@Override
      public void visitCallExpression(@NotNull PsiCallExpression callExpression) {
        final PsiExpressionList argumentList = callExpression.getArgumentList();
        final PsiMethod method = callExpression.resolveMethod();
        if (method != null && argumentList != null && (method.isConstructor() || NEXT_TOKEN.equals(method.getName()))) {
          final PsiClass stringTokenizer = method.getContainingClass();
          if (stringTokenizer != null && STRING_TOKENIZER.equals(stringTokenizer.getQualifiedName())) {
            final PsiExpression[] arguments = argumentList.getExpressions();
            final int argCount = arguments.length;
            if (method.isConstructor()) {
              if (argCount == 2 || argCount == 3) {
                hasArgumentDuplicates(arguments[1], holder);
              }
            }
            else {
              if (argCount == 1) {
                hasArgumentDuplicates(arguments[0], holder);
              }
            }
          }
        }
      }
@Override
      public void visitCallExpression(@NotNull PsiCallExpression callExpression)