[news.eclipse.technology.jsr220-orm] Re: Can't create connection

[Jeff Brown <brown_j@xxxxxxxxxx>]

I had the same problem (I expect everyone does).  I don't know what the 
status of the real fix for this is but a workaround is to make sure the 
database explorer view is open and visible before making a new 
connection.  See the following...

https://bugs.eclipse.org/bugs/show_bug.cgi?id=109242
https://bugs.eclipse.org/bugs/show_bug.cgi?id=107700



jb

Sebastian Beigel wrote:
> Hi,
>
> I get a NPE using the JSR220-ORM M2 - even after a clean install of all 
> required packages from the download site:
>
> I try to add persistence to a project: Select "Hibernate EJB3" and MySQL 
> 4.0 (also tried it w/ MySQL 4.1 and Oracle 10) and click on 
> "Connection", enter all information ("Test Connection" is successful), 
> click "next", leave the filter disabled (also tried w/ filter: schemas 
> are recognized and shown, so the connection (still) works at this 
> point!) and hit "Finish" - nothing happens, the window doesn't close and 
> in the log is the following error:
>
> !ENTRY org.eclipse.ui 4 4 2005-09-17 16:23:52.320
> !MESSAGE Unhandled event loop exception
>
> !ENTRY org.eclipse.ui 4 0 2005-09-17 16:23:52.320
> !MESSAGE java.lang.NullPointerException
> !STACK 0
> java.lang.NullPointerException
>     at 
> org.eclipse.wst.rdb.server.internal.ui.explorer.content.ServerExplorerRefreshListener.notifyChanged(ServerExplorerRefreshListener.java:30) 
>
>     at 
> org.eclipse.wst.rdb.internal.core.rte.RefreshManager.referesh(RefreshManager.java:73) 
>
>     at 
> org.eclipse.wst.rdb.internal.core.rte.jdbc.JDBCDatabase.refresh(JDBCDatabase.java:49) 
>
>     at 
> org.eclipse.wst.rdb.server.internal.ui.wizards.NewConnectionWizard.performFinish(NewConnectionWizard.java:258) 
>
>     at 
> org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:676)
>     at 
> org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:349)
>     at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:556)
>     at 
> org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
>     at org.eclipse.jface.window.Window.runEventLoop(Window.java:809)
>     at org.eclipse.jface.window.Window.open(Window.java:787)
>     at 
> org.eclipse.wst.rdb.server.internal.ui.explorer.actions.popup.AddConnectionAction.run(AddConnectionAction.java:65) 
>
>     at 
> org.eclipse.jsr220orm.ui.internal.properties.SelectProductComposite$3.mouseDown(SelectProductComposite.java:259) 
>
>     at 
> org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:133)
>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
>     at org.eclipse.jface.window.Window.runEventLoop(Window.java:809)
>     at org.eclipse.jface.window.Window.open(Window.java:787)
>     at 
> org.eclipse.jsr220orm.ui.internal.popup.actions.AddPersistenceAction.run(AddPersistenceAction.java:37) 
>
>     at 
> org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:246)
>     at 
> org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538) 
>
>     at 
> org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488) 
>
>     at 
> org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400) 
>
>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
>     at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
>     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
>     at 
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
>     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
>     at 
> org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
>     at 
> org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226) 
>
>     at 
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376) 
>
>     at 
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163) 
>
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
>
>     at java.lang.reflect.Method.invoke(Method.java:585)
>     at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
>     at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
>     at org.eclipse.core.launcher.Main.run(Main.java:973)
>     at org.eclipse.core.launcher.Main.main(Main.java:948)
>
>
> Any ideas on this one?
>
> Regards,
> Sebastian


--
Jeff Brown
brown_j@xxxxxxxxxx
Principal Software Engineer
Object Computing Inc.
http://www.ociweb.com/

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