boolean (PsiClass targetClass, PsiMethod method) { PsiMethod[] targetClassMethods = targetClass.findMethodsByName(method.getName(), true); for (PsiMethod candidate : targetClassMethods) { if (candidate != method && MethodSignatureUtil.areSignaturesEqual(method.getSignature(PsiSubstitutor.EMPTY), candidate.getSignature(PsiSubstitutor.EMPTY))) { return true; } } return false; }