Bug 86326 Java editor should override getOrientation()
M5 Java editors are unreadable in RTL so we should make them always LTR.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
}
		/**
		 * Set the event filter to the given filter.
		 * 
		 * @param filter The new filter.
		 */
		public void setFilter(IPropertyChangeEventFilter filter) {
			fFilter= filter;
		}
		
		/**
		 * Returns the event filter.
		 * 
		 * @return The event filter.
		 */
		public IPropertyChangeEventFilter getFilter() {
			return fFilter;
		}
	}
	
	/**
	 * Cancels the occurrences finder job upon document changes.
	 * 
	 * @since 3.0
	 */
	class OccurrencesFinderJobCanceler implements IDocumentListener, ITextInputListener {
		public void install() {
			ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer == null)
				return;