Hi!

I'm using multiple threads in my application. Basically I have a combo box and upon selecting Inbox, p1 resumes and p2 is suspended and upon selecting Send, p2 starts and p1 stops. Below is the code (I'm sure it's not perfect)

public void modifyText(ModifyEvent e) {
                if (combo.getText().equals("Inbox"))
                {
                    synchronized(p2) 
                    {
                        p2.cont = false;
                    }
                    table.removeAll();
                    synchronized(p1)
                    {
                        p1.cont = true;
                        p1.notify();
                    }
                }


                else if (combo.getText().equals("Sent"))
                {
                    synchronized(p2) 
                    {
                        p1.cont = false;
                    }
                    table.removeAll();
                    synchronized(p1)
                    {
                        p2.cont = true;
                        p2.notify();
                    }
                }
            }
        });

and for P1 and P2 I have this inside their while loops:

synchronized (this) {
            while (cont == false)
                try {
                    wait();
                } catch (Exception e) {
                }
        } 

... As it is it's now working (I'm a beginner to threads). On pressing Sent in the combo box, I get an IllegalStateMonitorException. Could anyone help me solve the problem plz?

Thanks and regards, Krt_Malta