<Swing Dev> [11] RFR JDK-8197825: [Test] Intermiitent timeout with javax/swing JColorChooser Test

[Sergey Bylokhov]

Hi, Prasanta.
I think that the suspicious place in the stack is below, it tries to 
execute hooks during system shutdown and hangs.

The hook which hangs is "ToolkitShutdown #18 daemon" from the WToolkit 
class. I guess  that the code which hangs is a loop in the:
Java_sun_awt_windows_WToolkit_shutdown:
     while (!tk.IsDisposed()) {
         Sleep(100);
     }

So it does not look like a test bug.

On 13/02/2018 22:38, Prasanta Sadhukhan wrote:
> "main" #1 prio=5 os_prio=0 tid=0x000001b83d8ad000 nid=0x3e84 in 
> Object.wait()  [0x0000003e642fe000]
>     java.lang.Thread.State: WAITING (on object monitor)
>      at java.lang.Object.wait(java.base at 10-ea/Native Method)
>      - waiting on <0x00000006d2880200> (a java.lang.Thread)
>      at java.lang.Thread.join(java.base at 10-ea/Thread.java:1353)
>      - waiting to re-lock in wait() <0x00000006d2880200> (a 
> java.lang.Thread)
>      at java.lang.Thread.join(java.base at 10-ea/Thread.java:1427)
>      at 
> java.lang.ApplicationShutdownHooks.runHooks(java.base at 10-ea/ApplicationShutdownHooks.java:107) 
> 
>      at 
> java.lang.ApplicationShutdownHooks$1.run(java.base at 10-ea/ApplicationShutdownHooks.java:46) 
> 
>      at java.lang.Shutdown.runHooks(java.base at 10-ea/Shutdown.java:123)
>      at java.lang.Shutdown.sequence(java.base at 10-ea/Shutdown.java:167)
>      at java.lang.Shutdown.exit(java.base at 10-ea/Shutdown.java:212)


-- 
Best regards, Sergey.