Bug 29163 SafeRunnable needs to be accessible in JFace
We need to be able to access the SafeRunnable in JFace in order that some error protection can be added to preferences and properties dialogs.
bundles/org.eclipse.ui.workbench/extensions/org/eclipse/jface/action/SubStatusLineManager.java
public void setMessage(Image image, String message) {
	this.image = image;
	this.message = message;
	if (isVisible())
		parentMgr.setMessage(image, message);
}
/* (non-Javadoc)
 * Method declared on SubContributionManager.
 */
public void setVisible(boolean visible) {
	super.setVisible(visible);
	if (visible) {
		parentMgr.setErrorMessage(image, errorMessage);
		parentMgr.setMessage(image, message);
	} else {
		parentMgr.setMessage(null, (String)null);
		parentMgr.setErrorMessage(null, null);
	}
}
/* (non-Javadoc)
 * Method declared on IStatusLineManager.
 */
public void update(boolean force) {
	
	
	
	parentMgr.update(force);
}
}