<AWT Dev> [8] Review Request for 8009911 : [macosx] SWT app freeze when going full screen using Java 7 on Mac

David Holmes david.holmes at oracle.com
Mon May 20 23:57:02 PDT 2013

Adding core-libs as this is actually a launcher change.


On 21/05/2013 4:36 PM, Petr Pchelko wrote:
> Hello, AWT Team.
> Please review the fix for the issue:
> http://bugs.sun.com/view_bug.do?bug_id=8009911
> The webrev is available at:
> http://cr.openjdk.java.net/~pchelko/8009911/webrev.00/
> The problem:
> When launching java with -XstatrOnFirstThread we were using dispatch_sync to start a Java main on the main thread. This blocked the main dispatch queue, so all the subsequent calls to GCD were never invoked. GCD is used a bit in our code, but it is used inside Cocoa, for example for fullscreen.
> The solution:
> We now launch Java main using a performSelectorOnMaintThread, so we do not block GCD.
> Notes:
> 1. This also fixes the following SWT bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=388886
> 2. Although I have added OBJC syntax into java_md_macosx.c file, I did not rename it to .m, because:
> 	a. It is hard to update an old build system to compile with the new file name.
> 	b. It is already compiled with -x objective-c, so I will compile
> 	c. We would have lost all the hg history for this file.
> With best regards. Petr.

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