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
countUpdateJob.schedule();
		if (getSite().getShell().getDisplay().getThread() == Thread
				.currentThread())
			return; 
		try {
			countUpdateJob.join();
		} catch (InterruptedException e) {
			return;
		}
	}
	/**
	 * Returns the marker limit or -1 if unlimited
	 * 
	 * @return int
	 */
	int getMarkerLimit() {
		
		if (IDEWorkbenchPlugin.getDefault().getPreferenceStore().getBoolean(
				getMarkerEnablementPreferenceName())) {
			return IDEWorkbenchPlugin.getDefault().getPreferenceStore().getInt(
					getMarkerLimitPreferenceName());
		}
		return -1;
	}
	/**
	 * Get the name of the marker limit preference.
	 * 
	 * @return String
	 */
	abstract String getMarkerEnablementPreferenceName();