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Re: Thread dump from JWS?
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Re: Thread dump from JWS?

On Wednesday, October 15, 2003, at 11:49 AM, Nick Howes <email@hidden> wrote:

My app seems to deadlock sometimes when launched via Java Web Start, so
I want to get a thread dump (the deadlock doesn't occur when run from a
terminal command line). I've tried sending the process SIGQUIT, but it
seems to be ignored. Anyone know of a way to do this?

I can reliably get dumps from JWS from a SIGQUIT. When I do it, the dump
gets placed on the System console (viewable with Console.app, in the folder
/Applications/Utilities).

FYI, a common deadlock I've seen when running under 1.3.1, launched from
JWS 1.2 (installed with 1.4.1) with the JVM restricted to 1.3* occurs on
the JWS console itself. If one of your app threads is writing to the
console at the same time as the Swing thread does certain updates to it,
the thing will deadlock. Don't run with a JWS console if you're using the
1.3.1 JVM on a 1.4.1 system.
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