Bug 307405 [CommonNavigator] Deadlock in NavigatorContentServiceContentProvider
We are using an adopting product and one of our users encountered this deadlock when starting up their workspace: 1LKDEADLOCK Deadlock detected !!! NULL --------------------- NULL 2LKDEADLOCKTHR Thread "main" (0x41591300) 3LKDEADLOCKWTR is waiting for: 4LKDEADLOCKMON sys_mon_t:0x43134548 infl_mon_t: 0x43134580: 4LKDEADLOCKOBJ org/eclipse/ui/internal/navigator/NavigatorSaveablesService@0x05DB48A8/0x05DB48B4: 3LKDEADLOCKOWN which is owned by: 2LKDEADLOCKTHR Thread "Framework Event Dispatcher" (0x42467700) 3LKDEADLOCKWTR which is waiting for: 4LKDEADLOCKMON sys_mon_t:0x43BA6AB8 infl_mon_t: 0x43BA6AF0: 4LKDEADLOCKOBJ org/eclipse/ui/internal/navigator/NavigatorContentServiceContentProvider@0x0306F6E8/0x0306F6F4: 3LKDEADLOCKOWN which is owned by: 2LKDEADLOCKTHR Thread "main" (0x41591300) I will attach the stack trace.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/NavigatorContentService.java
if (navigatorActivationService == null) {
			navigatorActivationService = new NavigatorActivationService(this);
		}
		return navigatorActivationService;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.navigator.INavigatorContentService#getSaveableService()
	 */
	public INavigatorSaveablesService getSaveablesService() {
		synchronized (this) {
			if (navigatorSaveablesService == null) {
				navigatorSaveablesService = new NavigatorSaveablesService(this);
				assistant.addListener(navigatorSaveablesService);
			}
			return navigatorSaveablesService;
		}
	}
	/**
	 * Not API as of 3.3.
	 * 
	 * @return The extension state service for this content service.
	 * 
	 */
	public NavigatorExtensionStateService getExtensionStateService() {
		if (navigatorExtensionStateService == null) {
			navigatorExtensionStateService = new NavigatorExtensionStateService(
					this);