Bug 43488 [typing] BadPositionCategoryException in LinkedPositionManager
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
text.setSelectionRange(selection.x, offset - selection.x);		
			}
		}
	}
	/**
	 * Text navigation action to navigate to the previous sub-word.
	 * 
	 * @since 3.0
	 */
	protected abstract class PreviousSubWordAction extends TextNavigationAction {
		
		private final RuleBasedCollator fCollator= (RuleBasedCollator)Collator.getInstance();
		/**
		 * Creates a new previous sub-word action.
		 * 
		 * @param code Action code for the default operation. Must be an action code from @see org.eclipse.swt.custom.ST.
		 */
		protected PreviousSubWordAction(final int code) {
			super(getSourceViewer().getTextWidget(), code);
			
			
			fCollator.setStrength(Collator.TERTIARY);
		}
		/*
		 * @see org.eclipse.jface.action.IAction#run()
		 */
		public void run() {
			try {
				final ISourceViewer viewer= getSourceViewer();
				final IDocument document= viewer.getDocument();