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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Tomcat dies suddenly
Date Fri, 12 Feb 2010 15:49:55 GMT
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Jeffrey,

On 2/12/2010 10:31 AM, Jeffrey Janner wrote:
> Also, the OP mentioned that it doesn't seem to occur if only the
> production app is being hit.  It takes someone using one of the other
> copies first to generate the problem. So the questions occur:
> 
> 1) Are you absolutely positive that there is no code that could be
> calling exit()?

One way to check this would be to launch the JVM using a script that
captures the exit code of the process:

$!/bin/sh

# Grab all these variable definitions from bin/catalina.sh

    "$_RUNJAVA" "$LOGGING_CONFIG" $JAVA_OPTS $CATALINA_OPTS \
      -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
      -Dcatalina.base="$CATALINA_BASE" \
      -Dcatalina.home="$CATALINA_HOME" \
      -Djava.io.tmpdir="$CATALINA_TMPDIR" \
      org.apache.catalina.startup.Bootstrap "$@" start \
      >> "$CATALINA_BASE"/logs/catalina.out 2>&1

result=$?

echo "JVM existed with status code=${result}"

If it's 0, then the changes that this is due to a System.exit(0) call
are very high.

You could also try running under a SecurityManager, and prohibit
System.exit() calls.

- -chris
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