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 contextId = null;
			
			ConcreteMarker marker = (ConcreteMarker) ((IStructuredSelection) getViewer()
					.getSelection()).getFirstElement();
			if (marker != null) {
				contextId = IDE.getMarkerHelpRegistry().getHelp(
						marker.getMarker());
			}
			if (contextId == null) {
				contextId = getStaticContextId();
			}
			return HelpSystem.getContext(contextId);
		}
		public String getSearchExpression(Object target) {
			return null;
		}
	}
	private ContextProvider contextProvider = new ContextProvider();
	protected ActionCopyMarker copyAction;
	protected ActionPasteMarker pasteAction;
	protected SelectionProviderAction revealAction;
	protected SelectionProviderAction openAction;
	protected SelectionProviderAction deleteAction;
	protected SelectionProviderAction selectAllAction;
	protected SelectionProviderAction propertiesAction;
	private ISelectionListener focusListener = new ISelectionListener() {
		public void selectionChanged(IWorkbenchPart part, ISelection selection) {
			MarkerView.this.focusSelectionChanged(part, selection);
		}
	};