Hi Howard, Thanks for the suggestion. In our case we may have been able to get by with the workaround you suggested, but it turned out to be much simpler for us to replace the calls to objectOutputStream.writeUTF() with calls to objectOutputStream.writeUnshared().
In case anyone else runs into this, the following approach is working well for us. We had to create our own RequestCycleFactoryImpl, RequestCycle and CompressedDataEncoder classes to plumb in the writeUTF -> writeUnshared change. That was done by adding a block to hivemodule.xml to replace the implementation of service-id="tapestry.request.RequestCycleFactory". We were worried about a performance hit with the change but it seems to be at least as fast for us. This approach also removes any possibility of running into this limitation in the future. Regards, Aaron -----Original Message----- From: Howard Lewis Ship [mailto:hls...@gmail.com] Sent: Thursday, July 02, 2009 4:27 PM To: Tapestry users Subject: Re: [Tapestry 4.1] UTFDataFormatException in RequestCycle.encodeIdState That's an unexpected limitation! In exceptional cases, you can revert to simpler methods; for instance, using a simple <input type="text"/> rather than a TextField component, and handling that part of the submission inside your listener method much like a traditional servlet. As a stop-gap, you should give explicit jwcids to ALL of your components, as use shorter names ... this will buy you a lot (if you see the repetition in the generated element ids string at the root of your problem). This may be a time to use less intuitive names (i.e., use abbreviations!). On Thu, Jul 2, 2009 at 3:31 PM, Aaron Kaminsky <aar...@adaptiveplanning.com>wrote: > Hi all, > > I am having a problem with Tapestry 4.1.6. I have a form with many > (>1000) components. I get an exception trying to render the page. It > looks like the attempt in RequestCycle to call encodeIdState is > hitting a 65k length limit in ObjectOutputStream.writeUTF. Has anyone > else encountered this problem? I cannot restructure the page to > reduce the number of components, so I need another way to get around > this limit. I am thinking that I will need to override RequestCycle > so I can call ObjectOutputStream.writeObject instead of .writeUTF when > the string is long. Does anyone have a better solution? > > Exception details follow [[ > Exception class: org.apache.hivemind.ApplicationRuntimeException > Exception message: Unable to encode object > ,service$0,page$0,component$0,container$0,session$0,sp$0,layout$1,link > 1$ > 0,shell$0,Insert$2633,Any$9,Insert_0$12,ie6$0,body$0,OnErrorHandler$0, > If > $6398,ConfirmFunctions$0,DownloadableJavaScript$5,BootstrapJavaScript$ > 0, > homeTab$0,tabAnnouncement$1,RenderBody$728,sheetsTab$0,tabOverview$1,g > lo > balsTab$0,tabGlobalsOverview$1,sharedFormulasTab$0,tabSharedFormulas$1 > ,i > mportTab$0,tabModelImport$1,exportTab$0,tabExportVersion$1,reportsTab$ > 0, > Else$637,tabReportMenu$1,masterVersionChangeForm$0,apstate$1,apVerSel$ > 1, subMenuList$1,submenuItem$0,content$1,WarnOnUnsavedChan > > ... really long string truncated ... > > enu$0,APPageLink$0,Image_5$0,APPageLink_0$0,Image_6$0,APPageLink_1$0,I > ma > ge_7$0,APPageLink_2$0,Image_8$0,sampleBalanceSheetReport$1,Image_9$0,s > am > plePLReport$1,Image_100,addFavoriteSubmitForm$0:java.io.UTFDataFormatE > xc eption. This is sometimes caused when classes being serialized to a > stream dont implement java.io.Serializable. > Stack Trace: { > null > } > Exception class: java.io.UTFDataFormatException Exception message: > null Stack Trace: { > java.io.ObjectOutputStream$BlockDataOutputStream.writeUTF(Unknown > Source) > java.io.ObjectOutputStream$BlockDataOutputStream.writeUTF(Unknown > Source) > java.io.ObjectOutputStream.writeUTF(Unknown Source) > org.apache.tapestry.util.io.CompressedDataEncoder.encodeStringCompress > ed > DataEncoder.java:55 > org.apache.tapestry.engine.RequestCycle.encodeIdStateRequestCycle.java > :6 > 78 > org.apache.tapestry.form.FormSupportImpl.renderFormSupportImpl.java:48 > 2 > org.apache.tapestry.form.Form.renderComponentForm.java:217 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.AbstractComponent.renderBodyAbstractComponent.java > :5 > 38 > org.apache.tapestry.components.RenderBody.renderComponentRenderBody.ja > va > :39 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.AbstractComponent.renderBodyAbstractComponent.java > :5 > 38 > org.apache.tapestry.components.RenderBody.renderComponentRenderBody.ja > va > :39 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.AbstractComponent.renderBodyAbstractComponent.java > :5 > 38 > org.apache.tapestry.html.Body.renderComponentBody.java:38 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.AbstractComponent.renderBodyAbstractComponent.java > :5 > 38 > org.apache.tapestry.html.Shell.renderComponentShell.java:125 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.BaseComponent.renderComponentBaseComponent.java:10 > 7 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.BaseComponent.renderComponentBaseComponent.java:10 > 7 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:187 > org.apache.tapestry.BaseComponent.renderComponentBaseComponent.java:10 > 7 > org.apache.tapestry.AbstractComponent.renderAbstractComponent.java:724 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderDefault > Re > sponseBuilder.java:185 > org.apache.tapestry.AbstractPage.renderPageAbstractPage.java:249 > org.apache.tapestry.engine.RequestCycle.renderPageRequestCycle.java:40 > 0 > org.apache.tapestry.services.impl.DefaultResponseBuilder.renderRespons > eD > efaultResponseBuilder.java:159 > org.apache.tapestry.services.impl.ResponseRendererImpl.renderResponseR > es > ponseRendererImpl.java:33 > $ResponseRenderer_12220132922.renderResponse($ResponseRenderer_1222013 > 29 > 22.java) > org.apache.tapestry.engine.ExternalService.serviceExternalService.java > :1 > 61 > $IEngineService_122201329aa.service($IEngineService_122201329aa.java) > org.apache.tapestry.services.impl.EngineServiceOuterProxy.serviceEngin > eS > erviceOuterProxy.java:72 > org.apache.tapestry.engine.AbstractEngine.serviceAbstractEngine.java:2 > 41 > org.apache.tapestry.services.impl.InvokeEngineTerminator.serviceInvoke > En > gineTerminator.java:54 > $WebRequestServicer_1222013297a.service($WebRequestServicer_1222013297a. > java) > com.adaptiveplanning.util.TokenizedRequestFilter.serviceTokenizedReque > st > Filter.java:65 > $WebRequestServicerFilter_12220132978.service($WebRequestServicerFilte > r_ > 12220132978.java) > $WebRequestServicer_1222013297c.service($WebRequestServicer_1222013297c. > java) > $WebRequestServicer_12220132974.service($WebRequestServicer_12220132974. > java) > org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.ser > vi > ceWebRequestServicerPipelineBridge.java:61 > $ServletRequestServicer_1222013295a.service($ServletRequestServicer_12 > 22 > 013295a.java) > org.apache.tapestry.request.DecodedRequestInjector.serviceDecodedReque > st > Injector.java:55 > $ServletRequestServicerFilter_12220132956.service($ServletRequestServi > ce > rFilter_12220132956.java) > $ServletRequestServicer_1222013295c.service($ServletRequestServicer_12 > 22 > 013295c.java) > org.apache.tapestry.multipart.MultipartDecoderFilter.serviceMultipartD > ec > oderFilter.java:52 > $ServletRequestServicerFilter_12220132954.service($ServletRequestServi > ce > rFilter_12220132954.java) > $ServletRequestServicer_1222013295c.service($ServletRequestServicer_12 > 22 > 013295c.java) > org.apache.tapestry.services.impl.SetupRequestEncoding.serviceSetupReq > ue > stEncoding.java:53 > $ServletRequestServicerFilter_12220132958.service($ServletRequestServi > ce > rFilter_12220132958.java) > $ServletRequestServicer_1222013295c.service($ServletRequestServicer_12 > 22 > 013295c.java) > $ServletRequestServicer_1222013294e.service($ServletRequestServicer_12 > 22 > 013294e.java) > org.apache.tapestry.ApplicationServlet.doServiceApplicationServlet.java: > 126 > org.apache.tapestry.ApplicationServlet.doGetApplicationServlet.java:10 > 3 javax.servlet.http.HttpServlet.serviceHttpServlet.java:690 > javax.servlet.http.HttpServlet.serviceHttpServlet.java:803 > org.apache.catalina.core.ApplicationFilterChain.internalDoFilterApplic > at > ionFilterChain.java:290 > org.apache.catalina.core.ApplicationFilterChain.doFilterApplicationFil > te > rChain.java:206 > com.adaptiveplanning.system.ConnectionLeakDetector.doFilterConnectionL > ea > kDetector.java:58 > org.apache.catalina.core.ApplicationFilterChain.internalDoFilterApplic > at > ionFilterChain.java:235 > org.apache.catalina.core.ApplicationFilterChain.doFilterApplicationFil > te > rChain.java:206 > com.adaptiveplanning.system.RequestMonitor$RequestHandler.performNativ > eP > rocessingRequestMonitor.java:197 > com.adaptiveplanning.system.RequestMonitor$ForkedRequestHandler$1.call > Re > questMonitor.java:285 > com.adaptiveplanning.system.RequestMonitor$ForkedRequestHandler$1.call > Re > questMonitor.java:283 > java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) > java.util.concurrent.FutureTask.run(Unknown Source) > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) > java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > java.lang.Thread.run(Unknown Source) } ]] Request parameters are [[ ]] > > > Thanks and Regards, > Aaron Kaminsky > -- Howard M. Lewis Ship Creator of Apache Tapestry Director of Open Source Technology at Formos --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
