Activator.java 文件源码

public void stop(BundleContext context) throws Exception {
plugin = null;
if (viewpoints != null) {
    for (final Viewpoint viewpoint: viewpoints) {
    ViewpointRegistry.getInstance().disposeFromPlugin(viewpoint);
    }
    viewpoints.clear();
    viewpoints = null; 
}
super.stop(context);
   }