Jetty/java processes not dieing?

I'm seeing an intermittant problem that I'm wondering if anyone else has
seen and has a solution to.  I'm using Jetty 4.2.3, running on Red Hat 7.2
and 7.3 (Intel).  No JSP, servlet only.  Jetty min/max threads of 100/750.
Sun JDK 1.4.1.  The problem is that the Java processes don't go away.  I
have a small wrapper Java application that creates the Jetty instance, sets
up the web app (we don't use a config file, it's done via code), etc.

The startup looks like (Launcher is the wrapper app, and I've omitted
classpath for brevity):

nohup sh -c "exec java -server -Xms256m -Xmx512m -classpath ... Launcher >>
/www/logs/jetty.log 2>&1" >/dev/null &
echo $! > /www/logs/jetty.pid

The shutdown looks like (where $PID is the value from jetty.pid above):

kill $PID 2>/dev/null
sleep 2
kill -9 $PID 2>/dev/null

Much of the time it seems to work fine, but we've had several times where we
do this, and the java process (and all it's threads) are still there.  Doing
another manual kill -9 kills it.

Any ideas?

__
Chris Bailey       mailto:chris@xxxxxxxxxxxxxxxxx
Code Intensity     http://www.codeintensity.com


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