Bug 299209 [CommonNavigator] Clean up error reporting for pipelined extensions
A catch block was missing for one of them, and the error report does not provide the extension Id that had the problem.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/NavigatorPipelineService.java
NavigatorPlugin.logError(0, msg, e);
		}
	}
	/**
	 * Intercept calls to viewer <code>refresh()</code> methods.
	 * 
	 * <p>
	 * Clients may modify the given update to add or remove the elements to be
	 * refreshed. Clients may return the same instance that was passed in for
	 * the next downstream extension.
	 * </p>
	 * 
	 * <p>
	 * <b>Clients should not call any of the add, remove, refresh, or update
	 * methods on the viewer from this method or any code invoked by the
	 * implementation of this method.</b>
	 * </p>
	 * 
	 * @param aRefreshSynchronization
	 *            The (current) refresh update to execute against the viewer.
	 * @return The (potentially reshaped) refresh to execute against the viewer.
	 */
	public boolean interceptRefresh(
			PipelinedViewerUpdate aRefreshSynchronization) {
 
		boolean pipelined = false;
		Object refreshable = null;
		Set overrideableExtensions = new LinkedHashSet();
		for (Iterator iter = aRefreshSynchronization.getRefreshTargets().iterator(); iter.hasNext();) {
			refreshable = iter.next();