> On Mar 17, 2023, at 7:49 AM, Alan Snyder <javali...@cbfiddle.com> wrote:
> 
> block() means invoke the block
> 
>> On Mar 17, 2023, at 5:34 AM, Michael Hall via Cocoa-dev 
>> <cocoa-dev@lists.apple.com> wrote:
>> 
>> 
>> 
>>> On Mar 17, 2023, at 6:51 AM, Michael Hall <mik3h...@gmail.com> wrote:
>>> 
>>>> 
>>> 
>>> Sorry, I looked at your link and am still not sure this is correct if you 
>>> are already on the main thread.
>>> 
>> 

Alan,

Sorry for not believing you the first time.

Semantics. Not what I usually think of with ‘block’. 

Sort of a difficult thing to pin down.  What I first saw after the hang running 
a Panama early access for the jdk…

"AWT-EventQueue-0" #14 prio=6 os_prio=31 cpu=16.71ms elapsed=5.56s 
tid=0x00007f7fdc833400 nid=26883 runnable  [0x0000700003baf000]
   java.lang.Thread.State: RUNNABLE
        at 
sun.java2d.opengl.CGLGraphicsConfig.getCGLConfigInfo(java.desktop@19-panama/Native
 Method)
        at 
sun.java2d.opengl.CGLGraphicsConfig.getConfig(java.desktop@19-panama/CGLGraphicsConfig.java:137)
        at 
sun.awt.CGraphicsDevice.<init>(java.desktop@19-panama/CGraphicsDevice.java:99)
        at 
sun.awt.CGraphicsEnvironment.initDevices(java.desktop@19-panama/CGraphicsEnvironment.java:169)
        - locked <0x000000070fc0f658> (a sun.awt.CGraphicsEnvironment)

I went to a current jdk 19 to maven build some of Martin’s project last night 
which still hangs but shows…

"AWT-EventQueue-0" #21 [27907] prio=6 os_prio=31 cpu=13.40ms elapsed=3.81s 
tid=0x00007fdb3785de00 nid=27907 runnable  [0x00007000017f5000]
   java.lang.Thread.State: RUNNABLE
        at 
sun.java2d.metal.MTLGraphicsConfig.tryLoadMetalLibrary(java.desktop@19.0.2/Native
 Method)
        at 
sun.java2d.metal.MTLGraphicsConfig.getConfig(java.desktop@19.0.2/MTLGraphicsConfig.java:140)
        at 
sun.awt.CGraphicsDevice.<init>(java.desktop@19.0.2/CGraphicsDevice.java:78)
        at 
sun.awt.CGraphicsEnvironment.initDevices(java.desktop@19.0.2/CGraphicsEnvironment.java:169)
        - locked <0x000000070fcf11d8> (a sun.awt.CGraphicsEnvironment)

Different path same result.
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