[JBoss-user] Can MBeans have a Swing interface

[Randahl Fink Isaksen]

I was thinking of creating a service MBean for monitoring certain parts of the server side of my application. Is it valid behavior of such an MBean to launch a Swing interface, say, in its startService() method (supposing it extends ServiceMBeanSupport)?   To find out, I created a simple MBean (see below) but unfortunately it makes JBoss hang when I try to shut down JBoss. I have added and removed the JFrame related code several times, and the result is always the same: With the JFrame code, JBoss hangs when shutting down.   Showing the JFrame is no problem – it pops up just like I wanted it.   Randahl           public class Server extends ServiceMBeanSupport implements ServerMBean {             JFrame serverFrame;               public void startService() {                         serverFrame = new JFrame("Server");                         serverFrame.show();                         System.out.println("Server is started");             }                         public void stopService() {                         serverFrame.hide();                         System.out.println("Server is stopped");             } }   <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE server>   <server>             <mbean code="dk.my.package.tree.Server" name="user:service=Test">                         <depends>jboss:service=Naming</depends>             </mbean> </server>