If at least one of the clone fragments is inside an enum or annotatio…

…n type declaration,

a precondition violation is added to the RefactoringStatus.

This is a fix for case 7272|1-2 found in project EMF-2.4.1 (CCFinder results)
org.eclipse.emf.ecore.resource.impl.BinaryResourceImpl.get(EStructuralFeature):FeatureKind  lines 290-309
org.eclipse.emf.ecore.resource.impl.BinaryResourceImpl.get(EStructuralFeature):FeatureKind  lines 270-289

src/gr/uom/java/jdeodorant/refactoring/manipulators/ExtractCloneRefactoring.java

@@ -4941,6 +4941,13 @@ public RefactoringStatus checkFinalConditions(IProgressMonitor pm)
 			throws CoreException, OperationCanceledException {
 		try {
 			pm.beginTask("Checking preconditions...", 2);
+			AbstractMethodDeclaration methodObject1 = mapper.getPDG1().getMethod();
+			AbstractMethodDeclaration methodObject2 = mapper.getPDG2().getMethod();
+			MethodDeclaration methodDeclaration1 = methodObject1.getMethodDeclaration();
+			MethodDeclaration methodDeclaration2 = methodObject2.getMethodDeclaration();
+			if(!(methodDeclaration1.getParent() instanceof TypeDeclaration) || !(methodDeclaration2.getParent() instanceof TypeDeclaration)) { 
+				status.merge(RefactoringStatus.createErrorStatus("At least one of the clone fragments is inside an enum or annotation type declaration"));
+			}
 			for(PreconditionViolation violation : mapper.getPreconditionViolations()) {
 				if(violation instanceof StatementPreconditionViolation) {
 					StatementPreconditionViolation statementViolation = (StatementPreconditionViolation)violation;