08:34:55,989 ERROR [jsp:165] java.lang.ClassCastException: com.icesoft.faces.context.ElementController cannot be cast to com.icesoft.faces.context.ElementController
at com.icesoft.faces.context.ElementController.from(ElementController.java:22)
at com.icesoft.faces.context.DOMResponseWriter.enhanceBody(DOMResponseWriter.java:294)
at com.icesoft.faces.context.DOMResponseWriter.enhanceAndFixDocument(DOMResponseWriter.java:239)
at com.icesoft.faces.context.DOMResponseWriter.endDocument(DOMResponseWriter.java:144)
at com.icesoft.faces.facelets.D2DFaceletViewHandler.renderResponse(D2DFaceletViewHandler.java:283)
at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:161)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:137)
at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:18)
at com.icesoft.faces.webapp.http.core.PageServer$1.respond(PageServer.java:25)
at com.icesoft.faces.webapp.http.servlet.ServletRequestResponse.respondWith(ServletRequestResponse.java:161)
at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet$ThreadBlockingRequestResponse.respondWith(ThreadBlockingAdaptingServlet.java:36)
at com.icesoft.faces.webapp.http.core.PageServer.service(PageServer.java:30)
at com.icesoft.faces.webapp.http.core.MultiViewServer.service(MultiViewServer.java:56)
at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer$Matcher.serviceOnMatch(PathDispatcherServer.java:50)
at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:19)
at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)
at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:29)
at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:106)
Unless my eyesight has really gone, this exception is saying it can't cast ElementController to ElementController? Same name, same package, as per usual it's just a big bag of fail again. Why can't I just get a normal comprehensible exception and stacktrace for once?
This one is bad, but there is one that is much worse, the dreaded NoClassDefFoundError, but that one deserves its own post somewhere after new year.
Happens when you've got multiple versions of the class - i.e. loaded by different class loaders. Still is bad though...
ReplyDeleteThx, that could indeed explain the exception, as it happens after deploying a new version of a portlet. It's just that I would expect it on a class that had effectivly changed and not an IceFaces class that didn't. But if you mean by 'multiple versions' that the versions can be identical then thee explanation would indeed fit, but then it does deserve a better exception message.
ReplyDeleteIdentical versions is what I meant.
ReplyDeleteThe exception message is weird indeed, but originated in an age where having multiple classloaders was very much the exception too. Nowadays with all these app servers and module-based RCPs it is more common to see this problem.