Make sure you properly initialize the object referenced by the form. The onPrepare() method is a good place to do that.
Am 02.08.2013 um 09:06 schrieb "Will N." <llcool_wil...@yahoo.fr>: > 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$5.invoke(ComponentPageElementImpl.java:1054) > at > org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74) > at > org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87) > at > org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1124) > at > org.apache.tapestry5.internal.structure.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:146) > at > org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1053) > at > org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.triggerContextEvent(InternalComponentResourcesImpl.java:302) > at > org.apache.tapestry5.corelib.components.Form.advised$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.ComponentPageElementResourcesImpl.invoke(ComponentPageElementResourcesImpl.java:146) > at > org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1053) > at > org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:81) > at > org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.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.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.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 $RequestHandler_46d5fa76bd59.service(Unknown Source) > at > org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.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-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
