md.arguments = new Argument[] {param};
 		md.returnType = returnType;
-		md.selector = fluent ? data.getPluralName() : HandlerUtil.buildAccessorName(mapMode ? "putAll" : "addAll", new String(data.getPluralName())).toCharArray();
+		md.selector = fluent ? data.getPluralName() : HandlerUtil.buildAccessorName(getAddMethodName() + "All", new String(data.getPluralName())).toCharArray();
 		
 		data.setGeneratedByRecursive(md);
 		injectMethod(builderType, md);
 	}
 	
 	@Override public void appendBuildCode(SingularData data, EclipseNode builderType, List<Statement> statements, char[] targetVariableName) {
-		boolean mapMode = isMap();
 		TypeReference varType = new QualifiedTypeReference(fromQualifiedName(data.getTargetFqn()), NULL_POSS);
-		varType = addTypeArgs(mapMode ? 2 : 1, false, builderType, varType, data.getTypeArgs());
+		String simpleTypeName = getSimpleTargetTypeName(data);
+		int agrumentsCount = getTypeArgumentsCount();
+		varType = addTypeArgs(agrumentsCount, false, builderType, varType, data.getTypeArgs());
 		
 		MessageSend emptyInvoke; {
 			//ImmutableX.of()
 			emptyInvoke = new MessageSend();
 			emptyInvoke.selector = new char[] {'o', 'f'};
-			emptyInvoke.receiver = new QualifiedNameReference(makeGuavaTypeName(getSimpleTargetTypeName(data), false), NULL_POSS, 0, 0);
-			emptyInvoke.typeArguments = createTypeArgs(mapMode ? 2 : 1, false, builderType, data.getTypeArgs());
+			emptyInvoke.receiver = new QualifiedNameReference(makeGuavaTypeName(simpleTypeName, false), NULL_POSS, 0, 0);
+			emptyInvoke.typeArguments = createTypeArgs(agrumentsCount, false, builderType, data.getTypeArgs());
 		}
 		
 		MessageSend invokeBuild; {
@@ -244,4 +245,12 @@ abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
 		createBuilderInvoke.selector = getBuilderMethodName(data);
 		return new IfStatement(cond, new Assignment(thisDotField2, createBuilderInvoke, 0), 0, 0);
 	}
+	
+	protected abstract LombokImmutableList<String> getArgumentSuffixes();
+	protected abstract String getAddMethodName();
+	protected abstract String getAddAllTypeName();
+	
+	protected int getTypeArgumentsCount() {
+		return getArgumentSuffixes().size();
+	}
 }

src/core/lombok/eclipse/handlers/singulars/EclipseGuavaTableSingularizer.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2015 The Project Lombok Authors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.eclipse.handlers.singulars;
+
+import org.mangosdk.spi.ProviderFor;
+
+import lombok.core.LombokImmutableList;
+import lombok.eclipse.handlers.EclipseSingularsRecipes.EclipseSingularizer;
+
+@ProviderFor(EclipseSingularizer.class)
+public class EclipseGuavaTableSingularizer extends EclipseGuavaSingularizer {
+	private static final LombokImmutableList<String> SUFFIXES =
+		LombokImmutableList.of("rowKey", "columnKey", "value");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES =
+		LombokImmutableList.of("com.google.common.collect.ImmutableTable");
+	
+	@Override public LombokImmutableList<String> getSupportedTypes() {
+		return SUPPORTED_TYPES;
+	}
+	
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "put";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "com.google.common.collect.Table";
+	}
+}

src/core/lombok/eclipse/handlers/singulars/EclipseJavaUtilListSetSingularizer.java

@@ -34,11 +34,15 @@ import lombok.eclipse.handlers.EclipseSingularsRecipes.SingularData;
 
 import org.eclipse.jdt.internal.compiler.ast.Argument;
 import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.EqualExpression;
 import org.eclipse.jdt.internal.compiler.ast.Expression;
 import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
 import org.eclipse.jdt.internal.compiler.ast.FieldReference;
+import org.eclipse.jdt.internal.compiler.ast.IfStatement;
 import org.eclipse.jdt.internal.compiler.ast.MessageSend;
 import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.NullLiteral;
+import org.eclipse.jdt.internal.compiler.ast.OperatorIds;
 import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
 import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
 import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
@@ -96,6 +100,29 @@ abstract class EclipseJavaUtilListSetSingularizer extends EclipseJavaUtilSingula
 		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
 		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
 		generatePluralMethod(returnType, returnStatement, data, builderType, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
+		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
+		generateClearMethod(returnType, returnStatement, data, builderType);
+	}
+	
+	private void generateClearMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType) {
+		MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
+		md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
+		md.modifiers = ClassFileConstants.AccPublic;
+		
+		FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
+		thisDotField.receiver = new ThisReference(0, 0);
+		FieldReference thisDotField2 = new FieldReference(data.getPluralName(), 0L);
+		thisDotField2.receiver = new ThisReference(0, 0);
+		md.selector = HandlerUtil.buildAccessorName("clear", new String(data.getPluralName())).toCharArray();
+		MessageSend clearMsg = new MessageSend();
+		clearMsg.receiver = thisDotField2;
+		clearMsg.selector = "clear".toCharArray();
+		Statement clearStatement = new IfStatement(new EqualExpression(thisDotField, new NullLiteral(0, 0), OperatorIds.NOT_EQUAL), clearMsg, 0, 0);
+		md.statements = returnStatement != null ? new Statement[] {clearStatement, returnStatement} : new Statement[] {clearStatement};
+		md.returnType = returnType;
+		injectMethod(builderType, md);
 	}
 	
 	void generateSingularMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {

src/core/lombok/eclipse/handlers/singulars/EclipseJavaUtilMapSingularizer.java

@@ -32,13 +32,17 @@ import java.util.List;
 import org.eclipse.jdt.internal.compiler.ast.Argument;
 import org.eclipse.jdt.internal.compiler.ast.Block;
 import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.EqualExpression;
 import org.eclipse.jdt.internal.compiler.ast.Expression;
 import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
 import org.eclipse.jdt.internal.compiler.ast.FieldReference;
 import org.eclipse.jdt.internal.compiler.ast.ForeachStatement;
+import org.eclipse.jdt.internal.compiler.ast.IfStatement;
 import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
 import org.eclipse.jdt.internal.compiler.ast.MessageSend;
 import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.NullLiteral;
+import org.eclipse.jdt.internal.compiler.ast.OperatorIds;
 import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
 import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
 import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
@@ -141,6 +145,40 @@ public class EclipseJavaUtilMapSingularizer extends EclipseJavaUtilSingularizer
 		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
 		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
 		generatePluralMethod(returnType, returnStatement, data, builderType, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
+		returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
+		generateClearMethod(returnType, returnStatement, data, builderType);
+	}
+	
+	private void generateClearMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType) {
+		MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
+		md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
+		md.modifiers = ClassFileConstants.AccPublic;
+		
+		String pN = new String(data.getPluralName());
+		char[] keyFieldName = (pN + "$key").toCharArray();
+		char[] valueFieldName = (pN + "$value").toCharArray();
+		
+		FieldReference thisDotField = new FieldReference(keyFieldName, 0L);
+		thisDotField.receiver = new ThisReference(0, 0);
+		FieldReference thisDotField2 = new FieldReference(keyFieldName, 0L);
+		thisDotField2.receiver = new ThisReference(0, 0);
+		FieldReference thisDotField3 = new FieldReference(valueFieldName, 0L);
+		thisDotField3.receiver = new ThisReference(0, 0);
+		md.selector = HandlerUtil.buildAccessorName("clear", new String(data.getPluralName())).toCharArray();
+		MessageSend clearMsg1 = new MessageSend();
+		clearMsg1.receiver = thisDotField2;
+		clearMsg1.selector = "clear".toCharArray();
+		MessageSend clearMsg2 = new MessageSend();
+		clearMsg2.receiver = thisDotField3;
+		clearMsg2.selector = "clear".toCharArray();
+		Block clearMsgs = new Block(2);
+		clearMsgs.statements = new Statement[] {clearMsg1, clearMsg2};
+		Statement clearStatement = new IfStatement(new EqualExpression(thisDotField, new NullLiteral(0, 0), OperatorIds.NOT_EQUAL), clearMsgs, 0, 0);
+		md.statements = returnStatement != null ? new Statement[] {clearStatement, returnStatement} : new Statement[] {clearStatement};
+		md.returnType = returnType;
+		injectMethod(builderType, md);
 	}
 	
 	private void generateSingularMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {

src/core/lombok/experimental/Builder.java

@@ -31,21 +31,21 @@ import java.lang.annotation.Target;
  * The builder annotation creates a so-called 'builder' aspect to the class that is annotated or the class
  * that contains a member which is annotated with {@code @Builder}.
  * <p>
- * If a member is annotated, it must be either a constructor or a static method. If a class is annotated,
+ * If a member is annotated, it must be either a constructor or a method. If a class is annotated,
  * then a private constructor is generated with all fields as arguments
  * (as if {@code @AllArgsConstructor(AccessLevel.PRIVATE)} is present
  * on the class), and it is as if this constructor has been annotated with {@code @Builder} instead.
  * <p>
  * The effect of {@code @Builder} is that an inner class is generated named <code><strong>T</strong>Builder</code>,
- * with a private constructor. Instances of <code><strong>T</strong>Builder</code> are made with the static
+ * with a private constructor. Instances of <code><strong>T</strong>Builder</code> are made with the
  * method named {@code builder()} which is also generated for you in the class itself (not in the builder class).
  * <p>
  * The <code><strong>T</strong>Builder</code> class contains 1 method for each parameter of the annotated
- * constructor / static method (each field, when annotating a class), which returns the builder itself.
+ * constructor / method (each field, when annotating a class), which returns the builder itself.
  * The builder also has a <code>build()</code> method which returns a completed instance of the original type,
  * created by passing all parameters as set via the various other methods in the builder to the constructor
- * or static method that was annotated with {@code @Builder}. The return type of this method will be the same
- * as the relevant class, unless a static method has been annotated, in which case it'll be equal to the
+ * or method that was annotated with {@code @Builder}. The return type of this method will be the same
+ * as the relevant class, unless a method has been annotated, in which case it'll be equal to the
  * return type of that method.
  * <p>
  * Complete documentation is found at <a href="https://projectlombok.org/features/experimental/Builder.html">the project lombok features page for &#64;Builder</a>.
@@ -110,15 +110,15 @@ import java.lang.annotation.Target;
 @Retention(SOURCE)
 @Deprecated
 public @interface Builder {
-	/** Name of the static method that creates a new builder instance. Default: {@code builder}. */
+	/** Name of the method that creates a new builder instance. Default: {@code builder}. */
 	String builderMethodName() default "builder";
 	
-	/** Name of the instance method in the builder class that creates an instance of your {@code @Builder}-annotated class. */
+	/** Name of the method in the builder class that creates an instance of your {@code @Builder}-annotated class. */
 	String buildMethodName() default "build";
 	
 	/** Name of the builder class.
 	 * Default for {@code @Builder} on types and constructors: {@code (TypeName)Builder}.
-	 * Default for {@code @Builder} on static methods: {@code (ReturnTypeName)Builder}.
+	 * Default for {@code @Builder} on methods: {@code (ReturnTypeName)Builder}.
 	 */
 	String builderClassName() default "";
 	

src/core/lombok/javac/handlers/HandleBuilder.java

@@ -24,6 +24,8 @@ package lombok.javac.handlers;
 import java.lang.annotation.Annotation;
 import java.util.ArrayList;
 
+import javax.lang.model.element.Modifier;
+
 import org.mangosdk.spi.ProviderFor;
 
 import com.sun.tools.javac.code.Flags;
@@ -124,11 +126,12 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		JCExpression returnType;
 		List<JCTypeParameter> typeParams = List.nil();
 		List<JCExpression> thrownExceptions = List.nil();
-		Name nameOfStaticBuilderMethod;
+		Name nameOfBuilderMethod;
 		JavacNode tdParent;
 		
 		JavacNode fillParametersFrom = parent.get() instanceof JCMethodDecl ? parent : null;
 		boolean addCleaning = false;
+		boolean isStatic = true;
 		
 		if (parent.get() instanceof JCClassDecl) {
 			tdParent = parent;
@@ -157,7 +160,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 			returnType = namePlusTypeParamsToTypeReference(tdParent.getTreeMaker(), td.name, td.typarams);
 			typeParams = td.typarams;
 			thrownExceptions = List.nil();
-			nameOfStaticBuilderMethod = null;
+			nameOfBuilderMethod = null;
 			if (builderClassName.isEmpty()) builderClassName = td.name.toString() + "Builder";
 		} else if (fillParametersFrom != null && fillParametersFrom.getName().toString().equals("<init>")) {
 			JCMethodDecl jmd = (JCMethodDecl) fillParametersFrom.get();
@@ -171,21 +174,18 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 			returnType = namePlusTypeParamsToTypeReference(tdParent.getTreeMaker(), td.name, td.typarams);
 			typeParams = td.typarams;
 			thrownExceptions = jmd.thrown;
-			nameOfStaticBuilderMethod = null;
+			nameOfBuilderMethod = null;
 			if (builderClassName.isEmpty()) builderClassName = td.name.toString() + "Builder";
 		} else if (fillParametersFrom != null) {
 			tdParent = parent.up();
 			JCClassDecl td = (JCClassDecl) tdParent.get();
 			JCMethodDecl jmd = (JCMethodDecl) fillParametersFrom.get();
-			if ((jmd.mods.flags & Flags.STATIC) == 0) {
-				annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
-				return;
-			}
+			isStatic = (jmd.mods.flags & Flags.STATIC) != 0;
 			JCExpression fullReturnType = jmd.restype;
 			returnType = fullReturnType;
 			typeParams = jmd.typarams;
 			thrownExceptions = jmd.thrown;
-			nameOfStaticBuilderMethod = jmd.name;
+			nameOfBuilderMethod = jmd.name;
 			if (returnType instanceof JCTypeApply) {
 				returnType = ((JCTypeApply) returnType).clazz;
 			}
@@ -278,7 +278,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 				}
 			}
 		} else {
-			annotationNode.addError("@Builder is only supported on types, constructors, and static methods.");
+			annotationNode.addError("@Builder is only supported on types, constructors, and methods.");
 			return;
 		}
 		
@@ -298,8 +298,16 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		
 		JavacNode builderType = findInnerClass(tdParent, builderClassName);
 		if (builderType == null) {
-			builderType = makeBuilderClass(tdParent, builderClassName, typeParams, ast);
+			builderType = makeBuilderClass(isStatic, tdParent, builderClassName, typeParams, ast);
 		} else {
+			JCClassDecl builderTypeDeclaration = (JCClassDecl) builderType.get();
+			if (isStatic && !builderTypeDeclaration.getModifiers().getFlags().contains(Modifier.STATIC)) {
+				annotationNode.addError("Existing Builder must be a static inner class.");
+				return;
+			} else if (!isStatic && builderTypeDeclaration.getModifiers().getFlags().contains(Modifier.STATIC)) {
+				annotationNode.addError("Existing Builder must be a non-static inner class.");
+				return;
+			}
 			sanityCheckForMethodGeneratingAnnotationsOnBuilderClass(builderType, annotationNode);
 			/* generate errors for @Singular BFDs that have one already defined node. */ {
 				for (BuilderFieldData bfd : builderFields) {
@@ -351,7 +359,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		}
 		
 		if (methodExists(buildMethodName, builderType, -1) == MemberExistsResult.NOT_EXISTS) {
-			JCMethodDecl md = generateBuildMethod(buildMethodName, nameOfStaticBuilderMethod, returnType, builderFields, builderType, thrownExceptions, ast, addCleaning);
+			JCMethodDecl md = generateBuildMethod(isStatic, buildMethodName, nameOfBuilderMethod, returnType, builderFields, builderType, thrownExceptions, ast, addCleaning);
 			if (md != null) injectMethod(builderType, md);
 		}
 		
@@ -367,7 +375,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		if (addCleaning) injectMethod(builderType, generateCleanMethod(builderFields, builderType, ast));
 		
 		if (methodExists(builderMethodName, tdParent, -1) == MemberExistsResult.NOT_EXISTS) {
-			JCMethodDecl md = generateBuilderMethod(builderMethodName, builderClassName, tdParent, typeParams);
+			JCMethodDecl md = generateBuilderMethod(isStatic, builderMethodName, builderClassName, tdParent, typeParams);
 			recursiveSetGeneratedBy(md, ast, annotationNode.getContext());
 			if (md != null) injectMethod(tdParent, md);
 		}
@@ -488,7 +496,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		 */
 	}
 	
-	private JCMethodDecl generateBuildMethod(String name, Name staticName, JCExpression returnType, java.util.List<BuilderFieldData> builderFields, JavacNode type, List<JCExpression> thrownExceptions, JCTree source, boolean addCleaning) {
+	private JCMethodDecl generateBuildMethod(boolean isStatic, String buildName, Name builderName, JCExpression returnType, java.util.List<BuilderFieldData> builderFields, JavacNode type, List<JCExpression> thrownExceptions, JCTree source, boolean addCleaning) {
 		JavacTreeMaker maker = type.getTreeMaker();
 		
 		JCExpression call;
@@ -516,16 +524,19 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 			statements.append(maker.Exec(maker.Assign(maker.Select(maker.Ident(type.toName("this")), type.toName("$lombokUnclean")), maker.Literal(CTC_BOOLEAN, true))));
 		}
 		
-		if (staticName == null) {
+		if (builderName == null) {
 			call = maker.NewClass(null, List.<JCExpression>nil(), returnType, args.toList(), null);
 			statements.append(maker.Return(call));
 		} else {
+
 			ListBuffer<JCExpression> typeParams = new ListBuffer<JCExpression>();
 			for (JCTypeParameter tp : ((JCClassDecl) type.get()).typarams) {
 				typeParams.append(maker.Ident(tp.name));
 			}
-			
-			JCExpression fn = maker.Select(maker.Ident(((JCClassDecl) type.up().get()).name), staticName);
+			JCExpression callee = maker.Ident(((JCClassDecl) type.up().get()).name);
+			if (!isStatic)
+				callee = maker.Select(callee, type.up().toName("this"));
+			JCExpression fn = maker.Select(callee, builderName);
 			call = maker.Apply(typeParams.toList(), fn, args.toList());
 			if (returnType instanceof JCPrimitiveTypeTree && CTC_VOID.equals(typeTag(returnType))) {
 				statements.append(maker.Exec(call));
@@ -536,10 +547,10 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		
 		JCBlock body = maker.Block(0, statements.toList());
 		
-		return maker.MethodDef(maker.Modifiers(Flags.PUBLIC), type.toName(name), returnType, List.<JCTypeParameter>nil(), List.<JCVariableDecl>nil(), thrownExceptions, body, null);
+		return maker.MethodDef(maker.Modifiers(Flags.PUBLIC), type.toName(buildName), returnType, List.<JCTypeParameter>nil(), List.<JCVariableDecl>nil(), thrownExceptions, body, null);
 	}
 	
-	public JCMethodDecl generateBuilderMethod(String builderMethodName, String builderClassName, JavacNode type, List<JCTypeParameter> typeParams) {
+	public JCMethodDecl generateBuilderMethod(boolean isStatic, String builderMethodName, String builderClassName, JavacNode type, List<JCTypeParameter> typeParams) {
 		JavacTreeMaker maker = type.getTreeMaker();
 		
 		ListBuffer<JCExpression> typeArgs = new ListBuffer<JCExpression>();
@@ -551,7 +562,9 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		JCStatement statement = maker.Return(call);
 		
 		JCBlock body = maker.Block(0, List.<JCStatement>of(statement));
-		return maker.MethodDef(maker.Modifiers(Flags.STATIC | Flags.PUBLIC), type.toName(builderMethodName), namePlusTypeParamsToTypeReference(maker, type.toName(builderClassName), typeParams), copyTypeParams(maker, typeParams), List.<JCVariableDecl>nil(), List.<JCExpression>nil(), body, null);
+		int modifiers = Flags.PUBLIC;
+		if (isStatic) modifiers |= Flags.STATIC;
+		return maker.MethodDef(maker.Modifiers(modifiers), type.toName(builderMethodName), namePlusTypeParamsToTypeReference(maker, type.toName(builderClassName), typeParams), copyTypeParams(maker, typeParams), List.<JCVariableDecl>nil(), List.<JCExpression>nil(), body, null);
 	}
 	
 	public void generateBuilderFields(JavacNode builderType, java.util.List<BuilderFieldData> builderFields, JCTree source) {
@@ -615,9 +628,11 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		return null;
 	}
 	
-	public JavacNode makeBuilderClass(JavacNode tdParent, String builderClassName, List<JCTypeParameter> typeParams, JCAnnotation ast) {
+	public JavacNode makeBuilderClass(boolean isStatic, JavacNode tdParent, String builderClassName, List<JCTypeParameter> typeParams, JCAnnotation ast) {
 		JavacTreeMaker maker = tdParent.getTreeMaker();
-		JCModifiers mods = maker.Modifiers(Flags.PUBLIC | Flags.STATIC);
+		int modifiers = Flags.PUBLIC;
+		if (isStatic) modifiers |= Flags.STATIC;
+		JCModifiers mods = maker.Modifiers(modifiers);
 		JCClassDecl builder = maker.ClassDef(mods, tdParent.toName(builderClassName), copyTypeParams(maker, typeParams), null, List.<JCExpression>nil(), List.<JCTree>nil());
 		return injectType(tdParent, builder);
 	}

src/core/lombok/javac/handlers/singulars/JavacGuavaMapSingularizer.java

@@ -32,14 +32,27 @@ public class JavacGuavaMapSingularizer extends JavacGuavaSingularizer {
 	// TODO cgcc.ImmutableClassToInstanceMap
 	// TODO cgcc.ImmutableRangeMap
 	
+	private static final LombokImmutableList<String> SUFFIXES =
+		LombokImmutableList.of("key", "value");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES = LombokImmutableList.of(
+		"com.google.common.collect.ImmutableMap", 
+		"com.google.common.collect.ImmutableBiMap", 
+		"com.google.common.collect.ImmutableSortedMap"
+	);
+	
 	@Override public LombokImmutableList<String> getSupportedTypes() {
-		return LombokImmutableList.of(
-				"com.google.common.collect.ImmutableMap", 
-				"com.google.common.collect.ImmutableBiMap", 
-				"com.google.common.collect.ImmutableSortedMap");
+		return SUPPORTED_TYPES;
 	}
 	
-	@Override protected boolean isMap() {
-		return true;
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "put";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "java.util.Map";
 	}
 }

src/core/lombok/javac/handlers/singulars/JavacGuavaSetListSingularizer.java

@@ -1,16 +1,16 @@
 /*
  * Copyright (C) 2015 The Project Lombok Authors.
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -21,25 +21,36 @@
  */
 package lombok.javac.handlers.singulars;
 
+import org.mangosdk.spi.ProviderFor;
+
 import lombok.core.LombokImmutableList;
 import lombok.javac.handlers.JavacSingularsRecipes.JavacSingularizer;
 
-import org.mangosdk.spi.ProviderFor;
-
 @ProviderFor(JavacSingularizer.class)
 public class JavacGuavaSetListSingularizer extends JavacGuavaSingularizer {
-	// TODO com.google.common.collect.ImmutableTable
 	// TODO com.google.common.collect.ImmutableRangeSet
 	// TODO com.google.common.collect.ImmutableMultiset and com.google.common.collect.ImmutableSortedMultiset
+	private static final LombokImmutableList<String> SUFFIXES = LombokImmutableList.of("");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES = LombokImmutableList.of(
+		"com.google.common.collect.ImmutableCollection", 
+		"com.google.common.collect.ImmutableList", 
+		"com.google.common.collect.ImmutableSet", 
+		"com.google.common.collect.ImmutableSortedSet"
+	);
+	
 	@Override public LombokImmutableList<String> getSupportedTypes() {
-		return LombokImmutableList.of(
-				"com.google.common.collect.ImmutableCollection", 
-				"com.google.common.collect.ImmutableList", 
-				"com.google.common.collect.ImmutableSet", 
-				"com.google.common.collect.ImmutableSortedSet");
+		return SUPPORTED_TYPES;
 	}
 	
-	@Override protected boolean isMap() {
-		return false;
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "add";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "java.lang.Iterable";
 	}
 }

src/core/lombok/javac/handlers/singulars/JavacGuavaSingularizer.java

@@ -1,16 +1,16 @@
 /*
  * Copyright (C) 2015 The Project Lombok Authors.
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -27,6 +27,7 @@ import static lombok.javac.handlers.JavacHandlerUtil.*;
 import java.util.Collections;
 
 import lombok.core.GuavaTypeMap;
+import lombok.core.LombokImmutableList;
 import lombok.core.handlers.HandlerUtil;
 import lombok.javac.JavacNode;
 import lombok.javac.JavacTreeMaker;
@@ -58,12 +59,11 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 		return "builder";
 	}
 	
-	protected abstract boolean isMap();
-	
 	@Override public java.util.List<JavacNode> generateFields(SingularData data, JavacNode builderType, JCTree source) {
 		JavacTreeMaker maker = builderType.getTreeMaker();
-		JCExpression type = JavacHandlerUtil.chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "Builder");
-		type = addTypeArgs(isMap() ? 2 : 1, false, builderType, type, data.getTypeArgs(), source);
+		String simpleTypeName = getSimpleTargetTypeName(data);
+		JCExpression type = JavacHandlerUtil.chainDots(builderType, "com", "google", "common", "collect", simpleTypeName, "Builder");
+		type = addTypeArgs(getTypeArgumentsCount(), false, builderType, type, data.getTypeArgs(), source);
 		
 		JCVariableDecl buildField = maker.VarDef(maker.Modifiers(Flags.PRIVATE), data.getPluralName(), type, null);
 		return Collections.singletonList(injectFieldAndMarkGenerated(builderType, buildField));
@@ -74,75 +74,94 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 		JCExpression returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
 		JCStatement returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
 		generateSingularMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
-		
+
 		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
 		returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
 		generatePluralMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
+		returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
+		generateClearMethod(maker, returnType, returnStatement, data, builderType, source);
+	}
+	
+	private void generateClearMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source) {
+		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+		List<JCTypeParameter> typeParams = List.nil();
+		List<JCExpression> thrown = List.nil();
+		List<JCVariableDecl> params = List.nil();
+		
+		JCExpression thisDotField = maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName());
+		JCStatement clearField = maker.Exec(maker.Assign(thisDotField, maker.Literal(CTC_BOT, null)));
+		List<JCStatement> statements = returnStatement != null ? List.of(clearField, returnStatement) : List.of(clearField);
+		
+		JCBlock body = maker.Block(0, statements);
+		Name methodName = builderType.toName(HandlerUtil.buildAccessorName("clear", data.getPluralName().toString()));
+		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, params, thrown, body, null);
+		injectMethod(builderType, method);
 	}
 	
 	void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
 		List<JCTypeParameter> typeParams = List.nil();
 		List<JCExpression> thrown = List.nil();
-		boolean mapMode = isMap();
 		
-		Name keyName = !mapMode ? data.getSingularName() : builderType.toName(data.getSingularName() + "$key");
-		Name valueName = !mapMode ? null : builderType.toName(data.getSingularName() + "$value");
+		LombokImmutableList<String> suffixes = getArgumentSuffixes();
+		Name[] names = new Name[suffixes.size()];
+		for (int i = 0; i < suffixes.size(); i++) {
+			String s = suffixes.get(i);
+			Name n = data.getSingularName();
+			names[i] = s.isEmpty() ? n : builderType.toName(s);
+		}
 		
 		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
 		ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
-		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, mapMode, source));
-		JCExpression thisDotFieldDotAdd = chainDots(builderType, "this", data.getPluralName().toString(), mapMode ? "put" : "add");
-		List<JCExpression> invokeAddExpr;
-		if (mapMode) {
-			invokeAddExpr = List.<JCExpression>of(maker.Ident(keyName), maker.Ident(valueName));
-		} else {
-			invokeAddExpr = List.<JCExpression>of(maker.Ident(keyName));
+		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, source));
+		JCExpression thisDotFieldDotAdd = chainDots(builderType, "this", data.getPluralName().toString(), getAddMethodName());
+		ListBuffer<JCExpression> invokeAddExprBuilder = new ListBuffer<JCExpression>();
+		for (int i = 0; i < suffixes.size(); i++) {
+			invokeAddExprBuilder.append(maker.Ident(names[i]));
 		}
+		List<JCExpression> invokeAddExpr = invokeAddExprBuilder.toList();
 		JCExpression invokeAdd = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotAdd, invokeAddExpr);
 		statements.append(maker.Exec(invokeAdd));
 		if (returnStatement != null) statements.append(returnStatement);
 		JCBlock body = maker.Block(0, statements.toList());
 		Name methodName = data.getSingularName();
 		long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
-		if (!fluent) methodName = builderType.toName(HandlerUtil.buildAccessorName(mapMode ? "put" : "add", methodName.toString()));
-		List<JCVariableDecl> params;
-		if (mapMode) {
-			JCExpression keyType = cloneParamType(0, maker, data.getTypeArgs(), builderType, source);
-			JCExpression valueType = cloneParamType(1, maker, data.getTypeArgs(), builderType, source);
-			JCVariableDecl paramKey = maker.VarDef(maker.Modifiers(paramFlags), keyName, keyType, null);
-			JCVariableDecl paramValue = maker.VarDef(maker.Modifiers(paramFlags), valueName, valueType, null);
-			params = List.of(paramKey, paramValue);
-		} else {
-			JCExpression paramType = cloneParamType(0, maker, data.getTypeArgs(), builderType, source);
-			params = List.of(maker.VarDef(maker.Modifiers(paramFlags), data.getSingularName(), paramType, null));
+		if (!fluent) methodName = builderType.toName(HandlerUtil.buildAccessorName(getAddMethodName(), methodName.toString()));
+		ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>();
+		for (int i = 0; i < suffixes.size(); i++) {
+			JCExpression pt = cloneParamType(i, maker, data.getTypeArgs(), builderType, source);
+			JCVariableDecl p = maker.VarDef(maker.Modifiers(paramFlags), names[i], pt, null);
+			params.append(p);
 		}
-		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, params, thrown, body, null);
+		
+		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, params.toList(), thrown, body, null);
 		injectMethod(builderType, method);
 	}
 	
 	protected void generatePluralMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
 		List<JCTypeParameter> typeParams = List.nil();
 		List<JCExpression> thrown = List.nil();
-		boolean mapMode = isMap();
 		
 		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
 		ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
-		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, mapMode, source));
-		JCExpression thisDotFieldDotAddAll = chainDots(builderType, "this", data.getPluralName().toString(), mapMode ? "putAll" : "addAll");
+		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, source));
+		JCExpression thisDotFieldDotAddAll = chainDots(builderType, "this", data.getPluralName().toString(), getAddMethodName() + "All");
 		JCExpression invokeAddAll = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotAddAll, List.<JCExpression>of(maker.Ident(data.getPluralName())));
 		statements.append(maker.Exec(invokeAddAll));
 		if (returnStatement != null) statements.append(returnStatement);
 		JCBlock body = maker.Block(0, statements.toList());
 		Name methodName = data.getPluralName();
 		long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
-		if (!fluent) methodName = builderType.toName(HandlerUtil.buildAccessorName(mapMode ? "putAll" : "addAll", methodName.toString()));
+		if (!fluent) methodName = builderType.toName(HandlerUtil.buildAccessorName(getAddMethodName() + "All", methodName.toString()));
 		JCExpression paramType;
-		if (mapMode) {
-			paramType = chainDots(builderType, "java", "util", "Map");
+		String aaTypeName = getAddAllTypeName();
+		if (aaTypeName.startsWith("java.lang.") && aaTypeName.indexOf('.', 11) == -1) {
+			paramType = genJavaLangTypeRef(builderType, aaTypeName.substring(10));
 		} else {
-			paramType = genJavaLangTypeRef(builderType, "Iterable");
+			paramType = chainDotsString(builderType, aaTypeName);
 		}
-		paramType = addTypeArgs(mapMode ? 2 : 1, true, builderType, paramType, data.getTypeArgs(), source);
+		paramType = addTypeArgs(getTypeArgumentsCount(), true, builderType, paramType, data.getTypeArgs(), source);
 		JCVariableDecl param = maker.VarDef(maker.Modifiers(paramFlags), data.getPluralName(), paramType, null);
 		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, List.of(param), thrown, body, null);
 		injectMethod(builderType, method);
@@ -151,15 +170,15 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 	@Override public void appendBuildCode(SingularData data, JavacNode builderType, JCTree source, ListBuffer<JCStatement> statements, Name targetVariableName) {
 		JavacTreeMaker maker = builderType.getTreeMaker();
 		List<JCExpression> jceBlank = List.nil();
-		boolean mapMode = isMap();
 		
 		JCExpression varType = chainDotsString(builderType, data.getTargetFqn());
-		varType = addTypeArgs(mapMode ? 2 : 1, false, builderType, varType, data.getTypeArgs(), source);
+		int agrumentsCount = getTypeArgumentsCount();
+		varType = addTypeArgs(agrumentsCount, false, builderType, varType, data.getTypeArgs(), source);
 		
 		JCExpression empty; {
 			//ImmutableX.of()
 			JCExpression emptyMethod = chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "of");
-			List<JCExpression> invokeTypeArgs = createTypeArgs(mapMode ? 2 : 1, false, builderType, data.getTypeArgs(), source);
+			List<JCExpression> invokeTypeArgs = createTypeArgs(agrumentsCount, false, builderType, data.getTypeArgs(), source);
 			empty = maker.Apply(invokeTypeArgs, emptyMethod, jceBlank);
 		}
 		
@@ -179,7 +198,7 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 		statements.append(jcs);
 	}
 	
-	protected JCStatement createConstructBuilderVarIfNeeded(JavacTreeMaker maker, SingularData data, JavacNode builderType, boolean mapMode, JCTree source) {
+	protected JCStatement createConstructBuilderVarIfNeeded(JavacTreeMaker maker, SingularData data, JavacNode builderType, JCTree source) {
 		List<JCExpression> jceBlank = List.nil();
 		
 		JCExpression thisDotField = maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName());
@@ -191,4 +210,12 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 		
 		return maker.If(cond, thenPart, null);
 	}
+	
+	protected abstract LombokImmutableList<String> getArgumentSuffixes();
+	protected abstract String getAddMethodName();
+	protected abstract String getAddAllTypeName();
+	
+	protected int getTypeArgumentsCount() {
+		return getArgumentSuffixes().size();
+	}
 }

src/core/lombok/javac/handlers/singulars/JavacGuavaTableSingularizer.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2015 The Project Lombok Authors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.javac.handlers.singulars;
+
+import org.mangosdk.spi.ProviderFor;
+
+import lombok.core.LombokImmutableList;
+import lombok.javac.handlers.JavacSingularsRecipes.JavacSingularizer;
+
+@ProviderFor(JavacSingularizer.class)
+public class JavacGuavaTableSingularizer extends JavacGuavaSingularizer {
+	private static final LombokImmutableList<String> SUFFIXES =
+		LombokImmutableList.of("rowKey", "columnKey", "value");
+	private static final LombokImmutableList<String> SUPPORTED_TYPES =
+		LombokImmutableList.of("com.google.common.collect.ImmutableTable");
+	
+	@Override public LombokImmutableList<String> getSupportedTypes() {
+		return SUPPORTED_TYPES;
+	}
+	
+	@Override protected LombokImmutableList<String> getArgumentSuffixes() {
+		return SUFFIXES;
+	}
+	
+	@Override protected String getAddMethodName() {
+		return "put";
+	}
+	
+	@Override protected String getAddAllTypeName() {
+		return "com.google.common.collect.Table";
+	}
+}

src/core/lombok/javac/handlers/singulars/JavacJavaUtilListSetSingularizer.java

@@ -91,6 +91,30 @@ abstract class JavacJavaUtilListSetSingularizer extends JavacJavaUtilSingularize
 		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
 		returnStatement = chain ? maker.Return(maker.Ident(thisName)) : null;
 		generatePluralMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
+		returnStatement = chain ? maker.Return(maker.Ident(thisName)) : null;
+		generateClearMethod(maker, returnType, returnStatement, data, builderType, source);
+	}
+	
+	private void generateClearMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source) {
+		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+		List<JCTypeParameter> typeParams = List.nil();
+		List<JCExpression> thrown = List.nil();
+		List<JCVariableDecl> params = List.nil();
+		List<JCExpression> jceBlank = List.nil();
+		
+		JCExpression thisDotField = maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName());
+		JCExpression thisDotFieldDotClear = maker.Select(maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName()), builderType.toName("clear"));
+		JCStatement clearCall = maker.Exec(maker.Apply(jceBlank, thisDotFieldDotClear, jceBlank));
+		JCExpression cond = maker.Binary(CTC_NOT_EQUAL, thisDotField, maker.Literal(CTC_BOT, null));
+		JCStatement ifSetCallClear = maker.If(cond, clearCall, null);
+		List<JCStatement> statements = returnStatement != null ? List.of(ifSetCallClear, returnStatement) : List.of(ifSetCallClear);
+		
+		JCBlock body = maker.Block(0, statements);
+		Name methodName = builderType.toName(HandlerUtil.buildAccessorName("clear", data.getPluralName().toString()));
+		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, params, thrown, body, null);
+		injectMethod(builderType, method);
 	}
 	
 	void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {

src/core/lombok/javac/handlers/singulars/JavacJavaUtilMapSingularizer.java

@@ -115,6 +115,33 @@ public class JavacJavaUtilMapSingularizer extends JavacJavaUtilSingularizer {
 		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
 		returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
 		generatePluralMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
+		returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
+		generateClearMethod(maker, returnType, returnStatement, data, builderType, source);
+	}
+	
+	private void generateClearMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source) {
+		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+		List<JCTypeParameter> typeParams = List.nil();
+		List<JCExpression> thrown = List.nil();
+		List<JCVariableDecl> params = List.nil();
+		List<JCExpression> jceBlank = List.nil();
+		
+		JCExpression thisDotKeyField = chainDots(builderType, "this", data.getPluralName() + "$key");
+		JCExpression thisDotKeyFieldDotClear = chainDots(builderType, "this", data.getPluralName() + "$key", "clear");
+		JCExpression thisDotValueFieldDotClear = chainDots(builderType, "this", data.getPluralName() + "$value", "clear");
+		JCStatement clearKeyCall = maker.Exec(maker.Apply(jceBlank, thisDotKeyFieldDotClear, jceBlank));
+		JCStatement clearValueCall = maker.Exec(maker.Apply(jceBlank, thisDotValueFieldDotClear, jceBlank));
+		JCExpression cond = maker.Binary(CTC_NOT_EQUAL, thisDotKeyField, maker.Literal(CTC_BOT, null));
+		JCBlock clearCalls = maker.Block(0, List.of(clearKeyCall, clearValueCall));
+		JCStatement ifSetCallClear = maker.If(cond, clearCalls, null);
+		List<JCStatement> statements = returnStatement != null ? List.of(ifSetCallClear, returnStatement) : List.of(ifSetCallClear);
+		
+		JCBlock body = maker.Block(0, statements);
+		Name methodName = builderType.toName(HandlerUtil.buildAccessorName("clear", data.getPluralName().toString()));
+		JCMethodDecl method = maker.MethodDef(mods, methodName, returnType, typeParams, params, thrown, body, null);
+		injectMethod(builderType, method);
 	}
 	
 	private void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {

test/transform/resource/after-delombok/BuilderInstanceMethod.java

@@ -0,0 +1,66 @@
+import java.util.List;
+class BuilderInstanceMethod<T> {
+	public String create(int show, final int yes, List<T> also, int $andMe) {
+		return "" + show + yes + also + $andMe;
+	}
+	@java.lang.SuppressWarnings("all")
+	@javax.annotation.Generated("lombok")
+	public class StringBuilder {
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		private int show;
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		private int yes;
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		private List<T> also;
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		private int $andMe;
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		StringBuilder() {
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public StringBuilder show(final int show) {
+			this.show = show;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public StringBuilder yes(final int yes) {
+			this.yes = yes;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public StringBuilder also(final List<T> also) {
+			this.also = also;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public StringBuilder $andMe(final int $andMe) {
+			this.$andMe = $andMe;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public String build() {
+			return BuilderInstanceMethod.this.create(show, yes, also, $andMe);
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public java.lang.String toString() {
+			return "BuilderInstanceMethod.StringBuilder(show=" + this.show + ", yes=" + this.yes + ", also=" + this.also + ", $andMe=" + this.$andMe + ")";
+		}
+	}
+	@java.lang.SuppressWarnings("all")
+	@javax.annotation.Generated("lombok")
+	public StringBuilder builder() {
+		return new StringBuilder();
+	}
+}

test/transform/resource/after-delombok/BuilderSingularGuavaListsSets.java

@@ -2,19 +2,22 @@ import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedSet;
+import com.google.common.collect.ImmutableTable;
 class BuilderSingularGuavaListsSets<T> {
 	private ImmutableList<T> cards;
 	private ImmutableCollection<? extends Number> frogs;
 	@SuppressWarnings("all")
 	private ImmutableSet rawSet;
 	private ImmutableSortedSet<String> passes;
+	private ImmutableTable<? extends Number, ? extends Number, String> users;
 	@java.lang.SuppressWarnings("all")
 	@javax.annotation.Generated("lombok")
-	BuilderSingularGuavaListsSets(final ImmutableList<T> cards, final ImmutableCollection<? extends Number> frogs, final ImmutableSet rawSet, final ImmutableSortedSet<String> passes) {
+	BuilderSingularGuavaListsSets(final ImmutableList<T> cards, final ImmutableCollection<? extends Number> frogs, final ImmutableSet rawSet, final ImmutableSortedSet<String> passes, final ImmutableTable<? extends Number, ? extends Number, String> users) {
 		this.cards = cards;
 		this.frogs = frogs;
 		this.rawSet = rawSet;
 		this.passes = passes;
+		this.users = users;
 	}
 	@java.lang.SuppressWarnings("all")
 	@javax.annotation.Generated("lombok")
@@ -33,6 +36,9 @@ class BuilderSingularGuavaListsSets<T> {
 		private com.google.common.collect.ImmutableSortedSet.Builder<String> passes;
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		private com.google.common.collect.ImmutableTable.Builder<Number, Number, String> users;
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		BuilderSingularGuavaListsSetsBuilder() {
 		}
 		@java.lang.SuppressWarnings("all")
@@ -51,6 +57,12 @@ class BuilderSingularGuavaListsSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> clearCards() {
+			this.cards = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularGuavaListsSetsBuilder<T> frog(final Number frog) {
 			if (this.frogs == null) this.frogs = com.google.common.collect.ImmutableList.builder();
 			this.frogs.add(frog);
@@ -65,6 +77,12 @@ class BuilderSingularGuavaListsSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> clearFrogs() {
+			this.frogs = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularGuavaListsSetsBuilder<T> rawSet(final java.lang.Object rawSet) {
 			if (this.rawSet == null) this.rawSet = com.google.common.collect.ImmutableSet.builder();
 			this.rawSet.add(rawSet);
@@ -79,6 +97,12 @@ class BuilderSingularGuavaListsSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> clearRawSet() {
+			this.rawSet = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularGuavaListsSetsBuilder<T> pass(final String pass) {
 			if (this.passes == null) this.passes = com.google.common.collect.ImmutableSortedSet.naturalOrder();
 			this.passes.add(pass);
@@ -93,18 +117,45 @@ class BuilderSingularGuavaListsSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> clearPasses() {
+			this.passes = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> user(final Number rowKey, final Number columnKey, final String value) {
+			if (this.users == null) this.users = com.google.common.collect.ImmutableTable.builder();
+			this.users.put(rowKey, columnKey, value);
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> users(final com.google.common.collect.Table<? extends Number, ? extends Number, ? extends String> users) {
+			if (this.users == null) this.users = com.google.common.collect.ImmutableTable.builder();
+			this.users.putAll(users);
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaListsSetsBuilder<T> clearUsers() {
+			this.users = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularGuavaListsSets<T> build() {
 			com.google.common.collect.ImmutableList<T> cards = this.cards == null ? com.google.common.collect.ImmutableList.<T>of() : this.cards.build();
 			com.google.common.collect.ImmutableCollection<Number> frogs = this.frogs == null ? com.google.common.collect.ImmutableList.<Number>of() : this.frogs.build();
 			com.google.common.collect.ImmutableSet<java.lang.Object> rawSet = this.rawSet == null ? com.google.common.collect.ImmutableSet.<java.lang.Object>of() : this.rawSet.build();
 			com.google.common.collect.ImmutableSortedSet<String> passes = this.passes == null ? com.google.common.collect.ImmutableSortedSet.<String>of() : this.passes.build();
-			return new BuilderSingularGuavaListsSets<T>(cards, frogs, rawSet, passes);
+			com.google.common.collect.ImmutableTable<Number, Number, String> users = this.users == null ? com.google.common.collect.ImmutableTable.<Number, Number, String>of() : this.users.build();
+			return new BuilderSingularGuavaListsSets<T>(cards, frogs, rawSet, passes, users);
 		}
 		@java.lang.Override
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
 		public java.lang.String toString() {
-			return "BuilderSingularGuavaListsSets.BuilderSingularGuavaListsSetsBuilder(cards=" + this.cards + ", frogs=" + this.frogs + ", rawSet=" + this.rawSet + ", passes=" + this.passes + ")";
+			return "BuilderSingularGuavaListsSets.BuilderSingularGuavaListsSetsBuilder(cards=" + this.cards + ", frogs=" + this.frogs + ", rawSet=" + this.rawSet + ", passes=" + this.passes + ", users=" + this.users + ")";
 		}
 	}
 	@java.lang.SuppressWarnings("all")

test/transform/resource/after-delombok/BuilderSingularGuavaMaps.java

@@ -31,9 +31,9 @@ class BuilderSingularGuavaMaps<K, V> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
-		public BuilderSingularGuavaMapsBuilder<K, V> battleaxe(final K battleaxe$key, final V battleaxe$value) {
+		public BuilderSingularGuavaMapsBuilder<K, V> battleaxe(final K key, final V value) {
 			if (this.battleaxes == null) this.battleaxes = com.google.common.collect.ImmutableMap.builder();
-			this.battleaxes.put(battleaxe$key, battleaxe$value);
+			this.battleaxes.put(key, value);
 			return this;
 		}
 		@java.lang.SuppressWarnings("all")
@@ -45,9 +45,15 @@ class BuilderSingularGuavaMaps<K, V> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
-		public BuilderSingularGuavaMapsBuilder<K, V> vertex(final Integer vertex$key, final V vertex$value) {
+		public BuilderSingularGuavaMapsBuilder<K, V> clearBattleaxes() {
+			this.battleaxes = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaMapsBuilder<K, V> vertex(final Integer key, final V value) {
 			if (this.vertices == null) this.vertices = com.google.common.collect.ImmutableSortedMap.naturalOrder();
-			this.vertices.put(vertex$key, vertex$value);
+			this.vertices.put(key, value);
 			return this;
 		}
 		@java.lang.SuppressWarnings("all")
@@ -59,9 +65,15 @@ class BuilderSingularGuavaMaps<K, V> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
-		public BuilderSingularGuavaMapsBuilder<K, V> rawMap(final java.lang.Object rawMap$key, final java.lang.Object rawMap$value) {
+		public BuilderSingularGuavaMapsBuilder<K, V> clearVertices() {
+			this.vertices = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaMapsBuilder<K, V> rawMap(final java.lang.Object key, final java.lang.Object value) {
 			if (this.rawMap == null) this.rawMap = com.google.common.collect.ImmutableBiMap.builder();
-			this.rawMap.put(rawMap$key, rawMap$value);
+			this.rawMap.put(key, value);
 			return this;
 		}
 		@java.lang.SuppressWarnings("all")
@@ -73,6 +85,12 @@ class BuilderSingularGuavaMaps<K, V> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularGuavaMapsBuilder<K, V> clearRawMap() {
+			this.rawMap = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularGuavaMaps<K, V> build() {
 			com.google.common.collect.ImmutableMap<K, V> battleaxes = this.battleaxes == null ? com.google.common.collect.ImmutableMap.<K, V>of() : this.battleaxes.build();
 			com.google.common.collect.ImmutableSortedMap<Integer, V> vertices = this.vertices == null ? com.google.common.collect.ImmutableSortedMap.<Integer, V>of() : this.vertices.build();

test/transform/resource/after-delombok/BuilderSingularLists.java

@@ -44,6 +44,12 @@ class BuilderSingularLists<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularListsBuilder<T> clearChildren() {
+			if (this.children != null) this.children.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularListsBuilder<T> scarf(final Number scarf) {
 			if (this.scarves == null) this.scarves = new java.util.ArrayList<Number>();
 			this.scarves.add(scarf);
@@ -58,6 +64,12 @@ class BuilderSingularLists<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularListsBuilder<T> clearScarves() {
+			if (this.scarves != null) this.scarves.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularListsBuilder<T> rawList(final java.lang.Object rawList) {
 			if (this.rawList == null) this.rawList = new java.util.ArrayList<java.lang.Object>();
 			this.rawList.add(rawList);
@@ -72,6 +84,12 @@ class BuilderSingularLists<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularListsBuilder<T> clearRawList() {
+			if (this.rawList != null) this.rawList.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularLists<T> build() {
 			java.util.List<T> children;
 			switch (this.children == null ? 0 : this.children.size()) {

test/transform/resource/after-delombok/BuilderSingularMaps.java

@@ -57,6 +57,14 @@ class BuilderSingularMaps<K, V> {
 			return this;
 		}
 		@SuppressWarnings("all")
+		public BuilderSingularMapsBuilder<K, V> clearWomen() {
+			if (this.women$key != null) {
+				this.women$key.clear();
+				this.women$value.clear();
+			}
+			return this;
+		}
+		@SuppressWarnings("all")
 		public BuilderSingularMapsBuilder<K, V> man(K manKey, Number manValue) {
 			if (this.men$key == null) {
 				this.men$key = new java.util.ArrayList<K>();
@@ -79,6 +87,14 @@ class BuilderSingularMaps<K, V> {
 			return this;
 		}
 		@SuppressWarnings("all")
+		public BuilderSingularMapsBuilder<K, V> clearMen() {
+			if (this.men$key != null) {
+				this.men$key.clear();
+				this.men$value.clear();
+			}
+			return this;
+		}
+		@SuppressWarnings("all")
 		public BuilderSingularMapsBuilder<K, V> rawMap(Object rawMapKey, Object rawMapValue) {
 			if (this.rawMap$key == null) {
 				this.rawMap$key = new java.util.ArrayList<Object>();
@@ -101,6 +117,14 @@ class BuilderSingularMaps<K, V> {
 			return this;
 		}
 		@SuppressWarnings("all")
+		public BuilderSingularMapsBuilder<K, V> clearRawMap() {
+			if (this.rawMap$key != null) {
+				this.rawMap$key.clear();
+				this.rawMap$value.clear();
+			}
+			return this;
+		}
+		@SuppressWarnings("all")
 		public BuilderSingularMapsBuilder<K, V> stringMap(String stringMapKey, V stringMapValue) {
 			if (this.stringMap$key == null) {
 				this.stringMap$key = new java.util.ArrayList<String>();
@@ -123,6 +147,14 @@ class BuilderSingularMaps<K, V> {
 			return this;
 		}
 		@SuppressWarnings("all")
+		public BuilderSingularMapsBuilder<K, V> clearStringMap() {
+			if (this.stringMap$key != null) {
+				this.stringMap$key.clear();
+				this.stringMap$value.clear();
+			}
+			return this;
+		}
+		@SuppressWarnings("all")
 		public BuilderSingularMaps<K, V> build() {
 			java.util.Map<K, V> women;
 			switch (this.women$key == null ? 0 : this.women$key.size()) {

test/transform/resource/after-delombok/BuilderSingularNoAuto.java

@@ -42,6 +42,12 @@ class BuilderSingularNoAuto {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularNoAutoBuilder clearThings() {
+			if (this.things != null) this.things.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularNoAutoBuilder widget(final String widget) {
 			if (this.widgets == null) this.widgets = new java.util.ArrayList<String>();
 			this.widgets.add(widget);
@@ -56,6 +62,12 @@ class BuilderSingularNoAuto {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularNoAutoBuilder clearWidgets() {
+			if (this.widgets != null) this.widgets.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularNoAutoBuilder items(final String items) {
 			if (this.items == null) this.items = new java.util.ArrayList<String>();
 			this.items.add(items);
@@ -70,6 +82,12 @@ class BuilderSingularNoAuto {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularNoAutoBuilder clearItems() {
+			if (this.items != null) this.items.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularNoAuto build() {
 			java.util.List<String> things;
 			switch (this.things == null ? 0 : this.things.size()) {

test/transform/resource/after-delombok/BuilderSingularRedirectToGuava.java

@@ -44,9 +44,15 @@ class BuilderSingularRedirectToGuava {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
-		public BuilderSingularRedirectToGuavaBuilder thing(final Integer thing$key, final Number thing$value) {
+		public BuilderSingularRedirectToGuavaBuilder clearDangerMice() {
+			this.dangerMice = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
+		public BuilderSingularRedirectToGuavaBuilder thing(final Integer key, final Number value) {
 			if (this.things == null) this.things = com.google.common.collect.ImmutableSortedMap.naturalOrder();
-			this.things.put(thing$key, thing$value);
+			this.things.put(key, value);
 			return this;
 		}
 		@java.lang.SuppressWarnings("all")
@@ -58,6 +64,12 @@ class BuilderSingularRedirectToGuava {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularRedirectToGuavaBuilder clearThings() {
+			this.things = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularRedirectToGuavaBuilder doohickey(final Class<?> doohickey) {
 			if (this.doohickeys == null) this.doohickeys = com.google.common.collect.ImmutableList.builder();
 			this.doohickeys.add(doohickey);
@@ -72,6 +84,12 @@ class BuilderSingularRedirectToGuava {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularRedirectToGuavaBuilder clearDoohickeys() {
+			this.doohickeys = null;
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularRedirectToGuava build() {
 			java.util.Set<String> dangerMice = this.dangerMice == null ? com.google.common.collect.ImmutableSet.<String>of() : this.dangerMice.build();
 			java.util.NavigableMap<Integer, Number> things = this.things == null ? com.google.common.collect.ImmutableSortedMap.<Integer, Number>of() : this.things.build();

test/transform/resource/after-delombok/BuilderSingularSets.java

@@ -49,6 +49,12 @@ class BuilderSingularSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularSetsBuilder<T> clearDangerMice() {
+			if (this.dangerMice != null) this.dangerMice.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularSetsBuilder<T> octopus(final Number octopus) {
 			if (this.octopodes == null) this.octopodes = new java.util.ArrayList<Number>();
 			this.octopodes.add(octopus);
@@ -63,6 +69,12 @@ class BuilderSingularSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularSetsBuilder<T> clearOctopodes() {
+			if (this.octopodes != null) this.octopodes.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularSetsBuilder<T> rawSet(final java.lang.Object rawSet) {
 			if (this.rawSet == null) this.rawSet = new java.util.ArrayList<java.lang.Object>();
 			this.rawSet.add(rawSet);
@@ -77,6 +89,12 @@ class BuilderSingularSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularSetsBuilder<T> clearRawSet() {
+			if (this.rawSet != null) this.rawSet.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularSetsBuilder<T> stringSet(final String stringSet) {
 			if (this.stringSet == null) this.stringSet = new java.util.ArrayList<String>();
 			this.stringSet.add(stringSet);
@@ -91,6 +109,12 @@ class BuilderSingularSets<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderSingularSetsBuilder<T> clearStringSet() {
+			if (this.stringSet != null) this.stringSet.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderSingularSets<T> build() {
 			java.util.Set<T> dangerMice;
 			switch (this.dangerMice == null ? 0 : this.dangerMice.size()) {

test/transform/resource/after-delombok/BuilderWithToBuilder.java

@@ -68,6 +68,12 @@ class BuilderWithToBuilder<T> {
 		}
 		@java.lang.SuppressWarnings("all")
 		@javax.annotation.Generated("lombok")
+		public BuilderWithToBuilderBuilder<T> clearBars() {
+			if (this.bars != null) this.bars.clear();
+			return this;
+		}
+		@java.lang.SuppressWarnings("all")
+		@javax.annotation.Generated("lombok")
 		public BuilderWithToBuilder<T> build() {
 			java.util.List<T> bars;
 			switch (this.bars == null ? 0 : this.bars.size()) {

test/transform/resource/after-ecj/BuilderInstanceMethod.java

@@ -0,0 +1,43 @@
+import java.util.List;
+class BuilderInstanceMethod<T> {
+  public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") class StringBuilder {
+    private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") int show;
+    private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") int yes;
+    private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") List<T> also;
+    private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") int $andMe;
+    @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder() {
+      super();
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder show(final int show) {
+      this.show = show;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder yes(final int yes) {
+      this.yes = yes;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder also(final List<T> also) {
+      this.also = also;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder $andMe(final int $andMe) {
+      this.$andMe = $andMe;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") String build() {
+      return BuilderInstanceMethod.this.create(show, yes, also, $andMe);
+    }
+    public @java.lang.Override @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") java.lang.String toString() {
+      return (((((((("BuilderInstanceMethod.StringBuilder(show=" + this.show) + ", yes=") + this.yes) + ", also=") + this.also) + ", $andMe=") + this.$andMe) + ")");
+    }
+  }
+  BuilderInstanceMethod() {
+    super();
+  }
+  public @lombok.Builder String create(int show, final int yes, List<T> also, int $andMe) {
+    return (((("" + show) + yes) + also) + $andMe);
+  }
+  public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") StringBuilder builder() {
+    return new StringBuilder();
+  }
+}

test/transform/resource/after-ecj/BuilderSingularGuavaListsSets.java

@@ -2,6 +2,7 @@ import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedSet;
+import com.google.common.collect.ImmutableTable;
 import lombok.Singular;
 @lombok.Builder class BuilderSingularGuavaListsSets<T> {
   public static @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") class BuilderSingularGuavaListsSetsBuilder<T> {
@@ -9,6 +10,7 @@ import lombok.Singular;
     private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") com.google.common.collect.ImmutableList.Builder<Number> frogs;
     private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") com.google.common.collect.ImmutableSet.Builder<java.lang.Object> rawSet;
     private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") com.google.common.collect.ImmutableSortedSet.Builder<String> passes;
+    private @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") com.google.common.collect.ImmutableTable.Builder<Number, Number, String> users;
     @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder() {
       super();
     }
@@ -24,6 +26,10 @@ import lombok.Singular;
       this.cards.addAll(cards);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> clearCards() {
+      this.cards = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> frog(Number frog) {
       if ((this.frogs == null))
           this.frogs = com.google.common.collect.ImmutableList.builder();
@@ -36,6 +42,10 @@ import lombok.Singular;
       this.frogs.addAll(frogs);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> clearFrogs() {
+      this.frogs = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> rawSet(java.lang.Object rawSet) {
       if ((this.rawSet == null))
           this.rawSet = com.google.common.collect.ImmutableSet.builder();
@@ -48,6 +58,10 @@ import lombok.Singular;
       this.rawSet.addAll(rawSet);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> clearRawSet() {
+      this.rawSet = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> pass(String pass) {
       if ((this.passes == null))
           this.passes = com.google.common.collect.ImmutableSortedSet.naturalOrder();
@@ -60,27 +74,50 @@ import lombok.Singular;
       this.passes.addAll(passes);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> clearPasses() {
+      this.passes = null;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> user(Number rowKey, Number columnKey, String value) {
+      if ((this.users == null))
+          this.users = com.google.common.collect.ImmutableTable.builder();
+      this.users.put(rowKey, columnKey, value);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> users(com.google.common.collect.Table<? extends Number, ? extends Number, ? extends String> users) {
+      if ((this.users == null))
+          this.users = com.google.common.collect.ImmutableTable.builder();
+      this.users.putAll(users);
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSetsBuilder<T> clearUsers() {
+      this.users = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSets<T> build() {
       com.google.common.collect.ImmutableList<T> cards = ((this.cards == null) ? com.google.common.collect.ImmutableList.<T>of() : this.cards.build());
       com.google.common.collect.ImmutableCollection<Number> frogs = ((this.frogs == null) ? com.google.common.collect.ImmutableList.<Number>of() : this.frogs.build());
       com.google.common.collect.ImmutableSet<java.lang.Object> rawSet = ((this.rawSet == null) ? com.google.common.collect.ImmutableSet.<java.lang.Object>of() : this.rawSet.build());
       com.google.common.collect.ImmutableSortedSet<String> passes = ((this.passes == null) ? com.google.common.collect.ImmutableSortedSet.<String>of() : this.passes.build());
-      return new BuilderSingularGuavaListsSets<T>(cards, frogs, rawSet, passes);
+      com.google.common.collect.ImmutableTable<Number, Number, String> users = ((this.users == null) ? com.google.common.collect.ImmutableTable.<Number, Number, String>of() : this.users.build());
+      return new BuilderSingularGuavaListsSets<T>(cards, frogs, rawSet, passes, users);
     }
     public @java.lang.Override @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") java.lang.String toString() {
-      return (((((((("BuilderSingularGuavaListsSets.BuilderSingularGuavaListsSetsBuilder(cards=" + this.cards) + ", frogs=") + this.frogs) + ", rawSet=") + this.rawSet) + ", passes=") + this.passes) + ")");
+      return (((((((((("BuilderSingularGuavaListsSets.BuilderSingularGuavaListsSetsBuilder(cards=" + this.cards) + ", frogs=") + this.frogs) + ", rawSet=") + this.rawSet) + ", passes=") + this.passes) + ", users=") + this.users) + ")");
     }
   }
   private @Singular ImmutableList<T> cards;
   private @Singular ImmutableCollection<? extends Number> frogs;
   private @SuppressWarnings("all") @Singular("rawSet") ImmutableSet rawSet;
   private @Singular ImmutableSortedSet<String> passes;
-  @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSets(final ImmutableList<T> cards, final ImmutableCollection<? extends Number> frogs, final ImmutableSet rawSet, final ImmutableSortedSet<String> passes) {
+  private @Singular ImmutableTable<? extends Number, ? extends Number, String> users;
+  @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaListsSets(final ImmutableList<T> cards, final ImmutableCollection<? extends Number> frogs, final ImmutableSet rawSet, final ImmutableSortedSet<String> passes, final ImmutableTable<? extends Number, ? extends Number, String> users) {
     super();
     this.cards = cards;
     this.frogs = frogs;
     this.rawSet = rawSet;
     this.passes = passes;
+    this.users = users;
   }
   public static @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") <T>BuilderSingularGuavaListsSetsBuilder<T> builder() {
     return new BuilderSingularGuavaListsSetsBuilder<T>();

test/transform/resource/after-ecj/BuilderSingularGuavaMaps.java

@@ -10,10 +10,10 @@ import lombok.Singular;
     @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder() {
       super();
     }
-    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> battleaxe(K battleaxe$key, V battleaxe$value) {
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> battleaxe(K key, V value) {
       if ((this.battleaxes == null))
           this.battleaxes = com.google.common.collect.ImmutableMap.builder();
-      this.battleaxes.put(battleaxe$key, battleaxe$value);
+      this.battleaxes.put(key, value);
       return this;
     }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> battleaxes(java.util.Map<? extends K, ? extends V> battleaxes) {
@@ -22,10 +22,14 @@ import lombok.Singular;
       this.battleaxes.putAll(battleaxes);
       return this;
     }
-    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> vertex(Integer vertex$key, V vertex$value) {
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> clearBattleaxes() {
+      this.battleaxes = null;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> vertex(Integer key, V value) {
       if ((this.vertices == null))
           this.vertices = com.google.common.collect.ImmutableSortedMap.naturalOrder();
-      this.vertices.put(vertex$key, vertex$value);
+      this.vertices.put(key, value);
       return this;
     }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> vertices(java.util.Map<? extends Integer, ? extends V> vertices) {
@@ -34,10 +38,14 @@ import lombok.Singular;
       this.vertices.putAll(vertices);
       return this;
     }
-    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> rawMap(java.lang.Object rawMap$key, java.lang.Object rawMap$value) {
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> clearVertices() {
+      this.vertices = null;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> rawMap(java.lang.Object key, java.lang.Object value) {
       if ((this.rawMap == null))
           this.rawMap = com.google.common.collect.ImmutableBiMap.builder();
-      this.rawMap.put(rawMap$key, rawMap$value);
+      this.rawMap.put(key, value);
       return this;
     }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> rawMap(java.util.Map<?, ?> rawMap) {
@@ -46,6 +54,10 @@ import lombok.Singular;
       this.rawMap.putAll(rawMap);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMapsBuilder<K, V> clearRawMap() {
+      this.rawMap = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularGuavaMaps<K, V> build() {
       com.google.common.collect.ImmutableMap<K, V> battleaxes = ((this.battleaxes == null) ? com.google.common.collect.ImmutableMap.<K, V>of() : this.battleaxes.build());
       com.google.common.collect.ImmutableSortedMap<Integer, V> vertices = ((this.vertices == null) ? com.google.common.collect.ImmutableSortedMap.<Integer, V>of() : this.vertices.build());

test/transform/resource/after-ecj/BuilderSingularLists.java

@@ -22,6 +22,11 @@ import lombok.Singular;
       this.children.addAll(children);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularListsBuilder<T> clearChildren() {
+      if ((this.children != null))
+          this.children.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularListsBuilder<T> scarf(Number scarf) {
       if ((this.scarves == null))
           this.scarves = new java.util.ArrayList<Number>();
@@ -34,6 +39,11 @@ import lombok.Singular;
       this.scarves.addAll(scarves);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularListsBuilder<T> clearScarves() {
+      if ((this.scarves != null))
+          this.scarves.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularListsBuilder<T> rawList(java.lang.Object rawList) {
       if ((this.rawList == null))
           this.rawList = new java.util.ArrayList<java.lang.Object>();
@@ -46,6 +56,11 @@ import lombok.Singular;
       this.rawList.addAll(rawList);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularListsBuilder<T> clearRawList() {
+      if ((this.rawList != null))
+          this.rawList.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularLists<T> build() {
       java.util.List<T> children;
       switch (((this.children == null) ? 0 : this.children.size())) {

test/transform/resource/after-ecj/BuilderSingularMaps.java

@@ -37,6 +37,14 @@ import lombok.Singular;
         }
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> clearWomen() {
+      if ((this.women$key != null))
+          {
+            this.women$key.clear();
+            this.women$value.clear();
+          }
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> man(K manKey, Number manValue) {
       if ((this.men$key == null))
           {
@@ -60,6 +68,14 @@ import lombok.Singular;
         }
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> clearMen() {
+      if ((this.men$key != null))
+          {
+            this.men$key.clear();
+            this.men$value.clear();
+          }
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> rawMap(java.lang.Object rawMapKey, java.lang.Object rawMapValue) {
       if ((this.rawMap$key == null))
           {
@@ -83,6 +99,14 @@ import lombok.Singular;
         }
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> clearRawMap() {
+      if ((this.rawMap$key != null))
+          {
+            this.rawMap$key.clear();
+            this.rawMap$value.clear();
+          }
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> stringMap(String stringMapKey, V stringMapValue) {
       if ((this.stringMap$key == null))
           {
@@ -106,6 +130,14 @@ import lombok.Singular;
         }
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMapsBuilder<K, V> clearStringMap() {
+      if ((this.stringMap$key != null))
+          {
+            this.stringMap$key.clear();
+            this.stringMap$value.clear();
+          }
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularMaps<K, V> build() {
       java.util.Map<K, V> women;
       switch (((this.women$key == null) ? 0 : this.women$key.size())) {

test/transform/resource/after-ecj/BuilderSingularNoAuto.java

@@ -20,6 +20,11 @@ import lombok.Singular;
       this.things.addAll(things);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAutoBuilder clearThings() {
+      if ((this.things != null))
+          this.things.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAutoBuilder widget(String widget) {
       if ((this.widgets == null))
           this.widgets = new java.util.ArrayList<String>();
@@ -32,6 +37,11 @@ import lombok.Singular;
       this.widgets.addAll(widgets);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAutoBuilder clearWidgets() {
+      if ((this.widgets != null))
+          this.widgets.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAutoBuilder items(String items) {
       if ((this.items == null))
           this.items = new java.util.ArrayList<String>();
@@ -44,6 +54,11 @@ import lombok.Singular;
       this.items.addAll(items);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAutoBuilder clearItems() {
+      if ((this.items != null))
+          this.items.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularNoAuto build() {
       java.util.List<String> things;
       switch (((this.things == null) ? 0 : this.things.size())) {

test/transform/resource/after-ecj/BuilderSingularRedirectToGuava.java

@@ -22,10 +22,14 @@ import lombok.Singular;
       this.dangerMice.addAll(dangerMice);
       return this;
     }
-    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder thing(Integer thing$key, Number thing$value) {
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder clearDangerMice() {
+      this.dangerMice = null;
+      return this;
+    }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder thing(Integer key, Number value) {
       if ((this.things == null))
           this.things = com.google.common.collect.ImmutableSortedMap.naturalOrder();
-      this.things.put(thing$key, thing$value);
+      this.things.put(key, value);
       return this;
     }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder things(java.util.Map<? extends Integer, ? extends Number> things) {
@@ -34,6 +38,10 @@ import lombok.Singular;
       this.things.putAll(things);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder clearThings() {
+      this.things = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder doohickey(Class<?> doohickey) {
       if ((this.doohickeys == null))
           this.doohickeys = com.google.common.collect.ImmutableList.builder();
@@ -46,6 +54,10 @@ import lombok.Singular;
       this.doohickeys.addAll(doohickeys);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuavaBuilder clearDoohickeys() {
+      this.doohickeys = null;
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularRedirectToGuava build() {
       java.util.Set<String> dangerMice = ((this.dangerMice == null) ? com.google.common.collect.ImmutableSet.<String>of() : this.dangerMice.build());
       java.util.NavigableMap<Integer, Number> things = ((this.things == null) ? com.google.common.collect.ImmutableSortedMap.<Integer, Number>of() : this.things.build());

test/transform/resource/after-ecj/BuilderSingularSets.java

@@ -22,6 +22,11 @@ import lombok.Singular;
       this.dangerMice.addAll(dangerMice);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> clearDangerMice() {
+      if ((this.dangerMice != null))
+          this.dangerMice.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> octopus(Number octopus) {
       if ((this.octopodes == null))
           this.octopodes = new java.util.ArrayList<Number>();
@@ -34,6 +39,11 @@ import lombok.Singular;
       this.octopodes.addAll(octopodes);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> clearOctopodes() {
+      if ((this.octopodes != null))
+          this.octopodes.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> rawSet(java.lang.Object rawSet) {
       if ((this.rawSet == null))
           this.rawSet = new java.util.ArrayList<java.lang.Object>();
@@ -46,6 +56,11 @@ import lombok.Singular;
       this.rawSet.addAll(rawSet);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> clearRawSet() {
+      if ((this.rawSet != null))
+          this.rawSet.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> stringSet(String stringSet) {
       if ((this.stringSet == null))
           this.stringSet = new java.util.ArrayList<String>();
@@ -58,6 +73,11 @@ import lombok.Singular;
       this.stringSet.addAll(stringSet);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSetsBuilder<T> clearStringSet() {
+      if ((this.stringSet != null))
+          this.stringSet.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderSingularSets<T> build() {
       java.util.Set<T> dangerMice;
       switch (((this.dangerMice == null) ? 0 : this.dangerMice.size())) {

test/transform/resource/after-ecj/BuilderWithToBuilder.java

@@ -33,6 +33,11 @@ import lombok.Builder;
       this.bars.addAll(bars);
       return this;
     }
+    public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderWithToBuilderBuilder<T> clearBars() {
+      if ((this.bars != null))
+          this.bars.clear();
+      return this;
+    }
     public @java.lang.SuppressWarnings("all") @javax.annotation.Generated("lombok") BuilderWithToBuilder<T> build() {
       java.util.List<T> bars;
       switch (((this.bars == null) ? 0 : this.bars.size())) {

test/transform/resource/before/BuilderInstanceMethod.java

@@ -0,0 +1,8 @@
+import java.util.List;
+
+class BuilderInstanceMethod<T> {
+	@lombok.Builder
+	public String create(int show, final int yes, List<T> also, int $andMe) {
+		return "" + show + yes + also + $andMe;
+	}
+}

test/transform/resource/before/BuilderSingularGuavaListsSets.java

@@ -2,6 +2,7 @@ import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.ImmutableSortedSet;
+import com.google.common.collect.ImmutableTable;
 
 import lombok.Singular;
 
@@ -11,4 +12,5 @@ class BuilderSingularGuavaListsSets<T> {
 	@Singular private ImmutableCollection<? extends Number> frogs;
 	@SuppressWarnings("all") @Singular("rawSet") private ImmutableSet rawSet;
 	@Singular private ImmutableSortedSet<String> passes;
+	@Singular private ImmutableTable<? extends Number, ? extends Number, String> users;
 }

usage_examples/BuilderExample_post.jpage

@@ -51,6 +51,14 @@ public class BuilderExample {
 			return this;
 		}
 		
+		public BuilderExampleBuilder clearOccupations() {
+			if (this.occupations != null) {
+				this.occupations.clear();
+			}
+			
+			return this;
+		}
+
 		public BuilderExample build() {
 			// complicated switch statement to produce a compact properly sized immutable set omitted.
 			// go to https://projectlombok.org/features/Singular-snippet.html to see it.

website/features/Builder.html

@@ -18,7 +18,8 @@
 				<code>@Builder</code> was introduced as experimental feature in lombok v0.12.0.
 			</p><p>
 				<code>@Builder</code> gained <code>@Singular</code> support and was promoted to the main <code>lombok</code> package since lombok v1.16.0.
-			</p>
+			</p><p>
+				<code>@Builder</code> with <code>@Singular</code> adds a clear method since lombok v1.16.8.
 		</div>
 		<div class="overview">
 			<h3>Overview</h3>
@@ -28,16 +29,16 @@
 			<code>@Builder</code> lets you automatically produce the code required to have your class be instantiable with code such as:<br />
 			<code>Person.builder().name("Adam Savage").city("San Francisco").job("Mythbusters").job("Unchained Reaction").build();</code>
 			</p><p>
-			<code>@Builder</code> can be placed on a class, or on a constructor, or on a static method. While the "on a class" and "on a constructor"
-			mode are the most common use-case, <code>@Builder</code> is most easily explained with the "static method" use-case.
+			<code>@Builder</code> can be placed on a class, or on a constructor, or on a method. While the "on a class" and "on a constructor"
+			mode are the most common use-case, <code>@Builder</code> is most easily explained with the "method" use-case.
 			</p><p>
-			A static method annotated with <code>@Builder</code> (from now on called the <em>target</em>)  causes the following 7 things to be generated:<ul>
-			<li>An inner static class named <code><em>Foo</em>Builder</code>, with the same type arguments as the static method (called the <em>builder</em>).</li>
+			A method annotated with <code>@Builder</code> (from now on called the <em>target</em>)  causes the following 7 things to be generated:<ul>
+			<li>An inner class named <code><em>Foo</em>Builder</code>, with the same type arguments as the method (called the <em>builder</em>).</li>
 			<li>In the <em>builder</em>: One private non-static non-final field for each parameter of the <em>target</em>.</li>
 			<li>In the <em>builder</em>: A package private no-args empty constructor.</li>
 			<li>In the <em>builder</em>: A 'setter'-like method for each parameter of the <em>target</em>: It has the same type as that parameter and the same name.
 				It returns the builder itself, so that the setter calls can be chained, as in the above example.</li>
-			<li>In the <em>builder</em>: A <code>build()</code> method which calls the static method, passing in each field. It returns the same type that the
+			<li>In the <em>builder</em>: A <code>build()</code> method which calls the method, passing in each field. It returns the same type that the
 				<em>target</em> returns.</li>
 			<li>In the <em>builder</em>: A sensible <code>toString()</code> implementation.</li>
 			<li>In the class containing the <em>target</em>: A static <code>builder()</code> method, which creates a new instance of the <em>builder</em>.</li>
@@ -51,7 +52,7 @@
 			element to the list. For example: <code>Person.builder().job("Mythbusters").job("Unchained Reaction").build();</code> would result in the <code>List&lt;String&gt; jobs</code>
 			field to have 2 strings in it. To get this behaviour, the field/parameter needs to be annotated with <code>@Singular</code>. The feature has <a href="#singular">its own documentation</a>.
 			</p><p>
-			Now that the "static method" mode is clear, putting a <code>@Builder</code> annotation on a constructor functions similarly; effectively,
+			Now that the "method" mode is clear, putting a <code>@Builder</code> annotation on a constructor functions similarly; effectively,
 			constructors are just static methods that have a special syntax to invoke them: Their 'return type' is the class they construct, and their
 			type parameters are the same as the type parameters of the class itself.
 			</p><p>
@@ -63,8 +64,8 @@
 			</p><p>
 			The name of the builder class is <code><em>Foobar</em>Builder</code>, where <em>Foobar</em> is the simplified, title-cased form of the return type of the 
 			<em>target</em> - that is, the name of your type for <code>@Builder</code> on constructors and types, and the name of the return type for <code>@Builder</code>
-			on static methods. For example, if <code>@Builder</code> is applied to a class named <code>com.yoyodyne.FancyList&lt;T&gt;</code>, then the builder name will be
-			<code>FancyListBuilder&lt;T&gt;</code>. If <code>@Builder</code> is applied to a static method that returns <code>void</code>, the builder will be named
+			on methods. For example, if <code>@Builder</code> is applied to a class named <code>com.yoyodyne.FancyList&lt;T&gt;</code>, then the builder name will be
+			<code>FancyListBuilder&lt;T&gt;</code>. If <code>@Builder</code> is applied to a method that returns <code>void</code>, the builder will be named
 			<code>VoidBuilder</code>.
 			</p><p>
 			The configurable aspects of builder are:<ul>
@@ -80,13 +81,13 @@
 		<div class="overview">
 			<h3><a name="singular">@Singular</a></h3>
 			<p>
-				By annotating one of the parameters (if annotating a static method or constructor with <code>@Builder</code>) or fields (if annotating a class with <code>@Builder</code>) with the
+				By annotating one of the parameters (if annotating a method or constructor with <code>@Builder</code>) or fields (if annotating a class with <code>@Builder</code>) with the
 				<code>@Singular</code> annotation, lombok will treat that builder node as a collection, and it generates 2 'adder' methods instead of a 'setter' method. One which adds a single element to the collection, and one
-				which adds all elements of another collection to the collection. No setter to just set the collection (replacing whatever was already added) will be generated. These 'singular' builders
+				which adds all elements of another collection to the collection. No setter to just set the collection (replacing whatever was already added) will be generated. A 'clear' method is also generated. These 'singular' builders
 				are very complicated in order to guarantee the following properties:
 				<ul>
 				<li>When invoking <code>build()</code>, the produced collection will be immutable.</li>
-				<li>Calling one of the 'adder' methods after invoking <code>build()</code> does not modify any already generated objects, and, if <code>build()</code> is later called again, another collection with all the elements added since the creation of the builder is generated.</li>
+				<li>Calling one of the 'adder' methods, or the 'clear' method, after invoking <code>build()</code> does not modify any already generated objects, and, if <code>build()</code> is later called again, another collection with all the elements added since the creation of the builder is generated.</li>
 				<li>The produced collection will be compacted to the smallest feasible format while remaining efficient.</li>
 				</ul>
 			</p><p>
@@ -101,6 +102,7 @@
 						<li><code>ImmutableCollection</code> and <code>ImmutableList</code> (backed by the builder feature of <code>ImmutableList</code>).</li>
 						<li><code>ImmutableSet</code> and <code>ImmutableSortedSet</code> (backed by the builder feature of those types).</li>
 						<li><code>ImmutableMap</code>, <code>ImmutableBiMap</code>, and <code>ImmutableSortedMap</code> (backed by the builder feature of those types).</li>
+						<li><code>ImmutableTable</code> (backed by the builder feature of <code>ImmutableTable</code>).</li>
 					</ul></li>
 				</ul>
 			</p><p>