JPopupBox.show() debug crash

Question

Kubuntu 9.10
Java 1.6.0_17
NetBeans 6.8
The code below is a method in a MouseListener, attached to a JList. This idea is to popup a menu on right-click.
public void mouseClicked ( MouseEvent e )
        if( e.getButton() > 1 )
            this._popup_menu.show( e.getComponent(), e.getX(), e.getY() );                    
    }If a breakpoint is set on the show() method, and then the debugger is stepped (F8), the entire machine locks up. The mouse still moves but nothing (including <ctrl><alt><delete> works and the machine must be rebooted.
Since the show() method can be stepped into(F7 in NetBeans), I've traced through the Java run-time to the following code, at which point I can no longer step into.
Class = BasicPopupMenuUI
void grabWindow(MenuElement[] newPath){
if(grabbedWindow != null) {
                if(tk instanceof sun.awt.SunToolkit) {
                    ((sun.awt.SunToolkit)tk).grab(grabbedWindow);  //<-- Can't step into this call.  Error occurs here.
                } else {
                    grabbedWindow.addComponentListener(this);
                    grabbedWindow.addWindowListener(this);
...I'm not sure if the issue is with Java or NetBeans. Any help would be appreciated.
Best Regards,
Andrew

Answer 1

side-stepping the need for debugging at its root: use existing api for per-component popups
list.setComponentPopupMenu(myPopup)CU
Jeanette