java.util.regex.Matcher.appendReplacement(Matcher.java:857) : IllegalArgumentException

threw exception

java.lang.IllegalArgumentException: Illegal group reference

    at java.util.regex.Matcher.appendReplacement(Matcher.java:857)

    at com.famposo.web.lib.HTML5TemplateEnigne.parse(HTML5TemplateEnigne.java:200)

    at com.famposo.web.view.Page.index(Page.java:36)

 

Solution: 

 

 

 matcher.appendReplacement(sb, text);

replace with 

m.appendReplacement(sb, Matcher.quoteReplacement(text));

it works 

i found this ref here 

 https://www.javamex.com/tutorials/regular_expressions/search_replace_loop.shtml