Can you try accessing the field metaBpList before sending the Entity to the client?
Thanks, Rick On Fri, Nov 11, 2011 at 8:32 AM, M. Walter <marc.wal...@sbb.ch> wrote: > Hi Rick, > > detach state property configuration is: > <property name="openjpa.DetachState" > value="fetch-groups(DetachedStateField=true)" /> > > We need this because we would like to delete values of fields (set them to > null in the database explicitly). > > Here's the stack trace: > > java.lang.NullPointerException > at xx.xxx.xxxxx.common.entity.stammdaten.Bp.addMetaBp(Bp.java:804) > at xx.xxx.xxxxx.common.entity.stammdaten.MetaBp.addBp(MetaBp.java:145) > at > > xx.xxx.xxxxx.rcp.stammdaten.internal.ui.editors.metabp.MetaBpEditor$1.run(MetaBpEditor.java:209) > at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) > at > > org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) > at > > org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) > at > > org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) > at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) > at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) > at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066) > at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657) > at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) > at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) > at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) > at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) > at > > org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) > at > org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) > at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) > at > > xx.xxx.xxxxx.rcp.internal.ui.application.Application.start(Application.java:56) > at > > org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) > at > > org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) > at > > org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) > at > > org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) > at > > org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) > at > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) > at java.lang.reflect.Method.invoke(Method.java:600) > at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620) > at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) > at org.eclipse.equinox.launcher.Main.run(Main.java:1408) > at org.eclipse.equinox.launcher.Main.main(Main.java:1384) > > > And here's the requested file: > http://openjpa.208410.n2.nabble.com/file/n6985542/Bp.class Bp.class > > -- > View this message in context: > http://openjpa.208410.n2.nabble.com/Strange-behaviour-on-ManyToMany-relationship-using-RCP-client-tp6985422p6985542.html > Sent from the OpenJPA Users mailing list archive at Nabble.com. > -- *Rick Curtis*
