I see the same behaviour with the same build on a separate, fresh Ubuntu 16.04 system, with JSPWiki in an out of the box state running the default skin. The full stack trace is:
[WARNING] [] [javax.enterprise.web] [tid: _ThreadID=29 _ThreadName=http-listener-1(2)] [timeMillis: 1488401379691] [levelValue: 900] [[ StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception java.lang.IllegalStateException: getWriter() has already been called for this response at org.apache.catalina.connector.Response.getOutputStream(Response.java:746) at org.apache.catalina.connector.ResponseFacade.getOutputStream(ResponseFacade.java:206) at org.apache.wiki.ui.WikiJSPFilter.doFilter(WikiJSPFilter.java:128) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571) at java.lang.Thread.run(Thread.java:745) I'll open a bug report for this. -- Dave Koelmeyer http://blog.davekoelmeyer.co.nz GPG Key ID: 0x238BFF87 On Wed, Mar 1, 2017, at 07:59 AM, Ross, Ed wrote: > The errors are not always as intuitive as one might hope. Check the user > and permissions. > > You can easily deploy to tomcat to see if there are any configuration > issues: > > > You didn't mention what you were upgrading from? > > FWIW - I just upgraded in December - there were a number of pain points > but things seem to work ok. My upgrade was from a Tomcat instance to a > Tomcat running in Docker > > > > -----Original Message----- > From: Dave Koelmeyer [mailto:dave.koelme...@davekoelmeyer.co.nz] > Sent: Tuesday, February 28, 2017 1:46 PM > To: user@jspwiki.apache.org > Subject: IllegalStateException with the latest JSPWiki > > Hi All, > > I've just performed a JSPWiki upgrade using the latest > JSPWiki-2.10.3-SNAPSHOT checked out from Git. I've replaced my existing > WAR file with the newly built WAR and restarted my container. JSPWiki > will then generate the following error when navigating to the base URL: > > The server encountered an internal error that prevented it from > fulfilling this request. > java.lang.IllegalStateException: getWriter() has already been called for > this response > > On other attempts to redeploy the WAR, JSPWiki will apparently start > fine, but the same error is then generated when trying to save user > preferences. > > I'm running Payara Server 4.1.1.161 with JDK 1.8.0_73. The container does > have file-based realm authentication configured, and HTTPS. I'm using the > Haddock template. > > Any ideas? Thanks! > > -- > Dave Koelmeyer > http://blog.davekoelmeyer.co.nz > GPG Key ID: 0x238BFF87 > > This email may contain confidential or privileged material. Use or > disclosure of it by anyone other than the recipient is unauthorized. If > you are not an intended recipient, please delete this email.