Issue with Extract Zip Plugin

Question

I am using Extract Zip Plugin in one my process models, I have some files in the system named as 1)test1 , 2)test2 .. 
 When I passed the files to that smart service it was throwing an error like Unmatched closing ')' near index 0 at 1)test ^. 
 When I renamed the files to 1.test1 .. the plugin is getting executed successfully. 
 Any Insight on this how can we achieve without renaming the files?

vishnuv · Answer

Hi, 
Are you using regexmatch function ? If so you need to take care of close parenthesis before passing to function, for which you need to use escape character '\'. 
 
Thanks.