#349: no IllegalStateException when method is removed from Sub-Class and Super-Class

Author: siom79

japicmp/src/main/java/japicmp/compat/CompatibilityChanges.java

@@ -382,22 +382,23 @@ public Integer callback(JApiClass superclass, Map<String, JApiClass> classMap, J
 			}
 			if (isNotPrivate(method) && method.getChangeStatus() == JApiChangeStatus.REMOVED) {
 				List<Integer> returnValues = new ArrayList<>();
-				forAllSuperclasses(jApiClass, classMap, returnValues, new OnSuperclassCallback<Integer>() {
-					@Override
-					public Integer callback(JApiClass superclass, Map<String, JApiClass> classMap, JApiChangeStatus changeStatusOfSuperclass) {
-						for (JApiMethod superMethod : superclass.getMethods()) {
-							if (areMatching(superMethod, method)) {
-								if (method.getFinalModifier().getOldModifier().get() == FinalModifier.NON_FINAL
-										&& superMethod.getFinalModifier().getNewModifier().get() == FinalModifier.FINAL) {
-									return 1;
-								}
+				forAllSuperclasses(jApiClass, classMap, returnValues, (superclass, classMap1, changeStatusOfSuperclass) -> {
+					for (JApiMethod superMethod : superclass.getMethods()) {
+						if (areMatching(superMethod, method)) {
+							if (method.getFinalModifier().getOldModifier().isPresent()
+									&& method.getFinalModifier().getOldModifier().get() == FinalModifier.NON_FINAL
+									&& superMethod.getFinalModifier().getNewModifier().isPresent()
+									&& superMethod.getFinalModifier().getNewModifier().get() == FinalModifier.FINAL) {
+								addCompatibilityChange(superMethod, JApiCompatibilityChange.METHOD_NOW_FINAL);
+								return 1;
 							}
 						}
-						return 0;
 					}
+					return 0;
 				});
 				if (returnValues.stream().anyMatch(value -> value == 1)) {
 					addCompatibilityChange(method, JApiCompatibilityChange.METHOD_NOW_FINAL);
+					addCompatibilityChange(method, JApiCompatibilityChange.METHOD_MOVED_TO_SUPERCLASS);
 				}
 			}
 			// section 13.4.18 of "Java Language Specification" SE7