http://blog.gmane.org/gmane.comp.java.tapestry.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.comp.java.tapestry.user/98324 <pre> Thiago H de Paula Figueiredo wrote You can find the code for that method in my original post. Anyways, I figured out that the second error I reported was due to the fact that selected does not have &lt; at &gt;Persist, so it is expected for it to begin as null when the form variables are being filled in. Tapestry is just lazier that I expected (good job tapestry guys.) I fixed it by adding if(selected == null) { selected = new ArrayList&lt;String&gt;(); } to the beginning of the getCurrentCheckout method. And with that, my original problem is solved. Thanks for all the help. -Sean -- View this message in context: http://tapestry.1045711.n5.nabble.com/java-util-ConcurrentModificationException-in-tapestry-5-3-3-under-stress-tp5713368p5713389.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Sean 2012-05-24T15:19:27 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98323 <pre> Hi! &lt; at &gt;Inject JavaScriptSupport (even if you're not using JavaScript in your component) and use one of the allocateClentId() methods then use the returned value in the generated HTML. </pre> Thiago H. de Paula Figueiredo 2012-05-24T13:36:28 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98322 <pre>Have you seen this? I haven't gone very far into reverse AJAX but I thought this article might give you a leg up. http://www.ibm.com/developerworks/web/library/wa-reverseajax4/ Cheers, Geoff On 24/05/2012, at 8:15 PM, Lance Java wrote: --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Geoff Callender 2012-05-24T13:35:40 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98321 <pre>On Wed, 23 May 2012 20:01:46 -0300, Sean &lt;sean.whetten&lt; at &gt;sirsidynix.com&gt; wrote: Howard has been working on improvements to Tapestry internals under high loads, so please try again with 5.4-SNAPSHOT. What's the code in this method? </pre> Thiago H. de Paula Figueiredo 2012-05-24T11:07:18 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98320 <pre>I started developing a tapestry-push component built on top of http://directwebremoting.org/dwr/documentation/reverse-ajax/index.html DWR's reverse ajax but was disheartened to find that the DWR guys don't eat their own dogfood when it comes to push. I'm about to make a second attempt at tapestry-push built on top of http://cometd.org/ CometD which is reportedly a much more reliable push mechanism. You might find http://tapestry.1045711.n5.nabble.com/tapestry-push-proof-of-concept-td5697644.html this recent post interesting. -- View this message in context: http://tapestry.1045711.n5.nabble.com/Server-side-or-timed-update-of-a-zone-tp5713379p5713380.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Lance Java 2012-05-24T10:15:13 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98319 <pre>Hi, Have a look at the ZoneRefresh mixin, perhaps that's what you are looking for? Cheers, Jacob -----Original Message----- From: Fuhrmann, Hauke [mailto:Hauke.Fuhrmann&lt; at &gt;funkwerk-it.com] Sent: Thursday, May 24, 2012 11:45 AM To: users&lt; at &gt;tapestry.apache.org Subject: Server side or timed update of a zone Hi there, I have a html table (i.e. tapestry grid component) with some data coming from tapestry to the client. Whenever the server has new data for the table I want the table to update automatically without the user to reload the page. I understand that this is not possible in general with the request/response pattern in http. However, with Ajax, there should be some way, e.g. by triggering the client to regularly (e.g. every 10s) execute an ajax request for new data. Is there support in Tapestry for such pattern? I understand that zones in tapestry can be updated by certain events like clicking on some link. However, is there a timer event that could also trigger such update? Is this even possible? Do I have to implement it manually by Javascript? Cheers, Hauke -- Diese E-Mail kann vertrauliche und/oder rechtlich geschuetzte Informationen enthalten. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender durch eine Antwortmail und vernichten Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet. Wir danken fuer Ihre Kooperation. This e-mail may contain confidential and/or privileged information. If you are not the intended recipient or have received this e-mail in error, you are on notice of its status. Please notify the sender immediately by reply e-mail and delete this e-mail from your systems. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly prohibited. Thank you for your cooperation. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Poder, Jacob 2012-05-24T10:14:35 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98318 <pre>Hi there, I have a html table (i.e. tapestry grid component) with some data coming from tapestry to the client. Whenever the server has new data for the table I want the table to update automatically without the user to reload the page. I understand that this is not possible in general with the request/response pattern in http. However, with Ajax, there should be some way, e.g. by triggering the client to regularly (e.g. every 10s) execute an ajax request for new data. Is there support in Tapestry for such pattern? I understand that zones in tapestry can be updated by certain events like clicking on some link. However, is there a timer event that could also trigger such update? Is this even possible? Do I have to implement it manually by Javascript? Cheers, Hauke </pre> Fuhrmann, Hauke 2012-05-24T09:45:07 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98317 <pre>All IDs rendered by T5 are already unique. e.g. &lt;t:any t:mixins="renderClientId" /&gt; &lt;t:any t:mixins="renderClientId" /&gt; will render &lt;div id="any"/&gt; &lt;div id="any_0"/&gt; Steve. -- Steve Eynon ------------------------------- "If at first you don't succeed,    so much for skydiving!" On 24 May 2012 17:27, iberck &lt;iberck&lt; at &gt;gmail.com&gt; wrote: --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Steve Eynon 2012-05-24T09:37:49 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98316 <pre>Hi tapestry members: How can I create a component that generates unique ids? For example: PAGE --------------------------------- 1 &lt;t:component1/&gt; 2 &lt;t:component1/&gt; --------------------------------- I need component1 of line 1 has for example unique generated t:id="component1_0" and component1 of line 2 has for example unique generated t:id="component1_1" Thanks in advance -- View this message in context: http://tapestry.1045711.n5.nabble.com/How-can-I-create-a-component-that-generates-unique-ids-tp5713377.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> iberck 2012-05-24T09:27:29 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98315 <pre>I'm trying to figure out if there is a way to create a variable number of text fields in a form that are backed by normal strings. I've seen the AJAXFormLoop stuff, and it's close to what I think I'm after, but not quite there. The appears to require a mutable object returned fron onAddRow(). I just really want straight Strings. Is there an easy way to use Javascript to add a variable number of fields that doesn't require wrapping a String in some sort of mutable object, and that doesn't require a lot of manipulation of the form models? Thanks, Richard --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Richard Frovarp 2012-05-24T04:17:37 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98314 <pre>Here is our implementation with Spring 3.1.0 - it lets you use the Spring transaction annotations on your Spring services. First in your module: public static void bind(ServiceBinder binder) { binder.bind(ComponentRequestFilter.class, OpenSpringSessionInViewFilter.class).withSimpleId(); } public static void contributeComponentRequestHandler(OrderedConfiguration&lt;ComponentRequestFilter&gt; configuration, OpenSpringSessionInViewFilter filter) { configuration.add("OpenSessionInViewFilter", filter); } And here's the class - it was created by collapsing the usual Spring hierarchy of 18,001 classes and interfaces to about 8 lines of useful code. (Shesh!) import java.io.IOException; import org.apache.tapestry5.ioc.annotations.Inject; import org.apache.tapestry5.services.ComponentEventRequestParameters; import org.apache.tapestry5.services.ComponentRequestFilter; import org.apache.tapestry5.services.ComponentRequestHandler; import org.apache.tapestry5.services.PageRenderRequestParameters; import org.apache.tapestry5.services.Request; import org.hibernate.FlushMode; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.ApplicationContext; import org.springframework.orm.hibernate3.SessionFactoryUtils; import org.springframework.orm.hibernate3.SessionHolder; import org.springframework.transaction.support.TransactionSynchronizationManager; public class OpenSpringSessionInViewFilter implements ComponentRequestFilter { private static final Logger LOG = LoggerFactory.getLogger(OpenSpringSessionInViewFilter.class); &lt; at &gt;Inject private ApplicationContext applicationContext; &lt; at &gt;Inject private Request request; &lt; at &gt;Override public void handlePageRender(final PageRenderRequestParameters parameters, final ComponentRequestHandler handler) throws IOException { if (alreadyFiltered()) { // Proceed without invoking this filter... handler.handlePageRender(parameters); } else { doFilterInternal(new PageRenderEventHandler(handler, parameters)); } } &lt; at &gt;Override public void handleComponentEvent(final ComponentEventRequestParameters parameters, final ComponentRequestHandler handler) throws IOException { if (alreadyFiltered()) { // Proceed without invoking this filter... handler.handleComponentEvent(parameters); } else { doFilterInternal(new ComponentEventHandler(handler, parameters)); } } private void doFilterInternal(EventHandler stuff) throws IOException { SessionFactory sessionFactory = applicationContext.getBean("sessionFactory", SessionFactory.class); boolean participate = false; // single session mode if (TransactionSynchronizationManager.hasResource(sessionFactory)) { // Do not modify the Session: just set the participate flag. participate = true; } else { LOG.debug("Opening single Hibernate Session in OpenSessionInViewFilter"); Session session = getSession(sessionFactory); TransactionSynchronizationManager.bindResource(sessionFactory, new SessionHolder(session)); } try { stuff.doStuff(); } finally { if (!participate) { SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.unbindResource(sessionFactory); LOG.debug("Closing single Hibernate Session in OpenSessionInViewFilter"); SessionFactoryUtils.closeSession(sessionHolder.getSession()); } } } &lt; at &gt;SuppressWarnings("deprecation") private Session getSession(SessionFactory sessionFactory) { Session session = SessionFactoryUtils.getSession(sessionFactory, true); session.setFlushMode(FlushMode.NEVER); return session; } private boolean alreadyFiltered() { String alreadyFilteredAttributeName = "OpenSpringSessionInViewFilter.FILTERED"; boolean alreadyFiltered = request.getAttribute(alreadyFilteredAttributeName) != null; request.setAttribute(alreadyFilteredAttributeName, Boolean.TRUE); return alreadyFiltered; } private final class PageRenderEventHandler implements EventHandler { private final ComponentRequestHandler handler; private final PageRenderRequestParameters parameters; private PageRenderEventHandler(ComponentRequestHandler handler, PageRenderRequestParameters parameters) { this.handler = handler; this.parameters = parameters; } &lt; at &gt;Override public void doStuff() throws IOException { handler.handlePageRender(parameters); } } private final class ComponentEventHandler implements EventHandler { private final ComponentRequestHandler handler; private final ComponentEventRequestParameters parameters; private ComponentEventHandler(ComponentRequestHandler handler, ComponentEventRequestParameters parameters) { this.handler = handler; this.parameters = parameters; } &lt; at &gt;Override public void doStuff() throws IOException { handler.handleComponentEvent(parameters); } } private interface EventHandler { void doStuff() throws IOException; } } On 23 May 2012 05:53, bhorvat &lt;horvat.z.boris&lt; at &gt;gmail.com&gt; wrote: --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Steve Eynon 2012-05-24T03:34:59 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98313 <pre>In Test.tml you could also do: &lt;t:component1 block1="block:dude" /&gt; &lt;t:block t:id="dude&gt; texto bloque uno &lt;/t:block&gt; Steve. -- Steve Eynon ------------------------------- "If at first you don't succeed,    so much for skydiving!" On 24 May 2012 07:43, iberck &lt;iberck&lt; at &gt;gmail.com&gt; wrote: --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Steve Eynon 2012-05-24T03:19:16 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98312 <pre>I found the solution: .tml: public class Component1 { &lt; at &gt;Parameter &lt; at &gt;Property private Block block1; } .java: contenido bloque: &lt;t:delegate to="block1"/&gt; Test.tml: &lt;t:component1&gt; &lt;p:block1&gt; texto bloque uno &lt;/p:block1&gt; &lt;/t:component1&gt; -- View this message in context: http://tapestry.1045711.n5.nabble.com/T5-How-can-I-pass-a-block-to-a-component-tp5713371p5713372.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> iberck 2012-05-23T23:43:43 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98311 <pre>I need a component "component1" that receives a block, for example: &lt;t:component1&gt; &lt;p:block1&gt; block1's body &lt;/p:block1&gt; &lt;/t:component1&gt; How can I define the component1 to receive the "block1" block? Thanks in advance -- View this message in context: http://tapestry.1045711.n5.nabble.com/T5-How-can-I-pass-a-block-to-a-component-tp5713371.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> iberck 2012-05-23T23:35:49 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98310 <pre>Thanks for the quick reply. I changed selected to initialize in setupRender, and now I'm getting the following exception. What's wierd about this one is that if I set a breakpoint in the setCurrentCheckout method, it reports that selected and item are both non-null and I can add strings to selected using the debugger, but somehow it still throws this NullPointerException there. org.apache.tapestry5.ioc.internal.OperationException: Failure writing parameter 'value' of component search/Account:checkouts.checkoutslist.checkbox: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/product/module/components/search/account/CheckoutsList.tml, line 14] at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88) at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87) at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121) at org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:146) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1047) at org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:81) at org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42) at $ComponentEventRequestHandler_2dee3deb32f7f.handle(Unknown Source) at org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42) at $ComponentEventRequestHandler_2dee3deb32f7f.handle(Unknown Source) at org.apache.tapestry5.upload.internal.services.UploadExceptionFilter.handle(UploadExceptionFilter.java:75) at $ComponentEventRequestHandler_2dee3deb32f7f.handle(Unknown Source) at org.apache.tapestry5.services.TapestryModule$40.handle(TapestryModule.java:2456) at $ComponentEventRequestHandler_2dee3deb32f7f.handle(Unknown Source) at $ComponentEventRequestHandler_2dee3deb32afd.handle(Unknown Source) at org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43) at org.apache.tapestry5.services.InitializeActivePageName.handleComponentEvent(InitializeActivePageName.java:39) at $ComponentRequestHandler_2dee3deb32aff.handleComponentEvent(Unknown Source) at $ComponentRequestHandler_2dee3deb32ac7.handleComponentEvent(Unknown Source) at org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46) at $Dispatcher_2dee3deb32aca.dispatch(Unknown Source) at $Dispatcher_2dee3deb32996.dispatch(Unknown Source) at org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:302) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper$1.doFilter(RequestFilterWrapper.java:60) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper.service(RequestFilterWrapper.java:55) at $RequestHandler_2dee3deb32997.service(Unknown Source) at org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26) at $RequestHandler_2dee3deb32997.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:902) at $RequestHandler_2dee3deb32997.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:892) at $RequestHandler_2dee3deb32997.service(Unknown Source) at com.mycompany.product.module.framework.SecurityFilter.service(SecurityFilter.java:79) at $RequestHandler_2dee3deb32997.service(Unknown Source) at com.mycompany.product.module.framework.ProfileFilter.service(ProfileFilter.java:146) at $RequestHandler_2dee3deb32997.service(Unknown Source) at com.mycompany.product.module.framework.WebResourceFilter.service(WebResourceFilter.java:39) at $RequestHandler_2dee3deb32997.service(Unknown Source) at org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90) at $RequestHandler_2dee3deb32997.service(Unknown Source) at com.mycompany.product.module.services.AppModule$4.service(AppModule.java:960) at $RequestFilter_2dee3deb3298a.service(Unknown Source) at $RequestHandler_2dee3deb32997.service(Unknown Source) at org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:105) at org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:95) at org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85) at org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:119) at $RequestHandler_2dee3deb32997.service(Unknown Source) at $RequestHandler_2dee3deb32982.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:253) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb3297e.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb3297d.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb3297c.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb3297b.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb3297a.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2dee3deb32979.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62) at $HttpServletRequestFilter_2dee3deb32980.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at com.mycompany.product.module.framework.EmbeddedSearchBoxFilter.service(EmbeddedSearchBoxFilter.java:79) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at com.mycompany.product.module.framework.IpnListener.service(IpnListener.java:93) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at com.mycompany.product.module.framework.ExternalResourceFilter.service(ExternalResourceFilter.java:61) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at com.mycompany.product.module.framework.AbsolutePathFilter.service(AbsolutePathFilter.java:43) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at com.mycompany.product.module.framework.IpAddressFilter.service(IpAddressFilter.java:36) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:852) at $HttpServletRequestHandler_2dee3deb32984.service(Unknown Source) at $HttpServletRequestHandler_2dee3deb32970.service(Unknown Source) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445) at java.lang.Thread.run(Thread.java:662) Caused by: org.apache.tapestry5.runtime.ComponentEventException: Failure writing parameter 'value' of component search/Account:checkouts.checkoutslist.checkbox: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/product/module/components/search/account/CheckoutsList.tml, line 14] at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1130) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3200(ComponentPageElementImpl.java:61) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1051) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1048) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74) ... 116 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure writing parameter 'value' of component search/Account:checkouts.checkoutslist.checkbox: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/product/module/components/search/account/CheckoutsList.tml, line 49] at org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:672) at org.apache.tapestry5.corelib.components.Form.advised$onAction_2dee3deb32b9b(Form.java:522) at org.apache.tapestry5.corelib.components.Form$Invocation_onAction_2dee3deb32b9a.proceedToAdvisedMethod(Unknown Source) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:84) at org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86) at org.apache.tapestry5.corelib.components.Form.onAction(Form.java) at org.apache.tapestry5.corelib.components.Form.dispatchComponentEvent(Form.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:923) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1106) ... 120 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure writing parameter 'value' of component search/Account:checkouts.checkoutslist.checkbox: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/product/module/components/search/account/CheckoutsList.tml, line 49] at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.writeToBinding(ParameterWorker.java:292) at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.set(ParameterWorker.java:236) at org.apache.tapestry5.corelib.components.Checkbox.conduit_set_value(Checkbox.java) at org.apache.tapestry5.corelib.components.Checkbox.processSubmission(Checkbox.java:88) at org.apache.tapestry5.corelib.base.AbstractField.processSubmission(AbstractField.java:193) at org.apache.tapestry5.corelib.base.AbstractField.access$100(AbstractField.java:37) at org.apache.tapestry5.corelib.base.AbstractField$ProcessSubmission.execute(AbstractField.java:95) at org.apache.tapestry5.corelib.base.AbstractField$ProcessSubmission.execute(AbstractField.java:89) at org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:661) ... 129 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/product/module/components/search/account/CheckoutsList.tml, line 49] at org.apache.tapestry5.internal.bindings.PropBinding.set(PropBinding.java:76) at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.writeToBinding(ParameterWorker.java:289) ... 137 more Caused by: java.lang.NullPointerException at com.mycompany.product.module.components.search.account.CheckoutsList.setCurrentCheckout(CheckoutsList.java:170) at $InternalPropertyConduit_2dee3deb331db.set(Unknown Source) at org.apache.tapestry5.internal.bindings.PropBinding.set(PropBinding.java:72) ... 138 more -- View this message in context: http://tapestry.1045711.n5.nabble.com/java-util-ConcurrentModificationException-in-tapestry-5-3-3-under-stress-tp5713368p5713370.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Sean 2012-05-23T23:01:46 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98309 <pre> &lt;snip&gt; Don't initialize selected here, do it in onActivate or setupRender. -Dave --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> David Rees 2012-05-23T22:28:54 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98308 <pre>Hi, I recently upgraded to tapestry 5.3.3 from 5.0.1.x, and while running some load tests using jmeter, I saw some new ConcurrentModificationException errors. The test is simple, it just selects the first checkbox on the form, then submits it. It looks to me like there's a race condition in the new singleton page handling. I don't think this problem is specific to my code because I've seen this error in stack traces that don't include my compononets as well when under significant load. (That stack trace is attached at the bottom, below the logs produced by my code). This might be related to http://tapestry.1045711.n5.nabble.com/Rather-worrying-exception-with-5-2-4-java-util-ConcurrentModificationException-td3370588.html, but my stack trace doesn't contain the method where the proposed patch would be. Here's my code: &lt;t:form id="RenewCheckoutsForm" context="context"&gt; ... &lt;t:loop source="currentCheckouts" encoder="checkoutsEncoder" value="item" index="index"&gt; ... &lt;t:checkbox t:value="currentCheckout" class="checkoutsCheckbox"/&gt; ... &lt;/t:loop&gt; ... &lt;t:submit t:id="myCheckouts_checkoutslist_submit" class="hidden" value="submit"/&gt; &lt;/t:form&gt; public class CheckoutsList { &lt; at &gt;Property private List&lt;CheckoutsInfoType&gt; currentCheckouts; &lt; at &gt;Property private CheckoutsInfoType item; private List&lt;String&gt; selected = new ArrayList&lt;String&gt;(); ... boolean setupRender(){ log.info("CheckoutsList setuprender"); ... } Object onSubmit(String friendlyUrl, SearchSession session){ log.info("Submitted the form: selected.length = " + selected.size()); try { for(String id: selected){ ... } } catch(ConcurrentModificationException e) { log.info("caught ConcurrentModificationException: selected.length = " + selected.size(), e); } selected.clear(); log.info("cleared out selected"); return pageLinkSource.createPageRenderLinkWithContext(Account.class, 1, friendlyUrl, session); } public boolean getCurrentCheckout(){ return selected.contains(item.getItemId()); } /** set the selected value for the current checkout */ public void setCurrentCheckout(final boolean val){ if(item != null){ if(val){ log.info("adding to selected " + item.getItemId()); selected.add(item.getItemId()); } else { log.info("removing from selected " + item.getItemId()); selected.remove(item.getItemId()); } } } ... } Here in an excerpt from the logs under a significant load: ... 2012-05-23 17:08:28,261 [TP-Processor15] INFO adding to selected 310000005 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,261 [TP-Processor15] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,282 [TP-Processor63] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,284 [TP-Processor23] INFO adding to selected 310000028 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,284 [TP-Processor23] INFO Submitted the form: selected.length = 2 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,285 [TP-Processor83] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,307 [TP-Processor15] INFO caught ConcurrentModificationException: selected.length = 2 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) at com.mycompany.product.module.components.search.account.CheckoutsList.dispatchComponentEvent(CheckoutsList.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:923) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1106) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3200(ComponentPageElementImpl.java:61) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1051) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1048) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74) at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87) at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121) at org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:146) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1047) at org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.triggerContextEvent(InternalComponentResourcesImpl.java:302) at org.apache.tapestry5.corelib.components.Form.advised$onAction_2290e07ed7404(Form.java:554) at org.apache.tapestry5.corelib.components.Form$Invocation_onAction_2290e07ed7403.proceedToAdvisedMethod(Unknown Source) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:84) at org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37) at org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86) at org.apache.tapestry5.corelib.components.Form.onAction(Form.java) at org.apache.tapestry5.corelib.components.Form.dispatchComponentEvent(Form.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:923) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.processEventTriggering(ComponentPageElementImpl.java:1106) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$3200(ComponentPageElementImpl.java:61) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1051) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$5.invoke(ComponentPageElementImpl.java:1048) at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74) at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87) at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121) at org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:146) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1047) at org.apache.tapestry5.internal.services.AjaxComponentEventRequestHandler.handle(AjaxComponentEventRequestHandler.java:110) at org.apache.tapestry5.internal.services.ajax.AjaxFormUpdateFilter.handle(AjaxFormUpdateFilter.java:56) at $ComponentEventRequestHandler_2290e07ed76b6.handle(Unknown Source) at $ComponentEventRequestHandler_2290e07ed76ae.handle(Unknown Source) at org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42) at $ComponentEventRequestHandler_2290e07ed76b0.handle(Unknown Source) at org.apache.tapestry5.upload.internal.services.UploadExceptionFilter.handle(UploadExceptionFilter.java:75) at $ComponentEventRequestHandler_2290e07ed76b0.handle(Unknown Source) at org.apache.tapestry5.services.TapestryModule$40.handle(TapestryModule.java:2456) at $ComponentEventRequestHandler_2290e07ed76b0.handle(Unknown Source) at $ComponentEventRequestHandler_2290e07ed7366.handle(Unknown Source) at org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43) at org.apache.tapestry5.services.InitializeActivePageName.handleComponentEvent(InitializeActivePageName.java:39) at $ComponentRequestHandler_2290e07ed7368.handleComponentEvent(Unknown Source) at $ComponentRequestHandler_2290e07ed732f.handleComponentEvent(Unknown Source) at org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46) at $Dispatcher_2290e07ed7332.dispatch(Unknown Source) at $Dispatcher_2290e07ed7204.dispatch(Unknown Source) at org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:302) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper$1.doFilter(RequestFilterWrapper.java:60) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper.service(RequestFilterWrapper.java:55) at $RequestHandler_2290e07ed7205.service(Unknown Source) at org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26) at $RequestHandler_2290e07ed7205.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:902) at $RequestHandler_2290e07ed7205.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:892) at $RequestHandler_2290e07ed7205.service(Unknown Source) at com.mycompany.product.module.framework.SecurityFilter.service(SecurityFilter.java:65) at $RequestHandler_2290e07ed7205.service(Unknown Source) at com.mycompany.product.module.framework.ProfileFilter.service(ProfileFilter.java:148) at $RequestHandler_2290e07ed7205.service(Unknown Source) at com.mycompany.product.module.framework.WebResourceFilter.service(WebResourceFilter.java:39) at $RequestHandler_2290e07ed7205.service(Unknown Source) at org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90) at $RequestHandler_2290e07ed7205.service(Unknown Source) at com.mycompany.product.module.services.AppModule$4.service(AppModule.java:959) at $RequestFilter_2290e07ed71f9.service(Unknown Source) at $RequestHandler_2290e07ed7205.service(Unknown Source) at $RequestHandler_2290e07ed71f1.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:253) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71ef.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71ee.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71ed.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71ec.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71eb.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_2290e07ed71ea.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at com.mycompany.product.module.framework.EmbeddedSearchBoxFilter.service(EmbeddedSearchBoxFilter.java:79) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at com.mycompany.product.module.framework.IpnListener.service(IpnListener.java:93) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at com.mycompany.product.module.framework.ExternalResourceFilter.service(ExternalResourceFilter.java:61) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at com.mycompany.product.module.framework.AbsolutePathFilter.service(AbsolutePathFilter.java:43) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at com.mycompany.product.module.framework.IpAddressFilter.service(IpAddressFilter.java:36) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62) at $HttpServletRequestFilter_2290e07ed71e8.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:852) at $HttpServletRequestHandler_2290e07ed71f3.service(Unknown Source) at $HttpServletRequestHandler_2290e07ed71df.service(Unknown Source) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:744) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:674) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:866) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:662) 2012-05-23 17:08:28,311 [TP-Processor15] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,320 [TP-Processor23] INFO caught ConcurrentModificationException: selected.length = 0 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:28,321 [TP-Processor23] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,354 [TP-Processor38] INFO adding to selected 31070000112090 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,354 [TP-Processor38] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,392 [TP-Processor38] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,396 [TP-Processor83] INFO adding to selected 31070000341749 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,397 [TP-Processor83] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,412 [TP-Processor63] INFO adding to selected 310000008 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,413 [TP-Processor63] INFO Submitted the form: selected.length = 2 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,439 [TP-Processor83] INFO caught ConcurrentModificationException: selected.length = 2 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:28,440 [TP-Processor83] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,450 [TP-Processor63] INFO caught ConcurrentModificationException: selected.length = 0 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:28,451 [TP-Processor63] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,756 [TP-Processor24] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,898 [TP-Processor10] INFO adding to selected 31070000524179 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,898 [TP-Processor10] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,915 [TP-Processor29] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:28,943 [TP-Processor10] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,034 [TP-Processor29] INFO adding to selected 0107100050460 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,034 [TP-Processor29] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,082 [TP-Processor29] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,110 [TP-Processor38] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,209 [TP-Processor83] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,222 [TP-Processor10] INFO Submitted the form: selected.length = 0 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,222 [TP-Processor10] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,272 [TP-Processor73] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,284 [TP-Processor30] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,288 [TP-Processor24] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,350 [TP-Processor83] INFO adding to selected 31070000335402 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,351 [TP-Processor83] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,429 [TP-Processor83] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,437 [TP-Processor73] INFO adding to selected 0107100184905 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,438 [TP-Processor73] INFO Submitted the form: selected.length = 1 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,451 [TP-Processor30] INFO adding to selected 31070000162012 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,451 [TP-Processor30] INFO Submitted the form: selected.length = 2 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,454 [TP-Processor28] INFO adding to selected 310000557 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,455 [TP-Processor28] INFO Submitted the form: selected.length = 3 - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,502 [TP-Processor73] INFO caught ConcurrentModificationException: selected.length = 3 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:29,502 [TP-Processor73] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,515 [TP-Processor30] INFO caught ConcurrentModificationException: selected.length = 0 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:29,516 [TP-Processor30] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,523 [TP-Processor28] INFO caught ConcurrentModificationException: selected.length = 0 - com.mycompany.product.module.components.search.account.CheckoutsList java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at com.mycompany.product.module.components.search.account.CheckoutsList.onSubmit(CheckoutsList.java:314) ... 2012-05-23 17:08:29,523 [TP-Processor28] INFO cleared out selected - com.mycompany.product.module.components.search.account.CheckoutsList 2012-05-23 17:08:29,543 [TP-Processor15] INFO CheckoutsList setuprender - com.mycompany.product.module.components.search.account.CheckoutsList ... And here is the stack trace not originating directly from my code: 2012-05-23 13:34:32,890 [TP-Processor19] ERROR Render queue error in BeginRender[search/Results:limitcolumn.loop]: org.apache.tapestry5.ioc.internal.util.TapestryException - tapestry.render.com.mycompany.product.module.pages.search.Results org.apache.tapestry5.ioc.internal.util.TapestryException [at classpath:com/mycompany/mycompany/module/components/search/LimitColumn.tml, line 71] at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:153) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$BeginRenderPhase.render(ComponentPageElementImpl.java:209) at org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:72) at org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:124) at $PageRenderQueue_21c3877bae5e7.render(Unknown Source) at $PageRenderQueue_21c3877bae5e6.render(Unknown Source) at org.apache.tapestry5.internal.services.MarkupRendererTerminator.renderMarkup(MarkupRendererTerminator.java:37) at org.apache.tapestry5.services.TapestryModule$30.renderMarkup(TapestryModule.java:1979) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$29.renderMarkup(TapestryModule.java:1963) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$28.renderMarkup(TapestryModule.java:1945) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$27.renderMarkup(TapestryModule.java:1930) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$26.renderMarkup(TapestryModule.java:1916) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$25.renderMarkup(TapestryModule.java:1898) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$24.renderMarkup(TapestryModule.java:1879) at $MarkupRenderer_21c3877bae5ea.renderMarkup(Unknown Source) at $MarkupRenderer_21c3877bae5e5.renderMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47) at $PageMarkupRenderer_21c3877bae5e3.renderPageMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67) at $PageResponseRenderer_21c3877bae41e.renderPageResponse(Unknown Source) at org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:64) at org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:2207) at $PageRenderRequestHandler_21c3877bae420.handle(Unknown Source) at $PageRenderRequestHandler_21c3877bae41a.handle(Unknown Source) at org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48) at org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47) at $ComponentRequestHandler_21c3877bae41b.handlePageRender(Unknown Source) at $ComponentRequestHandler_21c3877bae3e2.handlePageRender(Unknown Source) at org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:45) at $Dispatcher_21c3877bae3e5.dispatch(Unknown Source) at $Dispatcher_21c3877bae2b7.dispatch(Unknown Source) at org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:302) at com.mycompany.product.module.framework.SecurityFilter.service(SecurityFilter.java:65) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at com.mycompany.product.module.framework.ProfileFilter.service(ProfileFilter.java:148) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at com.mycompany.product.module.framework.WebResourceFilter.service(WebResourceFilter.java:39) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at com.mycompany.product.module.services.AppModule$4.service(AppModule.java:959) at $RequestFilter_21c3877bae2ac.service(Unknown Source) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper$1.doFilter(RequestFilterWrapper.java:60) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.RequestFilterWrapper.service(RequestFilterWrapper.java:55) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:902) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:892) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90) at $RequestHandler_21c3877bae2b8.service(Unknown Source) at $RequestHandler_21c3877bae2a4.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:253) at com.mycompany.product.module.framework.EmbeddedSearchBoxFilter.service(EmbeddedSearchBoxFilter.java:79) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at com.mycompany.product.module.framework.IpnListener.service(IpnListener.java:93) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at com.mycompany.product.module.framework.ExternalResourceFilter.service(ExternalResourceFilter.java:61) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at com.mycompany.product.module.framework.AbsolutePathFilter.service(AbsolutePathFilter.java:43) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at com.mycompany.product.module.framework.IpAddressFilter.service(IpAddressFilter.java:36) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae299.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at nu.localhost.tapestry5.springsecurity.services.internal.SpringSecurityExceptionTranslationFilter.doFilter(SpringSecurityExceptionTranslationFilter.java:89) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae298.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae297.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae296.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae295.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper$1.doFilter(HttpServletRequestFilterWrapper.java:56) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at nu.localhost.tapestry5.springsecurity.services.internal.HttpServletRequestFilterWrapper.service(HttpServletRequestFilterWrapper.java:52) at $HttpServletRequestFilter_21c3877bae294.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62) at $HttpServletRequestFilter_21c3877bae2a2.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:852) at $HttpServletRequestHandler_21c3877bae2a6.service(Unknown Source) at $HttpServletRequestHandler_21c3877bae292.service(Unknown Source) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:495) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:744) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:674) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:866) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:662) Caused by: java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at org.apache.tapestry5.corelib.components.Loop.begin(Loop.java:386) at org.apache.tapestry5.corelib.components.Loop.beginRender(Loop.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$BeginRenderPhase.invokeComponent(ComponentPageElementImpl.java:202) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:133) ... 130 more Thanks in advance, Sean -- View this message in context: http://tapestry.1045711.n5.nabble.com/java-util-ConcurrentModificationException-in-tapestry-5-3-3-under-stress-tp5713368.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Sean 2012-05-23T21:28:37 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98307 <pre>-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, Tapestry has a tree component, but it focuses on one specific way of using trees. In the project I am currently working on, we would like to use trees in a different way. So I got down and started creating a tree component, open sourcing it: http://github.com/arnohaase/t5-tree.git It is far from finished, but since I am fairly new to both Tapestry, JavaScript and web programming in general, I would much appreciate all kinds of feedback. So, here is a short overview of what the component library (currently) offers: * an explicit hierarchy of tree nodes as separate elements in the .tml file * works with or without integration into a form * native tri-state checkboxes at every level, higher levels being automatically updated when lower levels are changed * A recursively ("true") tree component that takes a slightly different approach from the standard tree component, allowing client code to specify which parts of the tree are transferred to the browser "eagerly" and which parts are only transferred via AJAX when the respective node is opened. The components are stylable via CSS (did I strike a good balance here? This is something I am particularly keen on getting feedback on!). They are built on top of jQuery (with tapestry5-jquery). There are plenty of rough edges. One especially rough edge I am aware of is the verbose usage of JavaScript - I plan on cleaning that up. So - does this approach look helpful to others? Are there any suggestions for doing things differently? Efficiency concerns? Thank you for taking the time to read this verbose mail, and if you take the time to look at the code, thank you very very much! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+9VY8ACgkQbmZsMyUPuXQP9QCfRjMm1UV3pplkaWfnsXCA/lwj cm4AoL40N4EcSthiIe0VG9HDWqYSl7Nu =Ew5e -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Arno Haase 2012-05-23T21:24:36 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98306 <pre> TomEE is Tomcat with Java EE 6 added in. It's fuss-free - download, unzip, and start. It makes Tomcat a viable alternative to JBoss, Glassfish, etc. The capabilities are summarised here: http://openejb.apache.org/comparison.html I should give a special mention, too, to JBoss 7.1. The directory structure is simpler the before, the config is so much simpler than before, and the startup time is way faster than before. They've done a great job. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe&lt; at &gt;tapestry.apache.org For additional commands, e-mail: users-help&lt; at &gt;tapestry.apache.org </pre> Geoff Callender 2012-05-23T20:57:51 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98305 <pre>On Wed, 23 May 2012 11:29:27 -0300, Fuhrmann, Hauke &lt;Hauke.Fuhrmann&lt; at &gt;funkwerk-it.com&gt; wrote: Hi! Just use some JavaScript framework/library for that. You can use a Zone or use some custom JS code for it. </pre> Thiago H. de Paula Figueiredo 2012-05-23T19:09:10 http://permalink.gmane.org/gmane.comp.java.tapestry.user/98304 <pre>On Wed, 23 May 2012 10:30:31 -0300, Lance Java &lt;lance.java&lt; at &gt;googlemail.com&gt; wrote: Better yet, create an enum class for it. </pre> Thiago H. de Paula Figueiredo 2012-05-23T19:07:09 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.java.tapestry.user