fixed Issue 244:

Between javac 1.6 and 1.7 the type of the field JCClassDecl.extending has changed from JCTree to JCExpression, but the method getExtendsClause() still returns a JCTree. So we use this for now.

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

@@ -136,7 +136,7 @@ public class HandleEqualsAndHashCode extends JavacAnnotationHandler<EqualsAndHas
 			}
 		}
 		
-		JCTree extending = ((JCClassDecl)typeNode.get()).extending;
+		JCTree extending = ((JCClassDecl)typeNode.get()).getExtendsClause();
 		if (extending != null) {
 			String p = extending.toString();
 			isDirectDescendantOfObject = p.equals("Object") || p.equals("java.lang.Object");