Bug 42199 Select Next/Previous Word is broken when navigating over sequence of upper-case letters
I20030827: When positioning the caret to the right of sequences with pattern a* A+ a*, where A+ consists of more than two upper-case letters, the caret is moved to the beginning instead in front of the first A when using Ctrl+Arrow_Left.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
if (selectionProvider instanceof IPostSelectionProvider)  {
				IPostSelectionProvider provider= (IPostSelectionProvider) selectionProvider;
				provider.addPostSelectionChangedListener(this);
			} else  {
				selectionProvider.addSelectionChangedListener(this);
			}
		}
		/**
		 * Removes this selection changed listener from the given selection provider.
		 * 
		 * @param selectionProvider
		 */
		public void uninstall(ISelectionProvider selectionProvider) {
			if (selectionProvider == null)
				return;
			
			if (selectionProvider instanceof IPostSelectionProvider)  {
				IPostSelectionProvider provider= (IPostSelectionProvider) selectionProvider;
				provider.removePostSelectionChangedListener(this);
			} else  {
				selectionProvider.removeSelectionChangedListener(this);
			}			
		}
	}
	/**
	 * Updates the Java outline page selection and this editor's range indicator.
	 * 
	 * @since 3.0
	 */
	private class EditorSelectionChangedListener extends AbstractSelectionChangedListener {