<AWT Dev> [9] Review request for 8056151: Switching to GTK L&F on-the-fly leads to X Window System error RenderBadPicture

[Alexander Scherbatiy]

   The fix looks good to me.

   Thanks,
   Alexandr.

On 3/2/2015 6:47 PM, Alexander Zvegintsev wrote:
> Hello,
>
> please review the fix
> http://cr.openjdk.java.net/~azvegint/jdk/9/8056151/00/
> for the issue
> https://bugs.openjdk.java.net/browse/JDK-8056151
>
> There are several prerequisites for this crash:
> enabled XRender pipeline, visible window with non-opaque background 
> with L&F other than GTK.
>
> Switching to GTK L&F leads to load_gtk() call. We crashing on 
> gtk_init_check() call [0]. It invokes
> some XLib functions internally. Hence, wrap it with awtLock is enough 
> to fix the crash.
>
> This fix also removes some unnecessary unboxing.
>
> [0] 
> http://hg.openjdk.java.net/jdk9/client/jdk/file/3850097b0fe9/src/java.desktop/unix/native/libawt_xawt/awt/gtk2_interface.c#l925
>