Bug 40074 [navigation] Selection reset to previous item when arrowing in outline
build I20030710 - open a Java editor on a class with several methods - in the outline, select the first method - use the arrow key to go down one item - as soon as the delay passes and the new text range is selected, use the arrow key to go down another item - after the delay, the selection is reset back to the previous item
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
String content= reference.getSource();
						if (content != null) {
							offset= range.getOffset() + content.indexOf(name);
							length= name.length();
						}
					}
				} else if (reference instanceof IPackageDeclaration) {
					String name= ((IPackageDeclaration) reference).getElementName();
					if (name != null && name.length() > 0) {
						String content= reference.getSource();
						if (content != null) {
							offset= range.getOffset() + content.indexOf(name);
							length= name.length();
						}
					}
				}
				
				if (offset > -1 && length > 0) {
					
					try  {
						textWidget.setRedraw(false);
						sourceViewer.revealRange(offset, length);
						sourceViewer.setSelectedRange(offset, length);
					} finally {
						textWidget.setRedraw(true);
					}
					
					markInNavigationHistory();
				}