I will re-deploy my 8.x version and send you the log in the few days (the time it crashes). I don't know if they will be useful, I don't remember something eloquent in there, that's why I wanted to profile it...
On Mon, Jul 31, 2017 at 8:43 PM, Martin Grigorov <mgrigo...@apache.org> wrote: > examples7.x use Tomcat image from OpenShift, and it has the scripts by > default. > > I think any of the free providers (like OpenShift, Heroku, ...) shutdown > the app if it is not used for some time. When someone requests the app they > start it again. I think this is what was happening here. > > I've just checked the logs of examples8x and there are some interesting > problems: > > 1. > Caused by: java.lang.RuntimeException: An error occurred while getting the > model object for Component: [Component id = word, page = > org.apache.wicket.examples.hangman.Guess, path = word, type = > org.apache.wicket.markup.html.basic.Label, isVisible = true, isVersioned = > false, markup = [markup = > file:/var/lib/openshift/592dc27b89f5cfabc700006d/app- > root/data/apache-tomcat-8.5.15/webapps/ROOT/WEB-INF/ > classes/org/apache/wicket/examples/hangman/Guess.html > <span wicket:id="word">WICK_T</span>, index = 0, current = '<span > wicket:id="word">' (line 0, column 0)]] > at > org.apache.wicket.Component.getDefaultModelObject(Component.java:1651) > at > org.apache.wicket.Component.getDefaultModelObjectAsString( > Component.java:1672) > at > org.apache.wicket.markup.html.basic.Label.onComponentTagBody(Label.java: > 115) > at > org.apache.wicket.markup.html.panel.DefaultMarkupSourcingStrategy. > onComponentTagBody(DefaultMarkupSourcingStrategy.java:70) > at > org.apache.wicket.Component.internalRenderComponent(Component.java:2595) > ... 40 more > Caused by: java.lang.NullPointerException > at > org.apache.wicket.examples.hangman.Guess.lambda$new$ > 1f219a47$1(Guess.java:45) > at > org.apache.wicket.Component.getDefaultModelObject(Component.java:1644) > > 2. > ERROR - DefaultExceptionMapper - Unexpected error occurred > org.jboss.weld.context.NonexistentConversationException: WELD-000321: No > conversation found to restore for id 2 > at > org.jboss.weld.context.AbstractConversationContext.initialize( > AbstractConversationContext.java:240) > at > org.jboss.weld.context.http.LazyHttpConversationContextImpl.initialize( > LazyHttpConversationContextImpl.java:90) > at > org.jboss.weld.context.http.LazyHttpConversationContextImp > l.checkContextInitialized(LazyHttpConversationContextImpl.java:124) > at > org.jboss.weld.context.AbstractConversationContext.getCurrentConversation( > AbstractConversationContext.java:483) > at > org.jboss.weld.bean.builtin.ConversationBean.newInstance( > ConversationBean.java:31) > at > org.jboss.weld.bean.builtin.ConversationBean.newInstance( > ConversationBean.java:16) > at > org.jboss.weld.bean.builtin.AbstractDecorableBuiltInBean.create( > AbstractDecorableBuiltInBean.java:52) > at > org.jboss.weld.context.AbstractContext.get(AbstractContext.java:96) > at > org.jboss.weld.bean.ContextualInstanceStrategy$ > DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100) > at > org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50) > at > org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance( > ContextBeanInstance.java:99) > at > org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke( > ProxyMethodHandler.java:99) > at > org.jboss.weldx.enterprise.context.Conversation$1584357708$Proxy$_$$_ > WeldClientProxy.getId(Unknown > Source) > at > org.apache.wicket.cdi.ConversationPropagator.onRequestHandlerResolved( > ConversationPropagator.java:108) > > 3. (fixed already) > ERROR - DefaultExceptionMapper - Unexpected error occurred > java.lang.NullPointerException > at > org.apache.wicket.core.request.handler.PageProvider. > getPageClass(PageProvider.java:261) > at > org.apache.wicket.core.request.handler.RenderPageRequestHandler. > getPageClass(RenderPageRequestHandler.java:163) > > 4. This one needs attention ! > ERROR - JavaSerializer - error writing object [Page class = > org.apache.wicket.examples.tree.NestedTreePage, id = 0, render count = 1]: > null > java.util.ConcurrentModificationException > at java.util.ArrayList.writeObject(ArrayList.java:766) > at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke( > DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1028) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) > at > java.io.ObjectOutputStream.writeOrdinaryObject( > ObjectOutputStream.java:1432) > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > at > java.io.ObjectOutputStream.defaultWriteFields( > ObjectOutputStream.java:1548) > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) > at > java.io.ObjectOutputStream.writeOrdinaryObject( > ObjectOutputStream.java:1432) > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > at > java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) > at > org.apache.wicket.serialize.java.JavaSerializer$ > SerializationCheckerObjectOutputStream.writeObjectOverride( > JavaSerializer.java:368) > at > java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) > at > org.apache.wicket.serialize.java.JavaSerializer.serialize( > JavaSerializer.java:82) > at > org.apache.wicket.pageStore.AbstractPageStore.serializePage( > AbstractPageStore.java:133) > at > org.apache.wicket.pageStore.DefaultPageStore.createSerializedPage( > DefaultPageStore.java:281) > at > org.apache.wicket.pageStore.DefaultPageStore.storePage( > DefaultPageStore.java:61) > at > org.apache.wicket.pageStore.AsynchronousPageStore$PageSavingRunnable.run( > AsynchronousPageStore.java:225) > at java.lang.Thread.run(Thread.java:748) > > > But none of them look bad enough to stop the app. > > Martin Grigorov > Wicket Training and Consulting > https://twitter.com/mtgrigorov > > On Mon, Jul 31, 2017 at 9:28 PM, Sebastien <seb...@gmail.com> wrote: > > > Hi Martin, > > > > Yes, that's what I was referring to. > > What I'm afraid of, is that this start & stop script may hide an > underlying > > problem... Do you remember such instabilities with examples7.x? > > > > Thanks & best regards, > > Sebastien. > > > > On Mon, Jul 31, 2017 at 8:18 PM, Martin Grigorov <mgrigo...@apache.org> > > wrote: > > > > > Hi Sebastien, > > > > > > Do you talk about the OpenShift deployment of examples8x ? > > > I've added start and stop action hook scripts for it and since then it > > > seems to work fine. > > > > > > Martin Grigorov > > > Wicket Training and Consulting > > > https://twitter.com/mtgrigorov > > > > > >
