Bug 120736 [Markers] NPE during: "Fetching children of Problems".
[I20051213-0010, Windows XP] I can only reproduce this in my inner workspace, not in the outer one. It happens when I selected "New Window" and then close the new window immediately. java.lang.NullPointerException at org.eclipse.ui.views.markers.internal.MarkerView.scheduleCountUpdate(MarkerView.java:1432) at org.eclipse.ui.views.markers.internal.MarkerAdapter.fetchDeferredChildren(MarkerAdapter.java:201) at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:192) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
pasteAction = new ActionPasteMarker(this, getViewer());
		pasteAction.setClipboard(clipboard);
		pasteAction.setPastableTypes(getMarkerTypes());
		deleteAction = new ActionRemoveMarker(this, getViewer());
		selectAllAction = new ActionSelectAll(this);
		propertiesAction = new ActionMarkerProperties(this, getViewer());
		super.createActions();
		setFilterAction(new FiltersAction(this));
		setPreferencesAction(new ViewPreferencesAction() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.ui.preferences.ViewPreferencesAction#openViewPreferencesDialog()
			 */
			public void openViewPreferencesDialog() {
				openPreferencesDialog(getMarkerEnablementPreferenceName(),
						getMarkerLimitPreferenceName());
			}
		});
	}
	/**
	 * Open a dialog to set the preferences.
	 * 
	 * @param markerEnablementPreferenceName
	 * @param markerLimitPreferenceName
	 */
	private void openPreferencesDialog(String markerEnablementPreferenceName,
			String markerLimitPreferenceName) {
		Dialog dialog = new MarkerViewPreferenceDialog(getSite()
				.getWorkbenchWindow().getShell(),