Run attached application on Solaris x86 (I used 2.7).
on current Merlin build:
java version "1.4.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0beta-b37)
Java HotSpot(TM) Client VM (build 1.4beta-B37, mixed mode)

Start quickly clicking and selecting items in the JCombobox.
Application will crash.
Here is an output from dbx:
t@0 (l@3) signal SEGV (no mapping at the fault address) in _free_unlocked at 0xdfb5f990
0xdfb5f990: _free_unlocked+0x0020: movl -8(%esi),%eax
Current function is rootWindow
  992 XFree(children);
(dbx 3) w
   [1] _free_unlocked(), at 0xdfb5f990
   [2] free(), at 0xdfb5f960
   [3] XFree(), at 0xd6485674
 =>[4] rootWindow(w = 75497595U), line 992 in "awt_MToolkit.c"
   [5] focusEventForProxy(xev = UNION, env = 0x81ca9e0, trueFocusWindow = 0xd67bd570, focusProxyWindow = 0xd67bd56c), line 1005 in "awt_MToolkit.c"
   [6] processOneEvent(iMask = 1), line 1310 in "awt_MToolkit.c"
   [7] awt_MToolkit_loop(env = 0x81ca9e0), line 853 in "awt_MToolkit.c"
   [8] Java_sun_awt_motif_MToolkit_run(env = 0x81ca9e0, this = 0xd62faa9c), line 2041 in "awt_MToolkit.c"
(dbx 4) l
  992 XFree(children);
  993 return root;
  994 }
  995
  996 static void
  997 focusEventForProxy(XEvent xev,
  998 JNIEnv *env,
  999 Window *trueFocusWindow,
  1000 Window *focusProxyWindow) {
  1001

The bug does not seem to be reproducible on sparc.
It's reproducible on Merlibird build 02 on x86 as well.

dmitri.trembovetski@eng 2000-10-20