Occurs only in Windows 98 and Windows 2000 with JDK 1.3 (with or without hotspot).


Try this to reproduce:

- Create new class from template: Classes | Main
- Add this code into main():
     System.out.println("Ahoj");
     int i;
     i=10;
     System.out.println(i);
     int x=20;
     System.out.println(x);
- Compile it, set breakpoint on first line of main method. Press F5.
- Trace over utill you will be on line with "System.out.println(i);"
- Add variable i to watches.
- Trace over to last line in main method. Add variable x to watches.

This is not only one way to freeze IDE and it is not necessary to add watches. This is only my procedure  to freeze IDE during debugging that always works.

Thread dump is in attachment.
Thread dump for debugging with JPDA added to attachment.

[Dan]
Occurs when focus is changed (from editor to debugger window).