It happens because your entity is null. It can be because you didn't initialize it in prepare for submit handler or with page activation context.
On Fri, Aug 2, 2013 at 10:06 AM, Will N. <llcool_wil...@yahoo.fr> wrote: > Hi, > i have some issues trying to save an Entitie in the database after filling > the coresponding form. In fact i figured out that the Entity(Object) is > Null after a press the save button of the form. This is confusing because I > do not have this effect with other entities and forms of my application. > Debug took me to the LoggingAdvice.class. Any idea what i am doing wrong? > > Thanks! > > Will > > [DEBUG] projekt.AnlegenProjekt [ FAIL] onSuccess -- > java.lang.NullPointerException > java.lang.NullPointerException > at com.example.pms.pages.projekt.**AnlegenProjekt.advised$** > onSuccess_46d5fa76bdf8(**AnlegenProjekt.java:161) > at com.example.pms.pages.projekt.**AnlegenProjekt$Invocation_** > onSuccess_46d5fa76bdf7.**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:45) > at org.apache.tapestry5.internal.**plastic.**AbstractMethodInvocation. > **proceed(**AbstractMethodInvocation.java:**86) > at com.example.pms.pages.projekt.**AnlegenProjekt.onSuccess(** > AnlegenProjekt.java) > at com.example.pms.pages.projekt.**AnlegenProjekt.** > dispatchComponentEvent(**AnlegenProjekt.java) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**dispatchEvent(**ComponentPageElementImpl.java:* > *927) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**processEventTriggering(** > ComponentPageElementImpl.java:**1112) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**access$3100(**ComponentPageElementImpl.java:** > 61) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl$5.**invoke(**ComponentPageElementImpl.java:** > 1057) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl$5.**invoke(**ComponentPageElementImpl.java:** > 1054) > at org.apache.tapestry5.ioc.**internal.OperationTrackerImpl.** > invoke(OperationTrackerImpl.**java:74) > at org.apache.tapestry5.ioc.**internal.**PerThreadOperationTracker.** > invoke(**PerThreadOperationTracker.**java:87) > at org.apache.tapestry5.ioc.**internal.RegistryImpl.invoke(** > RegistryImpl.java:1124) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementResourcesI**mpl.invoke(** > ComponentPageElementResourcesI**mpl.java:146) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**triggerContextEvent(** > ComponentPageElementImpl.java:**1053) > at org.apache.tapestry5.internal.**structure.** > InternalComponentResourcesImpl**.triggerContextEvent(** > InternalComponentResourcesImpl**.java:302) > at org.apache.tapestry5.corelib.**components.Form.advised$** > onAction_46d5fa76bdd6(Form.**java:545) > at org.apache.tapestry5.corelib.**components.Form$Invocation_** > onAction_46d5fa76bdd5.**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:* > *927) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**processEventTriggering(** > ComponentPageElementImpl.java:**1112) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**access$3100(**ComponentPageElementImpl.java:** > 61) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl$5.**invoke(**ComponentPageElementImpl.java:** > 1057) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl$5.**invoke(**ComponentPageElementImpl.java:** > 1054) > 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:1124) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementResourcesI**mpl.invoke(** > ComponentPageElementResourcesI**mpl.java:146) > at org.apache.tapestry5.internal.**structure.** > ComponentPageElementImpl.**triggerContextEvent(** > ComponentPageElementImpl.java:**1053) > at org.apache.tapestry5.internal.**services.** > ComponentEventRequestHandlerIm**pl.handle(**ComponentEventRequestHandlerIm > **pl.java:81) > at org.apache.tapestry5.internal.**services.** > ImmediateActionRenderResponseF**ilter.handle(** > ImmediateActionRenderResponseF**ilter.java:42) > at $ComponentEventRequestHandler_**46d5fa76be69.handle(Unknown Source) > at org.apache.tapestry5.internal.**services.AjaxFilter.handle(** > AjaxFilter.java:42) > at $ComponentEventRequestHandler_**46d5fa76be69.handle(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$41.handle(** > TapestryModule.java:2476) > at $ComponentEventRequestHandler_**46d5fa76be69.handle(Unknown Source) > at $ComponentEventRequestHandler_**46d5fa76bd6e.handle(Unknown Source) > at org.apache.tapestry5.internal.**services.** > ComponentRequestHandlerTermina**tor.handleComponentEvent(** > ComponentRequestHandlerTermina**tor.java:43) > at org.apache.tapestry5.services.**InitializeActivePageName.** > handleComponentEvent(**InitializeActivePageName.java:**39) > at $ComponentRequestHandler_**46d5fa76bd70.**handleComponentEvent(Unknown > Source) > at $ComponentRequestHandler_**46d5fa76bd68.**handleComponentEvent(Unknown > Source) > at org.apache.tapestry5.internal.**services.** > ComponentEventDispatcher.**dispatch(**ComponentEventDispatcher.java:**46) > at $Dispatcher_46d5fa76bd6b.**dispatch(Unknown Source) > at $Dispatcher_46d5fa76bd65.**dispatch(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$** > RequestHandlerTerminator.**service(TapestryModule.java:**302) > at org.apache.tapestry5.internal.**services.RequestErrorFilter.** > service(RequestErrorFilter.**java:26) > at $RequestHandler_46d5fa76bd66.**service(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$3.service(** > TapestryModule.java:902) > at $RequestHandler_46d5fa76bd66.**service(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$2.service(** > TapestryModule.java:892) > at $RequestHandler_46d5fa76bd66.**service(Unknown Source) > at org.apache.tapestry5.internal.**services.StaticFilesFilter.** > service(StaticFilesFilter.**java:90) > at $RequestHandler_46d5fa76bd66.**service(Unknown Source) > at com.example.pms.services.**PmsModule$1.service(PmsModule.** > java:143) > at $RequestFilter_46d5fa76bd60.**service(Unknown Source) > at $RequestHandler_46d5fa76bd66.**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_46d5fa76bd66.**service(Unknown Source) > at $RequestHandler_46d5fa76bd59.**service(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$** > HttpServletRequestHandlerTermi**nator.service(TapestryModule.**java:253) > at org.apache.tapestry5.internal.**gzip.GZipFilter.service(** > GZipFilter.java:53) > at $HttpServletRequestHandler_**46d5fa76bd5b.service(Unknown Source) > at org.apache.tapestry5.internal.**services.IgnoredPathsFilter.** > service(IgnoredPathsFilter.**java:62) > at $HttpServletRequestFilter_**46d5fa76bd57.service(Unknown Source) > at $HttpServletRequestHandler_**46d5fa76bd5b.service(Unknown Source) > at org.apache.tapestry5.services.**TapestryModule$1.service(** > TapestryModule.java:852) > at $HttpServletRequestHandler_**46d5fa76bd5b.service(Unknown Source) > at $HttpServletRequestHandler_**46d5fa76bd56.service(Unknown Source) > at org.apache.tapestry5.**TapestryFilter.doFilter(** > TapestryFilter.java:171) > at org.mortbay.jetty.servlet.**ServletHandler$CachedChain.** > doFilter(ServletHandler.java:**1212) > at org.mortbay.jetty.servlet.**ServletHandler.handle(** > ServletHandler.java:399) > at org.mortbay.jetty.security.**SecurityHandler.handle(** > SecurityHandler.java:216) > at org.mortbay.jetty.servlet.**SessionHandler.handle(** > SessionHandler.java:182) > at org.mortbay.jetty.handler.**ContextHandler.handle(** > ContextHandler.java:766) > at org.mortbay.jetty.webapp.**WebAppContext.handle(** > WebAppContext.java:450) > at org.mortbay.jetty.handler.**HandlerWrapper.handle(** > HandlerWrapper.java:152) > at org.mortbay.jetty.Server.**handle(Server.java:326) > at org.mortbay.jetty.**HttpConnection.handleRequest(** > HttpConnection.java:542) > at org.mortbay.jetty.**HttpConnection$RequestHandler.** > content(HttpConnection.java:**945) > at org.mortbay.jetty.HttpParser.**parseNext(HttpParser.java:756) > at org.mortbay.jetty.HttpParser.**parseAvailable(HttpParser.** > java:218) > at org.mortbay.jetty.**HttpConnection.handle(** > HttpConnection.java:404) > at org.mortbay.io.nio.**SelectChannelEndPoint.run(** > SelectChannelEndPoint.java:**410) > at org.mortbay.thread.**QueuedThreadPool$PoolThread.** > run(QueuedThreadPool.java:582) > > ------------------------------**------------------------------**--------- > To unsubscribe, e-mail: > users-unsubscribe@tapestry.**apache.org<users-unsubscr...@tapestry.apache.org> > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- BR Ivan
