@Override
    public boolean execute(@NotNull PsiClass element) {
      final PsiMethod existingImplementation = findExistingImplementation(element, myMethod);
      if (existingImplementation != null && !existingImplementation.hasModifierProperty(PsiModifier.ABSTRACT)) {
        myHasExistingImplementations = true;
      }
      else if (existingImplementation == null) {
        myHasMissingImplementations = true;
      }
      if (myHasMissingImplementations && myHasExistingImplementations) return false;
      return true;
    }
@Override
    public boolean execute(@NotNull PsiClass element)