Bug 88397 [5.0] OpenAction does not select whole ITypeParameter
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
fProjectionSupport= null;
		}
		
		
		fMarkOccurrenceAnnotations= false;
		uninstallOccurrencesFinder();
		
		uninstallOverrideIndicator();
		
		uninstallSemanticHighlighting();
		
		if (fActivationListener != null) {
			PlatformUI.getWorkbench().removeWindowListener(fActivationListener);
			fActivationListener= null;
		}
		
		if (fEncodingSupport != null) {
			fEncodingSupport.dispose();
			fEncodingSupport= null;
		}
		
		if (fBracketMatcher != null) {
			fBracketMatcher.dispose();
			fBracketMatcher= null;
		}
		
		if (fSelectionHistory != null) {
			fSelectionHistory.dispose();
			fSelectionHistory= null;
		}