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2019-12: - Right click perspective icon, select "Customize ..." - Modify Action Set Availability and Toolbar Visibility - Click "Apply and Close" Expected output: Dialog is closed Actual output: Nothing happens, i.e. dialog stays open I found the following in the log: eclipse.buildId=4.14.0.I20191210-0610 java.version=11.0.4 java.vendor=Azul Systems, Inc. BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US Framework arguments: -product org.eclipse.epp.package.committers.product -product org.eclipse.epp.package.committers.product -product org.eclipse.epp.package.committers.product -keyring /Users/gwagenknecht/.eclipse_keyring Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.committers.product -product org.eclipse.epp.package.committers.product -product org.eclipse.epp.package.committers.product -keyring /Users/gwagenknecht/.eclipse_keyring This is a continuation of log file /Users/gwagenknecht/Development/workspaces/tycho-dev/.metadata/.bak_0.log Created Time: 2020-01-01 17:36:45.353 org.eclipse.ui Error Wed Jan 01 17:37:59 CET 2020 Unhandled event loop exception org.eclipse.jface.resource.DeviceResourceException: Unable to create resource URLImageDescriptor(platform:/plugin/org.eclipse.e4.tools.spy/icons/spyicon.png) at org.eclipse.jface.resource.ImageDescriptor.createResource(ImageDescriptor.java:183) at org.eclipse.jface.resource.DeviceResourceManager.allocate(DeviceResourceManager.java:55) at org.eclipse.jface.resource.AbstractResourceManager.create(AbstractResourceManager.java:88) at org.eclipse.jface.resource.LocalResourceManager.allocate(LocalResourceManager.java:72) at org.eclipse.jface.resource.AbstractResourceManager.create(AbstractResourceManager.java:88) at org.eclipse.jface.resource.ResourceManager.createImage(ResourceManager.java:175) at org.eclipse.jface.action.MenuManager.fill(MenuManager.java:277) at org.eclipse.jface.action.MenuManager.doItemFill(MenuManager.java:729) at org.eclipse.jface.action.MenuManager.update(MenuManager.java:806) at org.eclipse.jface.action.MenuManager.updateAll(MenuManager.java:921) at org.eclipse.jface.action.MenuManager.update(MenuManager.java:826) at org.eclipse.jface.action.MenuManager.updateAll(MenuManager.java:921) at org.eclipse.ui.internal.Perspective.updateActionBars(Perspective.java:257) at org.eclipse.ui.internal.dialogs.cpd.CustomizePerspectiveDialog.okPressed(CustomizePerspectiveDialog.java:2265) at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:468) at org.eclipse.jface.dialogs.Dialog.lambda$0(Dialog.java:619) at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4406) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1512) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1535) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1324) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4193) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3810) at org.eclipse.jface.window.Window.runEventLoop(Window.java:823) at org.eclipse.jface.window.Window.open(Window.java:799) at org.eclipse.ui.internal.WorkbenchPage.editActionSets(WorkbenchPage.java:1945) at org.eclipse.ui.internal.handlers.EditActionSetsHandler.execute(EditActionSetsHandler.java:38) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:283) at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:97) 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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58) at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:318) at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:252) at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173) at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487) at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213) at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:389) at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:366) at org.eclipse.e4.ui.workbench.addons.perspectiveswitcher.PerspectiveSwitcher.lambda$13(PerspectiveSwitcher.java:665) at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:84) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:252) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4406) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1512) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1535) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1324) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4193) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3810) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:660) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:559) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:154) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) 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:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Most likely a reincarnation of Bug 516119. Root cause of this issue is the spyicon.png that cannot be found (like in some other bugs submitted by you). However, these kind of failures should not result in the UI being broken.
