扩展SWT的widgets遇到org.eclipse.swt.SWTException: Subclassing not allowed

import com.jxxms.meeting.entiy.User;
import com.jxxms.resource.SWTResourceManager;

public class VideoLabel extends Label {

 

    private User user;

    public VideoLabel(Composite parent, int style,User user) {
       super(parent, style);
       this.user= user;
       setToolTipText(user.getUserName());
        setImage(SWTResourceManager.getImage(user.getPictureuri()));
    }
}

 

 

异常情况如下

     org.eclipse.swt.SWTException: Subclassing not allowed

 

 

解决办法:

重写

 protected void checkSubclass() {

 }

方法,这样就OK