Major Description
I've a page which was throwing NotSerializableException. So I just naively added "implements Serializable", and this is what I get now:
16:53:26,922 ERROR [lang.Objects] Error serializing object class org.jboss.jawabot.plugin.logger.web._pg.ChannelLogPage [object=[Page class = org.jboss.jawabot.plugin.logger.web._pg.ChannelLogPage, id = 0, version = 0]] java.lang.ClassCastException: java.io.IOException cannot be cast to java.io.NotSerializableException at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:129) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1124) at org.apache.wicket.protocol.http.pagestore.AbstractPageStore$PageSerializer.getPageReplacementObject(AbstractPageStore.java:285) at org.apache.wicket.Page.writeReplace(Page.java:1401) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1115) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1346) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1154) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330) at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:121) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1124) at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:203) at org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:840) at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:332) at org.apache.wicket.Session.requestDetached(Session.java:1435) at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1176) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1462) at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486) at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:138) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Before that, page rendering fails due to a NPE in my code.
16:53:26,808 ERROR [wicket.RequestCycle] Error attaching this container for rendering: [MarkupContainer [Component id = channelLogPanel]] org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = channelLogPanel]] at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1769) at org.apache.wicket.Component.onBeforeRender(Component.java:3966) at org.apache.wicket.Component.internalBeforeRender(Component.java:1066) at org.apache.wicket.Component.beforeRender(Component.java:1100) at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1757) at org.apache.wicket.Component.onBeforeRender(Component.java:3966) at org.apache.wicket.Page.onBeforeRender(Page.java:1550) at org.apache.wicket.Component.internalBeforeRender(Component.java:1066) at org.apache.wicket.Component.beforeRender(Component.java:1100) at org.apache.wicket.Component.prepareForRender(Component.java:2292) at org.apache.wicket.Page.prepareForRender(Page.java:1540) at org.apache.wicket.Component.prepareForRender(Component.java:2329) at org.apache.wicket.Page.renderPage(Page.java:911) at org.apache.wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java:201) at org.apache.wicket.request.target.coding.HybridUrlCodingStrategy$HybridBookmarkablePageRequestTarget.respond(HybridUrlCodingStrategy.java:983) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1436) at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486) at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:138) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.NullPointerException at org.jboss.weld.environment.se.jpa.EntityManagerDelegate.createQuery(EntityManagerDelegate.java:125) at org.jboss.jawabot.plugin.logger.bus.ChannelLogManager.getEventsByCriteria(ChannelLogManager.java:36) at org.jboss.jawabot.plugin.logger.bus.org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.getEventsByCriteria(org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.java) at org.jboss.jawabot.plugin.logger.bus.ChannelLogManager.getEventsByCriteria(ChannelLogManager.java:26) at org.jboss.jawabot.plugin.logger.bus.org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.getEventsByCriteria(org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.interceptor.proxy.SimpleInterceptionChain.invokeNextInterceptor(SimpleInterceptionChain.java:114) at org.jboss.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:133) at org.jboss.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:112) at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:65) at org.jboss.jawabot.plugin.logger.bus.org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.getEventsByCriteria(org$jboss$weld$bean-classpath-ManagedBean-class_org$jboss$jawabot$plugin$logger$bus$ChannelLogManager_$$_WeldSubclass.java) at org.jboss.jawabot.plugin.logger.web.IrcEventCriteriaLDM.load(IrcEventCriteriaLDM.java:40) at org.jboss.jawabot.plugin.logger.web.IrcEventCriteriaLDM.load(IrcEventCriteriaLDM.java:19) at org.apache.wicket.model.LoadableDetachableModel.getObject(LoadableDetachableModel.java:120) at org.apache.wicket.Component.getDefaultModelObject(Component.java:1724) at org.apache.wicket.markup.html.list.ListView.getViewSize(ListView.java:220) at org.apache.wicket.markup.html.list.ListView.onPopulate(ListView.java:511) at org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:131) at org.apache.wicket.Component.internalBeforeRender(Component.java:1066) at org.apache.wicket.Component.beforeRender(Component.java:1100) at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1757) ... 36 more