Problems with The first project using JFinal (The return type is incompatible with JspSourceDependent. getDependants (), dependants

Problems with The first project using JFinal (The return type is incompatible with JspSourceDependent. getDependants (), dependants

April 08 4:35:34 org. apache. catalina. core. ApplicationDispatcher invoke
Severe: Servlet. service () for servlet jsp threw exception
Org. apache. jasper. JasperException: Unable to compile class for JSP:

An error occurred at line: [39] in the generated java file: [D: \ Tomcat 8.0 \ work \ Catalina \ localhost \ xiaomudu \ org \ apache \ jsp \ index_jsp.java]
The return type is incompatible with JspSourceDependent. getDependants ()

The reason is: In the jetty-server-8.1.8.jar, the returned value of getDependants is List <String> type,

The returned type of Tomcat 8.0 is Map <java. lang. String, java. lang. Long>.

The two are inconsistent.

Solution: Delete the jar package, that is, the jetty-server-8.1.8.jar.