code: public static ImageDescriptor createImageDescriptor(Bundle bundle,
  			IPath path, boolean useMissingImageDescriptor)
  	{
  		URL url = FileLocator.find(bundle, path, null);
  		if (url != null)
  		{
  			return ImageDescriptor.createFromURL(url);
  		}
  		if (useMissingImageDescriptor)
  		{
  			return ImageDescriptor.getMissingImageDescriptor();
  		}
  		return null;
  	}
docs: /*
  Creates an image descriptor for the given path in a bundle. The path can contain variables like $NL$. If no image
  could be found, <code>useMissingImageDescriptor</code> decides if either the 'missing image descriptor' is
  returned or <code>null</code>. Added for 3.1.1.