Fixes #3564 - Duplicate StringBuffer calls to StringBuilder calls

Signed-off-by: Rob Stryker <rob@oxbeef.net>

src/core/lombok/core/configuration/ConfigurationFile.java

@@ -183,7 +183,7 @@ public abstract class ConfigurationFile {
 		
 		private static String replaceEnvironmentVariables(String fileName) {
 			int start = 0;
-			StringBuffer result = new StringBuffer();
+			StringBuilder result = new StringBuilder();
 			if (fileName.startsWith("~")) {
 				start = 1;
 				result.append(System.getProperty("user.home", "~"));

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

@@ -1331,9 +1331,7 @@ public class EclipseHandlerUtil {
 				expressions = new Expression[] { rhs };
 			}
 			if (expressions != null) for (Expression ex : expressions) {
-				StringBuffer sb = new StringBuffer();
-				ex.print(0, sb);
-				raws.add(sb.toString());
+				raws.add(ex.toString()); 
 				expressionValues.add(ex);
 				guesses.add(calculateValue(ex));
 			}

src/eclipseAgent/lombok/eclipse/agent/EclipsePatcher.java

@@ -986,6 +986,13 @@ public class EclipsePatcher implements AgentLauncher.AgentLaunchable {
 				.requestExtra(StackRequest.PARAM1)
 				.build());
 		
+		sm.addScript(ScriptBuilder.replaceMethodCall()
+				.target(new MethodTarget("org.eclipse.jdt.internal.compiler.ast.TypeDeclaration", "printBody", "java.lang.StringBuilder", "int", "java.lang.StringBuilder"))
+				.methodToReplace(new Hook("org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration", "print", "java.lang.StringBuilder", "int", "java.lang.StringBuilder"))
+				.replacementMethod(new Hook("lombok.launch.PatchFixesHider$Javadoc", "printMethod", "java.lang.StringBuilder", "org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration", "int", "java.lang.StringBuilder", "org.eclipse.jdt.internal.compiler.ast.TypeDeclaration"))
+				.requestExtra(StackRequest.THIS)
+				.build());
+
 		sm.addScript(ScriptBuilder.replaceMethodCall()
 				.target(new MethodTarget("org.eclipse.jdt.internal.compiler.ast.TypeDeclaration", "printBody", "java.lang.StringBuffer", "int", "java.lang.StringBuffer"))
 				.methodToReplace(new Hook("org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration", "print", "java.lang.StringBuffer", "int", "java.lang.StringBuffer"))
@@ -1050,7 +1057,7 @@ public class EclipsePatcher implements AgentLauncher.AgentLaunchable {
 		sm.addScriptIfWitness(new String[] {"lombok/transform/TestWithEcj"}, ScriptBuilder.exitEarly()
 				.target(new MethodTarget("org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration", "print"))
 				.decisionMethod(new Hook("lombok.launch.PatchFixesHider$Tests", "isImplicitCanonicalConstructor", "boolean", "org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration", "java.lang.Object"))
-				.valueMethod(new Hook("lombok.launch.PatchFixesHider$Tests", "returnStringBuffer", "java.lang.StringBuffer", "java.lang.Object", "java.lang.StringBuffer"))
+				.valueMethod(new Hook("lombok.launch.PatchFixesHider$Tests", "returnStringBuilder", "java.lang.StringBuilder", "java.lang.Object", "java.lang.StringBuilder"))
 				.request(StackRequest.THIS, StackRequest.PARAM2)
 				.transplant()
 				.build());

src/eclipseAgent/lombok/eclipse/agent/PatchJavadoc.java

@@ -65,6 +65,21 @@ public class PatchJavadoc {
 		return null;
 	}
 	
+	public static StringBuilder printMethod(AbstractMethodDeclaration methodDeclaration, Integer tab, StringBuilder output, TypeDeclaration type) {
+		Map<String, String> docs = CompilationUnit_javadoc.get(methodDeclaration.compilationResult.compilationUnit);
+		if (docs != null) {
+			String signature = EclipseHandlerUtil.getSignature(type, methodDeclaration);
+			String rawJavadoc = docs.get(signature);
+			if (rawJavadoc != null) {
+				for (String line : rawJavadoc.split("\r?\n")) {
+					ASTNode.printIndent(tab, output).append(line).append("\n");
+				}
+			}
+		}
+		return methodDeclaration.print(tab, output);
+	}
+	
+	
 	public static StringBuffer printMethod(AbstractMethodDeclaration methodDeclaration, Integer tab, StringBuffer output, TypeDeclaration type) {
 		Map<String, String> docs = CompilationUnit_javadoc.get(methodDeclaration.compilationResult.compilationUnit);
 		if (docs != null) {

src/eclipseAgent/lombok/launch/PatchFixesHider.java

@@ -427,20 +427,28 @@ final class PatchFixesHider {
 	/** Contains patch code to support Javadoc for generated methods */
 	public static final class Javadoc {
 		private static final Method GET_HTML;
-		private static final Method PRINT_METHOD;
+		private static final Method PRINT_METHOD_OLD;
+		private static final Method PRINT_METHOD_NEW;
 		
 		static {
 			Class<?> shadowed = Util.shadowLoadClass("lombok.eclipse.agent.PatchJavadoc");
 			GET_HTML = Util.findMethod(shadowed, "getHTMLContentFromSource", String.class, Object.class);
-			PRINT_METHOD = Util.findMethod(shadowed, "printMethod", AbstractMethodDeclaration.class, Integer.class, StringBuffer.class, TypeDeclaration.class);
+			try {
+				PRINT_METHOD_NEW = Util.findMethod(shadowed, "printMethod", AbstractMethodDeclaration.class, Integer.class, StringBuilder.class, TypeDeclaration.class);
+			} catch( RuntimeException e ) {
+				PRINT_METHOD_OLD = Util.findMethod(shadowed, "printMethod", AbstractMethodDeclaration.class, Integer.class, StringBuffer.class, TypeDeclaration.class);
+			}
 		}
 		
 		public static String getHTMLContentFromSource(String original, IJavaElement member) {
 			return (String) Util.invokeMethod(GET_HTML, original, member);
 		}
 		
+		public static StringBuilder printMethod(AbstractMethodDeclaration methodDeclaration, int tab, StringBuilder output, TypeDeclaration type) {
+				return (StringBuilder) Util.invokeMethod(PRINT_METHOD_NEW, methodDeclaration, tab, output, type);
+		}
 		public static StringBuffer printMethod(AbstractMethodDeclaration methodDeclaration, int tab, StringBuffer output, TypeDeclaration type) {
-			return (StringBuffer) Util.invokeMethod(PRINT_METHOD, methodDeclaration, tab, output, type);
+			return (StringBuffer) Util.invokeMethod(PRINT_METHOD_OLD, methodDeclaration, tab, output, type);
 		}
 	}
 	
@@ -977,7 +985,11 @@ final class PatchFixesHider {
 			return (method.bits & IsCanonicalConstructor) != 0 && (method.bits & IsImplicit) != 0;
 		}
 		
-		public static StringBuffer returnStringBuffer(Object p1, StringBuffer buffer) {
+		public static StringBuilder returnStringBuffer(Object p1, StringBuffer buffer) {
+			return buffer;
+		}
+
+		public static StringBuilder returnStringBuilder(Object p1, StringBuilder buffer) {
 			return buffer;
 		}
 	}