<AWT Dev> [9] Review request for 8048289 Gtk: call to UIManager.getSystemLookAndFeelClassName() leads to crash

Sergey Bylokhov Sergey.Bylokhov at oracle.com
Thu Jul 17 12:15:36 UTC 2014

Hi, Alexander.
As far as I remember, we have a code, which closes this lib for the 
usual usage of gtk look and feel. Looks like we never call it, but if we 
call it it will cause the same crash? Can you investigate that? Thanks.

On 7/16/14 8:56 PM, Alexander Zvegintsev wrote:
> Hello AWT team,
> please review the fix
> http://cr.openjdk.java.net/~azvegint/jdk/9/8048289/00/
> for the issue
> https://bugs.openjdk.java.net/browse/JDK-8048289
> UIManager.getSystemLookAndFeelClassName() calls 
> UNIXToolkit.isNativeGTKAvailable()
> which loads gtk library, checks version, and closes library. Thread 
> specific data key is created upon gtk dlopen,
> but this key is not deleted at dlclose. This produces a crash at 
> thread termination.
> So this fix is a workaround for the glib issue [1], it simply doesn't 
> close library.
> Simple case to reproduce this issue written on C is attached to [1].
> [1] https://bugzilla.gnome.org/show_bug.cgi?id=733065

Best regards, Sergey.

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