[OpenJDK 2D-Dev] JNI crashes in FontManager code

[Igor Nekrestyanov]

Fix for this problem was integrated.

Note that it is different from suggested one (see 
http://hg.openjdk.java.net/jdk7/2d/jdk/rev/11d333de082f) as approach 
taken follows what we do for
other rasterizer more closely.

The idea is to ensure cached state is up to date. Then we do not need 
neither global JNIEnv nor global reference to font2d object.

The caveat here is that i was not able to reproduce problem locally and 
therefore fix was not tested properly.
Please let me know if it does not resolve the problem in your environment.

-igor

Martin Buchholz wrote:
> Ping.
>
> A crash found in testing by users seems pretty high priority.
>
> Martin
>
> On Tue, Oct 21, 2008 at 02:13, Igor Nekrestyanov
> <Igor.Nekrestyanov at sun.com> wrote:
>   
>> Thanks!
>>
>> I've filed bug 6761791 and plan to evaluate suggested fix in more
>> details/fix the bug soon.
>>
>> -igor
>>
>> Martin Buchholz wrote:
>>     
>>> Igor, I did some more digging, and I have a stack trace for you
>>>
>>> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native
>>> code)
>>> V  [libjvm.so+0x298366]
>>> C  [libfontmanager.so+0x59e4]
>>> C  [libfreetype.so.6+0x73c9]  FT_Stream_Close+0x19
>>> C  [libfreetype.so.6+0xa065]  FT_Stream_Free+0x25
>>> C  [libfreetype.so.6+0xa6e2]
>>> C  [libfreetype.so.6+0xaf78]  FT_Done_Face+0x78
>>> C  [libfontmanager.so+0x6964]
>>> Java_sun_font_FreetypeFontScaler_disposeNativeScaler+0x34
>>>
>>> (sorry for the lack of debug info)
>>>
>>> (These are all running on Linux)
>>>
>>> Hope this helps.
>>>
>>> Martin
>>>
>>>       
>>