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

Petr Pchelko petr.pchelko at oracle.com
Tue May 21 04:07:47 PDT 2013

Added macosx-port-dev

On May 21, 2013, at 10:57 AM, David Holmes wrote:

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

More information about the awt-dev mailing list