Re: JDK 9 b159 - sun.lwawt.macosx.CWrapper$NSWindow.isZoomed never returns

[dmitry markov]

Hi Reto,

Thank you for the testcase. I was able to reproduce the problem using it.
I have opened JDK-8176490 
<https://bugs.openjdk.java.net/browse/JDK-8176490> for this issue. Will 
look into this.

Thanks,
Dmitry
On 09/03/2017 16:41, Reto Merz wrote:
Hi Dmitry,

I was able to create a demo to reproduce it.
It seems that the issue is triggered by Windows#setEnabled(boolean).

Steps to reproduce it with attached WindowTest.java,
maybe you need 2-3 attempts:

(0. start the demo program)
1. click on the button in the first window ; a second window opens
2. click on the button in the second dialog ; a third windows open
3. move the third window via mouse and click on the label
4. wait 9 seconds ; a fourth windows is opened (the fourth windows should be 
opened behind the third)
5. try to close the fourth
-> EDT is blocked

Attached threads_report.txt is a full thread dump after step 5.

FYI:
I just re-checked the logs, the original integration test was never run on 
macOS with a older JDK 9.
The original integration passes with:
- JDK 8 u152 EA on Windows and macOS
- JDK 9 b157 EA on Windows ; macOS not tested
- JDK 9 b159 EA on Windows ; hangs on macOS as described

Thanks
Reto


-----Ursprüngliche Nachricht-----
Von: dmitry markov [mailto:dmitry.mar...@oracle.com]
Gesendet: Donnerstag, 9. März 2017 08:52
An: Reto Merz
Cc: awt-dev@openjdk.java.net
Betreff: Re: <AWT Dev> JDK 9 b159 -
sun.lwawt.macosx.CWrapper$NSWindow.isZoomed never returns

Hi Reto,

I have no seen such hang before. Most likely this is a new issue.
Could you provide us with a test case, (i.e. reproducer), please? Once
we have a reproducer, I will open a bug for this.

Thanks,
Dmitry
On 07/03/2017 19:52, Reto Merz wrote:
Hi,

We have a integration test which hangs with Java 9 b159 under macOS
10.12.3.
It does not hang with b157 and also works with Windows OS & b159.
We can reproduce it always with our integration test.

I want to ask if this is already a known regression?
Otherwise I can try to provide a simple test case to reproduce it but
this would take some time.

The relevant thread stacks are:

"AWT-EventQueue-0" #13 prio=6 os_prio=31 tid=0x00007fa86ea7e000
nid=0xd203 runnable [0x0000700010632000]
    java.lang.Thread.State: RUNNABLE
     at
sun.lwawt.macosx.CWrapper$NSWindow.isZoomed(java.desktop@9-
ea/Native
Method)
     at
sun.lwawt.macosx.CPlatformWindow.isMaximized(java.desktop@9-
ea/CPlatformWindow.java:509)
     at
sun.lwawt.macosx.CPlatformWindow.setVisible(java.desktop@9-
ea/CPlatformWindow.java:558)
     at
sun.lwawt.LWWindowPeer.setVisibleImpl(java.desktop@9-
ea/LWWindowPeer.java:253)
     at
sun.lwawt.LWComponentPeer.setVisible(java.desktop@9-
ea/LWComponentPeer.java:763)
     at java.awt.Component.hide(java.desktop@9-ea/Component.java:1705)
     - locked <0x00000007a48a2c20> (a java.awt.Component$AWTTreeLock)
     at java.awt.Window.hide(java.desktop@9-ea/Window.java:1118)
     at java.awt.Dialog.hide(java.desktop@9-ea/Dialog.java:1152)
     at java.awt.Window.hide(java.desktop@9-ea/Window.java:1110)
     - locked <0x00000007a802e218> (a java.util.Vector)
     at java.awt.Dialog.hide(java.desktop@9-ea/Dialog.java:1152)
     at java.awt.Component.show(java.desktop@9-
ea/Component.java:1670)
     at
java.awt.Component.setVisible(java.desktop@9-
ea/Component.java:1615)
     at java.awt.Window.setVisible(java.desktop@9-ea/Window.java:1017)
     at java.awt.Dialog.setVisible(java.desktop@9-ea/Dialog.java:1005)

"AppKit Thread" #11 daemon prio=5 os_prio=31 tid=0x00007fa87076b000
nid=0x307 waiting for monitor entry [0x00007fff5e87e000]
    java.lang.Thread.State: BLOCKED (on object monitor)
     at
java.awt.Window.getOwnedWindows_NoClientCode(java.desktop@9-
ea/Window.java:1478)
     - waiting to lock <0x00000007a802e218> (a java.util.Vector)
     at
java.awt.Window$1.getOwnedWindows(java.desktop@9-
ea/Window.java:4127)
     at

sun.lwawt.macosx.CPlatformWindow.orderAboveSiblingsImpl(java.desktop
@9-ea/CPlatformWindow.java:1153)
     at

sun.lwawt.macosx.CPlatformWindow.orderAboveSiblings(java.desktop@9-
ea/CPlatformWindow.java:1118)
     at

sun.lwawt.macosx.CPlatformWindow.windowDidBecomeMain(java.desktop
@9-ea/CPlatformWindow.java:1182)
Thanks
Reto