Reports calls to String.replaceAll() or String.split() where the first argument is a single regex meta character argument.

The regex meta characters are one of .$|()[{^?*+\. They have a special meaning in regular expressions. For example, calling "ab.cd".replaceAll(".", "-") produces "-----", because the dot matches any character. Most likely the escaped variant "\\." was intended instead.

Example:


  s.replaceAll(".", "-");

After the quick-fix is applied:


  s.replaceAll("\\.", "-");