Bug 213448 [CommonNavigator] Linking open editors with content in Project Explorer not working on restart
On using the project explorer and clicking on the "link with navigator" icon - it links to the editor. However, when closing eclipse and reopening, the link does not automatically activate again, although the editor is open on a specific file. Clicking on the icon again, reactives the link.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/NavigatorPlugin.java
public void handleException(Throwable exception) {
			result = EvaluationResult.FALSE;
		}
		public void run() throws Exception {
			result = expression.evaluate(scope);
		}
	}
	/**
	 * Safely evaluation an expression, logging appropriately on error
	 * 
	 * @param expression
	 * @param scope
	 * @return the EvaluationResult
	 */
	public static EvaluationResult safeEvaluate(Expression expression, IEvaluationContext scope) {
		Evaluator evaluator = new Evaluator();
		evaluator.expression = expression;
		evaluator.scope = scope;
		SafeRunner.run(evaluator);
		return evaluator.result;
	}
	
	/**
	 * Create a status associated with this plugin.
	 *  
	 * @param severity
	 * @param aCode
	 * @param aMessage
	 * @param exception
	 * @return A status configured with this plugin's id and the given parameters.