Re: [eclipselink-dev] Error trying EclipseLink preferences on Juno M6

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Re: [eclipselink-dev] Error trying EclipseLink preferences on Juno M6

From: Neil Hauge <neil.hauge@xxxxxxxxxx>
Date: Mon, 19 Mar 2012 16:40:22 -0400
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Hi Cristiano,

It sounds like you have a mid M6 build which had a bug affecting our project preferences. This bug was fixed several weeks ago, so more recent M6 builds should resolve the issue. The final WTP Juno M6 build will be declared tomorrow.

Thanks for bringing this to our attention.

Neil

On 3/19/2012 2:32 PM, Cristiano Gavião wrote:

Hi, answers below...

On 19/03/12 12:07, Karen Butzke wrote:
This is a tooling issue, so the Eclipse Dali forums would be the best place for this question.
well, you are probably right. but my intention was to help, calling attention of eclipselink team about a found problem that for me initially was only EclipseLink related... :)

I've informed Dali's team too, after I figured out that org.eclipse.jpt.jpa.eclipselink.ui.internal.weave.EclipselinkPreferencePage was installed by a Dali feature.

How have you installed Eclipse Juno M6?
I've downloaded Juno M6 from eclipse download site and have installed Dali with EclipseLink support feature from Juno repository using the "install new software".

I can only get the EclipseLink specific preferences if I look at project preferences instead of workspace preferences.
In macos, I can see this at workspace preferences:

- Java Persistence
-- JPA
--- EclipseLink <--- where I get error
--- Errors/Warnings

-- JPA <- duplicated item

Do you have any issues if you select project Properties -> JPA ->EclipseLink? Currently these preferences are only used to configure EclipseLink static weaving during build.
I can only get JPA project specific properties when the selected project has a JPA nature, and I'm accessing it without error.

Was there any more information in the error log, perhaps a longer stacktrace?

At error log I see this:

java.lang.ClassCastException: org.eclipse.jpt.jpa.eclipselink.ui.internal.weave.EclipselinkPreferencePage cannot be cast to org.eclipse.ui.IWorkbenchPreferencePage
    at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:47)
    at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1340)
    at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:377)
    at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1231)
    at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:675)
    at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:709)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:705)
    at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
    at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:886)
    at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226)
    at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251)
    at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262)
    at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256)
    at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3940)
    at org.eclipse.swt.widgets.Display.observerProc(Display.java:3530)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Display.applicationNextEventMatchingMask(Display.java:4863)
    at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5213)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
    at org.eclipse.swt.widgets.Widget.mouseDownSuper(Widget.java:1092)
    at org.eclipse.swt.widgets.Tree.mouseDownSuper(Tree.java:2052)
    at org.eclipse.swt.widgets.Widget.mouseDown(Widget.java:1084)
    at org.eclipse.swt.widgets.Control.mouseDown(Control.java:2534)
    at org.eclipse.swt.widgets.Tree.mouseDown(Tree.java:2007)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5462)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
    at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2095)
    at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2262)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5526)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
    at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4976)
    at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5125)
    at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
    at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3612)
    at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
    at org.eclipse.jface.window.Window.open(Window.java:801)
    at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:215)
    at org.eclipse.ui.internal.handlers.ShowPreferencePageHandler.execute(ShowPreferencePageHandler.java:58)
    at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:72)
    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:597)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:229)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:210)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:161)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:142)
    at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.runCommand(CocoaUIHandler.java:768)
    at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler.access$9(CocoaUIHandler.java:756)
    at org.eclipse.e4.ui.workbench.renderers.swt.cocoa.CocoaUIHandler$7.widgetSelected(CocoaUIHandler.java:587)
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4130)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1457)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1480)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1465)
    at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1270)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3976)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3615)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1015)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:909)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:85)
    at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:580)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:535)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
    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:353)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
    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:597)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Karen

On 3/17/2012 11:01 AM, Cristiano Gavião wrote:
Hi, I got this error when trying too see JavaPersistence/JPA/EclipseLink preferences on Juno M6:

An error has occurred. See error log for more details.
org.eclipse.jpt.jpa.eclipselink.ui.internal.weave.EclipselinkPreferencePage cannot be cast to org.eclipse.ui.IWorkbenchPreferencePage

regards

Cristiano
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References:
- [eclipselink-dev] Error trying EclipseLink preferences on Juno M6
  - From: Cristiano Gavião
- Re: [eclipselink-dev] Error trying EclipseLink preferences on Juno M6
  - From: Karen Butzke
- Re: [eclipselink-dev] Error trying EclipseLink preferences on Juno M6
  - From: Cristiano Gavião

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