Product Version = NetBeans IDE 7.1 (Build 201112071828)
Operating System = Windows 7 version 6.1 running on amd64
Java; VM; Vendor = 1.7.0_02
Runtime = Java HotSpot(TM) 64-Bit Server VM 22.0-b10

I hava a java application that uses threads and i would like to monitor it with visualvm. I could connect it to visualvm and i see every tab correctly but not the threads tab.

On it, i can't see any threads working but i can see the number of them running.

I have also the JConsole plugin "Top threads" and there i also cannot see any thread.

The Java version is 1.7.2  and the application uses daemon threads.

I've debugged the app and when it starts everything goes fine and i can see thread timetable. When the first thread starts the timetable hangs and i can't see anything else.

This is the code to create and start the threads

for (i = 0; i < 10; i++)
        {
            attenderThreads.add(new Attender(i));
        }
       
        for (i = 0; i < attenderThreads.size(); i++)
        {
            ((Attender) attenderThreads.elementAt(i)).start();
        }

And this is the class Attender than extends Thread

    public Attender(int _ithread)
    {
        setDaemon(true);

        ithread = _ithread;
        threadSuspended = true;

        locked = false;

        super.setName ("Attender "+ _ithread);
    }

Finally, the application works fine but i need to see the threads because sometimes the app hangs and i don't know where it's happening.

The app is Java Console and i can make a Thread dump and i see all the threads.