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Re: Alarming SwingUtilities.invokeLater Problem in OS 9

On 15-Aug-05, at 3:19 PM, Doug Zwick wrote:

I've done some more experimentation, and it looks that all invokeLater
requests get serviced by AWT-Dispatch-Proxy while a nested event loop
is running a modal dialog. This suggests it is deliberate, and I have
the theory that this is so that logically distinct Runnables do not
inherit any environmental features from the code originally executing
on AWT-EventQueue-0, such as locked monitors. This would shift the
observed behaviour from being a "bug" to being a "feature", and thus
no longer alarming.

Interestingly, if it is a "feature", it seems to be unique to OS 9 (or
perhaps 1.1.x). The 1.3.1, 1.4.2 and 1.5.0 JVMs from Tiger all
process invokeLater requests on AWT-EventQueue-0.

I also found that on OS 9, whenever a nested event loop is
generated, a new AWT-Dispatch-Proxy thread is created, and
all Swing events are sent there. The SwingUtilities method
isEventDispatchThread reports TRUE for this thread. It is
just different enough (from 1.3+) that I tripped over it.
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References: 
 >Alarming SwingUtilities.invokeLater Problem in OS 9 (From: Doug Zwick <email@hidden>)
 >Re: Alarming SwingUtilities.invokeLater Problem in OS 9 (From: Michael Hall <email@hidden>)
 >Re: Alarming SwingUtilities.invokeLater Problem in OS 9 (From: Doug Zwick <email@hidden>)
 >Re: Alarming SwingUtilities.invokeLater Problem in OS 9 (From: Michael Hall <email@hidden>)
 >Re: Alarming SwingUtilities.invokeLater Problem in OS 9 (From: Doug Zwick <email@hidden>)



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