If the JVM is started with -Dlombok.disable, lombok is disabled entirely for both eclipse/ecj and javac operations.

doc/changelog.markdown

@@ -1,6 +1,9 @@
 Lombok Changelog
 ----------------
 
+### v0.11.5 (Edgy Guinea Pig)
+* FEATURE: Lombok can be disabled entirely for any given compile run by using JVM switch `-Dlombok.disable`. This might be useful for code style checkers and such.
+
 ### v0.11.4 (August 13th, 2012)
 * FEATURE: {Experimental} `@Value`, `@Wither` and `@FieldDefaults` are now available. These are a lot like `@Data` but geared towards immutable classes. [Documentation on @Value](http://projectlombok.org/features/experimental/Value.html), [Documentation on @Wither](http://projectlombok.org/features/experimental/Wither.html) and [Documentation on @FieldDefaults](http://projectlombok.org/features/experimental/FieldDefaults.html).
 * BUGFIX: Eclipse would throw an OOME if using `@ExtensionMethod`. [Issue #390](http://code.google.com/p/projectlombok/issues/detail?id=390)

src/core/lombok/eclipse/TransformEclipseAST.java

@@ -62,25 +62,31 @@ public class TransformEclipseAST {
 		Field f = null;
 		HandlerLibrary h = null;
 		
-		try {
-			h = HandlerLibrary.load();
-		} catch (Throwable t) {
-			try {
-				error(null, "Problem initializing lombok", t);
-			} catch (Throwable t2) {
-				System.err.println("Problem initializing lombok");
-				t.printStackTrace();
-			}
+		if (System.getProperty("lombok.disable") != null) {
 			disableLombok = true;
+			astCacheField = null;
+			handlers = null;
+		} else {
+			try {
+				h = HandlerLibrary.load();
+			} catch (Throwable t) {
+				try {
+					error(null, "Problem initializing lombok", t);
+				} catch (Throwable t2) {
+					System.err.println("Problem initializing lombok");
+					t.printStackTrace();
+				}
+				disableLombok = true;
+			}
+			try {
+				f = CompilationUnitDeclaration.class.getDeclaredField("$lombokAST");
+			} catch (Throwable t) {
+				//I guess we're in an ecj environment; we'll just not cache stuff then.
+			}
+			
+			astCacheField = f;
+			handlers = h;
 		}
-		try {
-			f = CompilationUnitDeclaration.class.getDeclaredField("$lombokAST");
-		} catch (Throwable t) {
-			//I guess we're in an ecj environment; we'll just not cache stuff then.
-		}
-		
-		astCacheField = f;
-		handlers = h;
 	}
 	
 	public static void transform_swapped(CompilationUnitDeclaration ast, Parser parser) {

src/core/lombok/javac/apt/Processor.java

@@ -75,10 +75,16 @@ public class Processor extends AbstractProcessor {
 	private JavacProcessingEnvironment processingEnv;
 	private JavacTransformer transformer;
 	private Trees trees;
+	private boolean lombokDisabled = false;
 	
 	/** {@inheritDoc} */
 	@Override public void init(ProcessingEnvironment procEnv) {
 		super.init(procEnv);
+		if (System.getProperty("lombok.disable") != null) {
+			lombokDisabled = true;
+			return;
+		}
+		
 		this.processingEnv = (JavacProcessingEnvironment) procEnv;
 		placePostCompileAndDontMakeForceRoundDummiesHook();
 		transformer = new JavacTransformer(procEnv.getMessager());
@@ -223,6 +229,7 @@ public class Processor extends AbstractProcessor {
 	
 	/** {@inheritDoc} */
 	@Override public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+		if (lombokDisabled) return false;
 		if (roundEnv.processingOver()) return false;
 		
 		// We have: A sorted set of all priority levels: 'priorityLevels'