报错内容：
java.util.regex.PatternSyntaxException: Unexpected internal error near index 1
\
^
at java.util.regex.Pattern.error(Pattern.java:1955)
at java.util.regex.Pattern.compile(Pattern.java:1702)
at java.util.regex.Pattern.(Pattern.java:1351)
at java.util.regex.Pattern.compile(Pattern.java:1028)
at java.lang.String.replaceAll(String.java:2223)
at com.jfinal.ext.kit.ClassSearcher.findjarFiles(ClassSearcher.java:174)
at com.jfinal.ext.kit.ClassSearcher.search(ClassSearcher.java:146)
at com.jfinal.ext.route.AutoBindRoutes.config(AutoBindRoutes.java:74)
at com.jfinal.config.Routes.add(Routes.java:49)
at com.jfinalshop.cfg.JFWebConfig.configRoute(JFWebConfig.java:119)
at com.jfinal.core.Config.configJFinal(Config.java:51)

jfinal ext 很久没有维护和升级了，建议使用后继项目 jfinal ext2:
https://gitee.com/brucezcq/JFinal-ext2

请问怎么解决的？我用的 jfinal ext2