完整错误内容如下：

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2018-01-13 10:31:28.447:WARN:oejs.ServletHandler:Error for /admin/article

java.lang.IllegalAccessError: class sun.reflect.GeneratedMethodAccessor1 cannot access its superclass sun.reflect.MethodAccessorImpl

at sun.misc.Unsafe.defineClass(Native Method)

at sun.reflect.ClassDefiner.defineClass(ClassDefiner.java:63)

at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:399)

at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:394)

at java.security.AccessController.doPrivileged(Native Method)

at sun.reflect.MethodAccessorGenerator.generate(MethodAccessorGenerator.java:393)

at sun.reflect.MethodAccessorGenerator.generateMethod(MethodAccessorGenerator.java:75)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:53)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at com.jfinal.template.expr.ast.MethodInfo.invoke(MethodInfo.java:48)

at com.jfinal.template.expr.ast.Method.eval(Method.java:82)

at com.jfinal.template.stat.ast.Output.exec(Output.java:49)

at com.jfinal.template.stat.ast.StatList.exec(StatList.java:68)

at com.jfinal.template.stat.ast.Define.call(Define.java:105)

at com.jfinal.template.stat.ast.Call.exec(Call.java:49)

at com.jfinal.template.stat.ast.StatList.exec(StatList.java:68)

at com.jfinal.template.Template.render(Template.java:55)

at com.jfinal.render.TemplateRender.render(TemplateRender.java:60)

at com.jfinal.core.ActionHandler.handle(ActionHandler.java:108)

at com.young.jblog.handlers.ResourceHandler.handle(ResourceHandler.java:12)

at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:73)

at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)

at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)

at org.eclipse.jetty.server.Server.handle(Server.java:365)

at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)

at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)

at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)

at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)

at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)

at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)

at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)

at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)

at java.lang.Thread.run(Thread.java:748)