Yuji,
I'm on vacation till Jan 10, answer you next week.
Sorry!
Dmitry.
On 2016-01-05 18:01, KUBOTA Yuji wrote:
> Hi Dmitry,
>
> Thank you for your time. If you have a comment, please let me know.
>
> Thanks,
> Yuji
>
> 2015-12-15 18:11 GMT+09:00 Dmitry Samersoff <dmitry.samers...@oracle.com>:
>> Yuji,
>>
>> I'll take a look.
>>
>> -Dmitry
>>
>> On 2015-12-15 11:23, KUBOTA Yuji wrote:
>>> Hi all,
>>>
>>> When I ran HSDB by jhsdb on CLI i.e. without x11 display, HSDB could
>>> not terminate after throwing HeadlessException.
>>>
>>> HSDB starts WorkerThread before making the JFrame. If we run HSDB on
>>> CLI, HSDB throws HeadlessException when makes the JFrame. Thus, the
>>> WorkerThread has never shutdown, then HSDB can not terminate.
>>>
>>> -----
>>> Exception in thread "main" java.awt.HeadlessException:
>>> No X11 DISPLAY variable was set, but this program performed an
>>> operation which requires it.
>>> at
>>> java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:205)
>>> at java.awt.Window.<init>(Window.java:535)
>>> at java.awt.Frame.<init>(Frame.java:422)
>>> at javax.swing.JFrame.<init>(JFrame.java:224)
>>> at sun.jvm.hotspot.HSDB.run(HSDB.java:140)
>>> at sun.jvm.hotspot.HSDB.main(HSDB.java:53)
>>> at sun.jvm.hotspot.SALauncher.runHSDB(SALauncher.java:167)
>>> at sun.jvm.hotspot.SALauncher.main(SALauncher.java:339)
>>> ## Waiting for the shutdown of WorkerThread forever... ###
>>> -----
>>>
>>> I have created a patch from jdk9/dev/hotspot (changeset:
>>> 9625:de592ea5f7ba) as below. Please review it !
>>>
>>> diff --git a/agent/src/share/classes/sun/jvm/hotspot/HSDB.java
>>> b/agent/src/share/classes/sun/jvm/hotspot/HSDB.java
>>> --- a/agent/src/share/classes/sun/jvm/hotspot/HSDB.java
>>> +++ b/agent/src/share/classes/sun/jvm/hotspot/HSDB.java
>>> @@ -137,15 +137,16 @@
>>> return;
>>> }
>>>
>>> + // Make frame at first, then initialize agent.
>>> + frame = new JFrame("HSDB - HotSpot Debugger");
>>> + frame.setSize(800, 600);
>>> + frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
>>> +
>>> agent = new HotSpotAgent();
>>> workerThread = new WorkerThread();
>>> attachMenuItems = new java.util.ArrayList();
>>> detachMenuItems = new java.util.ArrayList();
>>>
>>> - frame = new JFrame("HSDB - HotSpot Debugger");
>>> - frame.setSize(800, 600);
>>> - frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
>>> -
>>> JMenuBar menuBar = new JMenuBar();
>>>
>>> //
>>>
>>>
>>> Thanks,
>>> Yuji
>>>
>>
>>
>> --
>> Dmitry Samersoff
>> Oracle Java development team, Saint Petersburg, Russia
>> * I would love to change the world, but they won't give me the source code.
--
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.
