group statements based on comment, only if method bodies differ (#976)

jabgui/src/test/java/org/jabref/gui/externalfiles/ImportHandlerTest.java

Author: tsantalis

src/main/java/gr/uom/java/xmi/decomposition/UMLOperationBodyMapper.java

@@ -702,7 +702,8 @@ else if(streamAPIStatements1.size() > 0 && streamAPIStatements2.size() == 0) {
 			boolean isomorphic = isomorphicCompositeStructure(innerNodes1, innerNodes2);
 			//check if it is possible to group statements based on comments, useful for junit tests
 			if((operation1.hasTestAnnotation() || operation1.hasDataPointsAnnotation() || operation1.hasDataProviderAnnotation() || operation1.hasParametersAnnotation()) &&
-					(operation2.hasTestAnnotation() || operation2.hasDataPointsAnnotation() || operation2.hasDataProviderAnnotation() || operation2.hasParametersAnnotation())) {
+					(operation2.hasTestAnnotation() || operation2.hasDataPointsAnnotation() || operation2.hasDataProviderAnnotation() || operation2.hasParametersAnnotation()) &&
+					operation1.getBodyHashCode() != operation2.getBodyHashCode()) {
 				List<CodeBlockBetweenComments> blocks1 = CodeBlockBetweenComments.generateCodeBlocks(leaves1, operation1);
 				List<CodeBlockBetweenComments> blocks2 = CodeBlockBetweenComments.generateCodeBlocks(leaves2, operation2);
 				if(blocks1.size() <= blocks2.size()) {