@ServiceProvider(service = MyService.class) public class MyServiceImpl implements MyService { } @Lookup public interface MyLookupInterface { } @ProjectServiceProvider(service = MyProjectService.class, projectType = "org.netbeans.modules.java.java.JavaProject") public class MyProjectServiceImpl implements MyProjectService { } @ActionID(id = "com.example.myplugin.MyAction", category = "File") @ActionRegistration(displayName = "My Action", iconBase = "com/example/myplugin/my_icon.png") public class MyAction extends AbstractAction { }