Pattern Syntax Exception is thrown when you have "*" in any String and you want to replace "*" with something else.
This exception is likely when you use method java.lang.String.replaceAll().
There are two solutions to this problem.
Solution 1: escape all metacharacters and use replaceAll().
Solution 2: I prefer this solution over solution 1. This method reduces most of the work as you don't need to escape any metacharacters.
Just use org.apache.commons.lang.StringUtils
