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

Anthony Petrov anthony.petrov at oracle.com
Tue May 21 11:18:46 UTC 2013

Hi Petr,

The fix looks good to me. We still need a review from someone who 
maintains the Launcher code. Kumar?

Also, you could use the @autoreleasepool directive to simplify it a bit, 
although I'm fine with the explicit syntax, too.

One comment regarding your remark:
> c. We would have lost all the hg history for this file.

We wouldn't. Mercurial handles renaming of files very well. See `hg help 
rename` for more details. (I'm not suggesting to rename this file though.)

best regards,

On 05/21/2013 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.

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