IllegalStateException: Preference node "org.eclipse.jdt.core" has been removed.

[eclipse-jdt]

IllegalStateException: Preference node "org.eclipse.jdt.core" has been removed.

[HannesWell]

After closing/reopening the projects the error usually vanish.

[iloveeclipse]

After closing/reopening the projects the error usually vanish.

Sounds like a caching issue in org.eclipse.jdt.internal.core.JavaProject.getEclipsePreferences()

I guess this code should catch the exception and clear the cache / request new version on error:
[ // Get cached preferences if exist](

eclipse.jdt.core/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/JavaProject.java

Line 1919 in 767bffa

// Get cached preferences if exist

)

and probably a side effect of https://git.eclipse.org/r/c/platform/eclipse.platform.resources/+/192164

[HannesWell]

Thank you Andrey for your fix!

[iloveeclipse]

Thank you Andrey for your fix!

Please if you use nightly builds, check the next one if that helped or not.

[HannesWell]

I'll try to do that, but from my experience by Oomph-provisioned IDE I use daily it does not work to add the I-build repository as another source. But I will try it again.

[HannesWell]

The good news is I was able to use the I-builds repo in my Oomph setup (it was supprisingly simple. Just had to add the I-builds repo to my Installations P2-Director Task).

The bad news is this error still occurs (but in my subjective impression less frequent):

org.eclipse.ui.PartInitException: Editor could not be initialized.
	at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3195)
	at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3204)
	at org.eclipse.ui.internal.EditorReference.initialize(EditorReference.java:353)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:344)
	at jdk.internal.reflect.GeneratedMethodAccessor89.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:995)
	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:960)
	at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:140)
	at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:403)
	at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:330)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:202)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:91)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:60)
	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:42)
	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:132)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:995)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:659)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:763)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:728)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:712)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.lambda$0(PartServiceImpl.java:105)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.lambda$0(UIEventHandler.java:38)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:236)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:5967)
	at org.eclipse.e4.ui.workbench.swt.DisplayUISynchronize.syncExec(DisplayUISynchronize.java:34)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:205)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:203)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:133)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:75)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:44)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:55)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:63)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
	at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElementGen(ElementContainerImpl.java:170)
	at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:188)
	at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:660)
	at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:624)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:787)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:401)
	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1261)
	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3207)
	at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3097)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3095)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3065)
	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3056)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:569)
	at org.eclipse.ui.ide.IDE.openEditor(IDE.java:524)
	at org.eclipse.egit.ui.internal.EgitUiEditorUtils.openEditor(EgitUiEditorUtils.java:169)
	at org.eclipse.egit.ui.internal.commit.DiffViewer.openFileInEditor(DiffViewer.java:813)
	at org.eclipse.egit.ui.internal.history.CommitFileDiffViewer$8.lambda$0(CommitFileDiffViewer.java:281)
	at org.eclipse.egit.ui.internal.history.CommitFileDiffViewer.lambda$4(CommitFileDiffViewer.java:407)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at org.eclipse.egit.ui.internal.history.CommitFileDiffViewer.withSelection(CommitFileDiffViewer.java:405)
	at org.eclipse.egit.ui.internal.history.CommitFileDiffViewer$8.run(CommitFileDiffViewer.java:275)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:474)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:580)
	at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:414)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5850)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1529)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5081)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4533)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
Caused by: java.lang.IllegalStateException: Preference node "org.eclipse.jdt.core" has been removed.
	at org.eclipse.core.internal.preferences.EclipsePreferences.checkRemoved(EclipsePreferences.java:165)
	at org.eclipse.core.internal.resources.ProjectPreferences.internalGet(ProjectPreferences.java:495)
	at org.eclipse.core.internal.preferences.EclipsePreferences.get(EclipsePreferences.java:444)
	at org.eclipse.jdt.internal.core.JavaModelManager.getOption(JavaModelManager.java:2311)
	at org.eclipse.jdt.internal.core.JavaProject.getOption(JavaProject.java:2148)
	at org.eclipse.jdt.internal.core.JavaModelManager.determineIfOnClasspath(JavaModelManager.java:1156)
	at org.eclipse.jdt.internal.core.JavaModelManager.createCompilationUnitFrom(JavaModelManager.java:1094)
	at org.eclipse.jdt.internal.core.JavaModelManager.create(JavaModelManager.java:1010)
	at org.eclipse.jdt.core.JavaCore.create(JavaCore.java:3600)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.createCompilationUnit(CompilationUnitDocumentProvider.java:979)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.createFileInfo(CompilationUnitDocumentProvider.java:1013)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider.connect(TextFileDocumentProvider.java:481)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.connect(CompilationUnitDocumentProvider.java:1284)
	at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(AbstractTextEditor.java:4172)
	at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(StatusTextEditor.java:262)
	at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetInput(AbstractDecoratedTextEditor.java:1479)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.internalDoSetInput(JavaEditor.java:2554)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.doSetInput(JavaEditor.java:2527)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSetInput(CompilationUnitEditor.java:1411)
	at org.eclipse.ui.texteditor.AbstractTextEditor.lambda$1(AbstractTextEditor.java:3162)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:434)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:352)
	at org.eclipse.ui.internal.WorkbenchWindow.lambda$7(WorkbenchWindow.java:2345)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:74)
	at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2343)
	at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3179)
	... 93 more

[HannesWell]

OK hold on, I'm still using org.eclipse.jdt.core - 3.30.0.v20220404-0943 (which is 2022-06 M1).
Sorry I did not read the date part of the build-qualifier to end with 0504 and thought it was from yesterday, but it is from one month ago. So obviously I'm not using the I-builds.

So please just disregard my last comment. Sorry for the disturbance.