Bug 133059 [Markers] CCE when switching Problems view grouping
I20060322-1335 I switched Problems view grouping from Java Problem Type to Type while a background build was going on. !ENTRY org.eclipse.core.jobs 4 2 2006-03-23 20:36:24.465 !MESSAGE An internal error occurred during: "Process resource updates". !STACK 0 java.lang.ClassCastException: org.eclipse.ui.views.markers.internal.MarkerGroupingEntry at org.eclipse.ui.views.markers.internal.FieldCategory.getValue(FieldCategory.java:66) at org.eclipse.ui.views.markers.internal.FieldCategory.compare(FieldCategory.java:88) at org.eclipse.ui.views.markers.internal.CategorySorter.compare(CategorySorter.java:59) at org.eclipse.ui.views.markers.internal.CategorySorter.compare(CategorySorter.java:73) at org.eclipse.jface.viewers.ViewerComparator$1.compare(ViewerComparator.java:184) at java.util.Arrays.mergeSort(Arrays.java:1284) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1295) at java.util.Arrays.mergeSort(Arrays.java:1295) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.mergeSort(Arrays.java:1296) at java.util.Arrays.sort(Arrays.java:1223) at org.eclipse.jface.viewers.ViewerComparator.sort(ViewerComparator.java:182) at org.eclipse.ui.views.markers.internal.MarkerAdapter.buildAllMarkers(MarkerAdapter.java:240) at org.eclipse.ui.views.markers.internal.MarkerView.updateForContentsRefresh(MarkerView.java:412) at org.eclipse.ui.views.markers.internal.MarkerView$MarkerProcessJob.run(MarkerView.java:146) 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
String status = Util.EMPTY_STRING;
		int filteredCount = getCurrentMarkers().getItemCount();
		int totalCount = getTotalMarkers();
		if (filteredCount == totalCount) {
			status = NLS.bind(MarkerMessages.filter_itemsMessage, new Integer(
					totalCount));
		} else {
			status = NLS.bind(MarkerMessages.filter_matchedMessage,
					new Integer(filteredCount), new Integer(totalCount));
		}
		setContentDescription(status);
	}
	/**
	 * Updates the message displayed in the status line. This method is invoked
	 * in the following cases:
	 * <ul>
	 * <li>when this view is first created</li>
	 * <li>when new elements are added</li>
	 * <li>when something is deleted</li>
	 * <li>when the filters change</li>
	 * </ul>
	 * <p>
	 * By default, this method calls
	 * <code>updateStatusMessage(IStructuredSelection)</code> with the current
	 * selection or <code>null</code>. Classes wishing to override this
	 * functionality, should just override the method
	 * <code>updateStatusMessage(IStructuredSelection)</code>.
	 * </p>
	 */
	protected void updateStatusMessage() {