Bug 31818 [navigation] Open Type Hierarchy loses selection
build I20030211 - open a CU (e.g. BookmarkNavigator.java) - position the cursor between methods - F4 - it opens the type hierarchy on the class, but also changes the text editor's selection to select the class name It should not affect the text editor selection.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
if (event.keyCode == SWT.F5) {
						ITypeHierarchy hierarchy= fHierarchyLifeCycle.getHierarchy();
						if (hierarchy != null) {
							fHierarchyLifeCycle.typeHierarchyChanged(hierarchy);
							doTypeHierarchyChangedOnViewers(null);
						}
						updateHierarchyViewer(false);
						return;
					} else if (event.character == SWT.DEL) {
						if (fCCPActionGroup.getDeleteAction().isEnabled())
							fCCPActionGroup.getDeleteAction().run();
						return;	
					}
 				}
			}
		};		
	}
	
	private void initializeTypesViewer(final TypeHierarchyViewer typesViewer, KeyListener keyListener, String cotextHelpId) {
		typesViewer.getControl().setVisible(false);
		typesViewer.getControl().addKeyListener(keyListener);
		typesViewer.initContextMenu(new IMenuListener() {
			public void menuAboutToShow(IMenuManager menu) {
				fillTypesViewerContextMenu(typesViewer, menu);
			}
		}, cotextHelpId,	getSite());
		typesViewer.addPostSelectionChangedListener(fSelectionChangedListener);
		typesViewer.setQualifiedTypeName(isShowQualifiedTypeNames());
		typesViewer.setWorkingSetFilter(fWorkingSetActionGroup.getWorkingSetFilter());
	}