Hi!
The line 749, It's the first line of the delete method.
public List<UserSubscription> delete() {
final String title = container.titleOf(this);
final List<UserSubscription> returnList = null;
container.removeIfNotAlready(this);
container.informUser(
TranslatableString.tr("Deleted {title}", "title", title),
this.getClass(), "delete");
return returnList;
}
//endregion
________________________________
De: Dan Haywood <[email protected]>
Enviado: martes, 28 de agosto de 2018 01:44 p. m.
Para: [email protected]
Asunto: Re: Delete Error
At the end of that stack trace I see:
Caused by:
*
* java.lang.NullPointerException
*
*
domainapp.dom.simple.users.UserSubscription#delete(UserSubscription.java:749)
Which line is 749?
On Tue, 28 Aug 2018, 20:14 Aída Betzabeth Dávila Sotelo, <
[email protected]> wrote:
> Hi,
>
> I have the following method to delete an element of a class.
>
>
> //region > delete (events)
> public List<UserSubscription> delete() {
>
> final String title = container.titleOf(this);
> final List<UserSubscription> returnList = null;
> container.removeIfNotAlready(this);
> container.informUser(
> TranslatableString.tr("Deleted {title}", "title", title),
> this.getClass(), "delete");
>
> return returnList;
> }
> //endregion
>
> However, it started to fail and sent me the following error: Could you
> help me, what is causing it? or what can I check to remove it?
>
> Aída
>
> Stack trace:
>
> * org.apache.wicket.WicketRuntimeException
> * Method onRequest of interface
> org.apache.wicket.behavior.IBehaviorListener targeted at
> org.apache.wicket.ajax.markup.html.AjaxLink$1@5872c215 on component
> [AjaxLink [Component id = additionalLink]] threw an exception
> *
>
> org.apache.wicket.RequestListenerInterface#internalInvoke(RequestListenerInterface.java:268)
> *
>
> org.apache.wicket.RequestListenerInterface#invoke(RequestListenerInterface.java:241)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#invokeListener(ListenerInterfaceRequestHandler.java:250)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#respond(ListenerInterfaceRequestHandler.java:236)
> *
>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor#respond(RequestCycle.java:890)
> *
>
> org.apache.wicket.request.RequestHandlerStack#execute(RequestHandlerStack.java:64)
> *
> org.apache.wicket.request.cycle.RequestCycle#execute(RequestCycle.java:261)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequest(RequestCycle.java:218)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequestAndDetach(RequestCycle.java:289)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequestCycle(WicketFilter.java:259)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequest(WicketFilter.java:201)
> *
> org.apache.wicket.protocol.http.WicketFilter#doFilter(WicketFilter.java:282)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.isis.core.webapp.diagnostics.IsisLogOnExceptionFilter#doFilter(IsisLogOnExceptionFilter.java:52)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#executeChain(AbstractShiroFilter.java:449)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter$1#call(AbstractShiroFilter.java:365)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#doCall(SubjectCallable.java:90)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#call(SubjectCallable.java:83)
> *
>
> org.apache.shiro.subject.support.DelegatingSubject#execute(DelegatingSubject.java:383)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#doFilterInternal(AbstractShiroFilter.java:362)
> *
>
> org.apache.shiro.web.servlet.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:125)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
> org.eclipse.jetty.servlet.ServletHandler#doHandle(ServletHandler.java:581)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:143)
> *
> org.eclipse.jetty.security.SecurityHandler#handle(SecurityHandler.java:548)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doHandle(SessionHandler.java:226)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doHandle(ContextHandler.java:1158)
> *
> org.eclipse.jetty.servlet.ServletHandler#doScope(ServletHandler.java:511)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doScope(SessionHandler.java:185)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doScope(ContextHandler.java:1090)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:141)
> *
>
> org.eclipse.jetty.server.handler.HandlerWrapper#handle(HandlerWrapper.java:119)
> * org.eclipse.jetty.server.Server#handle(Server.java:517)
> * org.eclipse.jetty.server.HttpChannel#handle(HttpChannel.java:308)
> *
> org.eclipse.jetty.server.HttpConnection#onFillable(HttpConnection.java:242)
> * org.eclipse.jetty.io
> .AbstractConnection$ReadCallback#succeeded(AbstractConnection.java:261)
> * org.eclipse.jetty.io.FillInterest#fillable(FillInterest.java:95)
> * org.eclipse.jetty.io
> .SelectChannelEndPoint$2#run(SelectChannelEndPoint.java:75)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#produceAndRun(ExecuteProduceConsume.java:213)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#run(ExecuteProduceConsume.java:147)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool#runJob(QueuedThreadPool.java:654)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3#run(QueuedThreadPool.java:572)
> * java.lang.Thread#run(Thread.java:748)
> *
> * Caused by:
> *
> * java.lang.reflect.InvocationTargetException
> *
> *
>
> sun.reflect.NativeMethodAccessorImpl#invoke0(NativeMethodAccessorImpl.java:-2)
> *
> sun.reflect.NativeMethodAccessorImpl#invoke(NativeMethodAccessorImpl.java:62)
> *
>
> sun.reflect.DelegatingMethodAccessorImpl#invoke(DelegatingMethodAccessorImpl.java:43)
> * java.lang.reflect.Method#invoke(Method.java:498)
> *
>
> org.apache.wicket.RequestListenerInterface#internalInvoke(RequestListenerInterface.java:258)
> *
>
> org.apache.wicket.RequestListenerInterface#invoke(RequestListenerInterface.java:241)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#invokeListener(ListenerInterfaceRequestHandler.java:250)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#respond(ListenerInterfaceRequestHandler.java:236)
> *
>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor#respond(RequestCycle.java:890)
> *
>
> org.apache.wicket.request.RequestHandlerStack#execute(RequestHandlerStack.java:64)
> *
> org.apache.wicket.request.cycle.RequestCycle#execute(RequestCycle.java:261)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequest(RequestCycle.java:218)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequestAndDetach(RequestCycle.java:289)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequestCycle(WicketFilter.java:259)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequest(WicketFilter.java:201)
> *
> org.apache.wicket.protocol.http.WicketFilter#doFilter(WicketFilter.java:282)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.isis.core.webapp.diagnostics.IsisLogOnExceptionFilter#doFilter(IsisLogOnExceptionFilter.java:52)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#executeChain(AbstractShiroFilter.java:449)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter$1#call(AbstractShiroFilter.java:365)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#doCall(SubjectCallable.java:90)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#call(SubjectCallable.java:83)
> *
>
> org.apache.shiro.subject.support.DelegatingSubject#execute(DelegatingSubject.java:383)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#doFilterInternal(AbstractShiroFilter.java:362)
> *
>
> org.apache.shiro.web.servlet.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:125)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
> org.eclipse.jetty.servlet.ServletHandler#doHandle(ServletHandler.java:581)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:143)
> *
> org.eclipse.jetty.security.SecurityHandler#handle(SecurityHandler.java:548)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doHandle(SessionHandler.java:226)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doHandle(ContextHandler.java:1158)
> *
> org.eclipse.jetty.servlet.ServletHandler#doScope(ServletHandler.java:511)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doScope(SessionHandler.java:185)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doScope(ContextHandler.java:1090)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:141)
> *
>
> org.eclipse.jetty.server.handler.HandlerWrapper#handle(HandlerWrapper.java:119)
> * org.eclipse.jetty.server.Server#handle(Server.java:517)
> * org.eclipse.jetty.server.HttpChannel#handle(HttpChannel.java:308)
> *
> org.eclipse.jetty.server.HttpConnection#onFillable(HttpConnection.java:242)
> * org.eclipse.jetty.io
> .AbstractConnection$ReadCallback#succeeded(AbstractConnection.java:261)
> * org.eclipse.jetty.io.FillInterest#fillable(FillInterest.java:95)
> * org.eclipse.jetty.io
> .SelectChannelEndPoint$2#run(SelectChannelEndPoint.java:75)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#produceAndRun(ExecuteProduceConsume.java:213)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#run(ExecuteProduceConsume.java:147)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool#runJob(QueuedThreadPool.java:654)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3#run(QueuedThreadPool.java:572)
> * java.lang.Thread#run(Thread.java:748)
> *
> * Caused by:
> *
> * java.lang.NullPointerException
> *
> *
> domainapp.dom.simple.users.UserSubscription#delete(UserSubscription.java:749)
> *
>
> sun.reflect.NativeMethodAccessorImpl#invoke0(NativeMethodAccessorImpl.java:-2)
> *
> sun.reflect.NativeMethodAccessorImpl#invoke(NativeMethodAccessorImpl.java:62)
> *
>
> sun.reflect.DelegatingMethodAccessorImpl#invoke(DelegatingMethodAccessorImpl.java:43)
> * java.lang.reflect.Method#invoke(Method.java:498)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#invokeMethodElseFromCache(ActionInvocationFacetForDomainEventAbstract.java:408)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract$2#execute(ActionInvocationFacetForDomainEventAbstract.java:262)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract$2#execute(ActionInvocationFacetForDomainEventAbstract.java:223)
> *
>
> org.apache.isis.applib.services.iactn.Interaction#executeInternal(Interaction.java:173)
> *
>
> org.apache.isis.applib.services.iactn.Interaction#execute(Interaction.java:143)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#doInvoke(ActionInvocationFacetForDomainEventAbstract.java:311)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract$1#execute(ActionInvocationFacetForDomainEventAbstract.java:165)
> *
>
> org.apache.isis.core.runtime.system.transaction.IsisTransactionManager#executeWithinTransaction(IsisTransactionManager.java:143)
> *
>
> org.apache.isis.core.runtime.system.transaction.IsisTransactionManager#executeWithinTransaction(IsisTransactionManager.java:133)
> *
>
> org.apache.isis.core.runtime.services.persistsession.PersistenceSessionServiceInternalDefault#executeWithinTransaction(PersistenceSessionServiceInternalDefault.java:179)
> *
>
> org.apache.isis.core.metamodel.facets.actions.action.invocation.ActionInvocationFacetForDomainEventAbstract#invoke(ActionInvocationFacetForDomainEventAbstract.java:161)
> *
>
> org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionDefault#executeInternal(ObjectActionDefault.java:398)
> *
>
> org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionDefault#execute(ObjectActionDefault.java:387)
> *
>
> org.apache.isis.core.metamodel.specloader.specimpl.ObjectActionDefault#executeWithRuleChecking(ObjectActionDefault.java:368)
> *
>
> org.apache.isis.viewer.wicket.model.models.ActionModel#executeAction(ActionModel.java:483)
> *
>
> org.apache.isis.viewer.wicket.model.models.ActionModel#load(ActionModel.java:462)
> *
>
> org.apache.isis.viewer.wicket.model.models.ActionModel#load(ActionModel.java:80)
> *
>
> org.apache.wicket.model.LoadableDetachableModel#getObject(LoadableDetachableModel.java:124)
> *
>
> org.apache.isis.viewer.wicket.model.models.ActionModel#executeHandlingApplicationExceptions(ActionModel.java:568)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#executeActionOnTargetAndProcessResults(ActionPanel.java:255)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#executeAndProcessResults(ActionPanel.java:204)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#buildGuiForNoParameters(ActionPanel.java:162)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#buildGui(ActionPanel.java:104)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanel#<init>(ActionPanel.java:83)
> *
>
> org.apache.isis.viewer.wicket.ui.components.actions.ActionPanelFactory#createComponent(ActionPanelFactory.java:49)
> *
>
> org.apache.isis.viewer.wicket.viewer.registries.components.ComponentFactoryRegistryDefault#createComponent(ComponentFactoryRegistryDefault.java:128)
> *
>
> org.apache.isis.viewer.wicket.ui.components.widgets.linkandlabel.ActionLinkFactoryAbstract$1#onClick(ActionLinkFactoryAbstract.java:85)
> *
> org.apache.wicket.ajax.markup.html.AjaxLink$1#onEvent(AjaxLink.java:86)
> *
> org.apache.wicket.ajax.AjaxEventBehavior#respond(AjaxEventBehavior.java:146)
> *
>
> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior#onRequest(AbstractDefaultAjaxBehavior.java:641)
> *
>
> sun.reflect.NativeMethodAccessorImpl#invoke0(NativeMethodAccessorImpl.java:-2)
> *
> sun.reflect.NativeMethodAccessorImpl#invoke(NativeMethodAccessorImpl.java:62)
> *
>
> sun.reflect.DelegatingMethodAccessorImpl#invoke(DelegatingMethodAccessorImpl.java:43)
> * java.lang.reflect.Method#invoke(Method.java:498)
> *
>
> org.apache.wicket.RequestListenerInterface#internalInvoke(RequestListenerInterface.java:258)
> *
>
> org.apache.wicket.RequestListenerInterface#invoke(RequestListenerInterface.java:241)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#invokeListener(ListenerInterfaceRequestHandler.java:250)
> *
>
> org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler#respond(ListenerInterfaceRequestHandler.java:236)
> *
>
> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor#respond(RequestCycle.java:890)
> *
>
> org.apache.wicket.request.RequestHandlerStack#execute(RequestHandlerStack.java:64)
> *
> org.apache.wicket.request.cycle.RequestCycle#execute(RequestCycle.java:261)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequest(RequestCycle.java:218)
> *
>
> org.apache.wicket.request.cycle.RequestCycle#processRequestAndDetach(RequestCycle.java:289)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequestCycle(WicketFilter.java:259)
> *
>
> org.apache.wicket.protocol.http.WicketFilter#processRequest(WicketFilter.java:201)
> *
> org.apache.wicket.protocol.http.WicketFilter#doFilter(WicketFilter.java:282)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.isis.core.webapp.diagnostics.IsisLogOnExceptionFilter#doFilter(IsisLogOnExceptionFilter.java:52)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#executeChain(AbstractShiroFilter.java:449)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter$1#call(AbstractShiroFilter.java:365)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#doCall(SubjectCallable.java:90)
> *
>
> org.apache.shiro.subject.support.SubjectCallable#call(SubjectCallable.java:83)
> *
>
> org.apache.shiro.subject.support.DelegatingSubject#execute(DelegatingSubject.java:383)
> *
>
> org.apache.shiro.web.servlet.AbstractShiroFilter#doFilterInternal(AbstractShiroFilter.java:362)
> *
>
> org.apache.shiro.web.servlet.OncePerRequestFilter#doFilter(OncePerRequestFilter.java:125)
> *
>
> org.eclipse.jetty.servlet.ServletHandler$CachedChain#doFilter(ServletHandler.java:1668)
> *
> org.eclipse.jetty.servlet.ServletHandler#doHandle(ServletHandler.java:581)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:143)
> *
> org.eclipse.jetty.security.SecurityHandler#handle(SecurityHandler.java:548)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doHandle(SessionHandler.java:226)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doHandle(ContextHandler.java:1158)
> *
> org.eclipse.jetty.servlet.ServletHandler#doScope(ServletHandler.java:511)
> *
>
> org.eclipse.jetty.server.session.SessionHandler#doScope(SessionHandler.java:185)
> *
>
> org.eclipse.jetty.server.handler.ContextHandler#doScope(ContextHandler.java:1090)
> *
> org.eclipse.jetty.server.handler.ScopedHandler#handle(ScopedHandler.java:141)
> *
>
> org.eclipse.jetty.server.handler.HandlerWrapper#handle(HandlerWrapper.java:119)
> * org.eclipse.jetty.server.Server#handle(Server.java:517)
> * org.eclipse.jetty.server.HttpChannel#handle(HttpChannel.java:308)
> *
> org.eclipse.jetty.server.HttpConnection#onFillable(HttpConnection.java:242)
> * org.eclipse.jetty.io
> .AbstractConnection$ReadCallback#succeeded(AbstractConnection.java:261)
> * org.eclipse.jetty.io.FillInterest#fillable(FillInterest.java:95)
> * org.eclipse.jetty.io
> .SelectChannelEndPoint$2#run(SelectChannelEndPoint.java:75)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#produceAndRun(ExecuteProduceConsume.java:213)
> *
>
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume#run(ExecuteProduceConsume.java:147)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool#runJob(QueuedThreadPool.java:654)
> *
>
> org.eclipse.jetty.util.thread.QueuedThreadPool$3#run(QueuedThreadPool.java:572)
> * java.lang.Thread#run(Thread.java:748)
>
> --
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