[Wrapper-user] JVM exited unexpectedly while stopping the application

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Trying out the Java Service Wrapper (e.g. 3.3.0 - Community Edition)  
and have been noticing a warning in the logs anytime I shut down the  
application (e.g. "JVM exited unexpectedly while stopping the  
application").

I did notice the comments about bug #945072 for a previous release  
(e.g. http://sourceforge.net/tracker/?func=detail&aid=945976&group_id=39428&atid=425187) 
, but I am not calling System.exit() (e.g. that I'm aware of) and this  
is just a test application (e.g. not doing much at this point, stops  
really quick).  I am using method #3 as an integration method.  Only  
thing I can think of that may be particular about my test application  
is that I am using an interrupt to stop the application (e.g. break  
out of a Selector loop).

Anyways, just wondering if I should worry about this or just ignore it  
and move on.  Thanks, Bob

----

The following log snippet comes from running under OSX.  Same thing  
happens under Windows XP, although the noted warning message happens  
at a latter time under XP (e.g. right before the "Wrapper Stopped"  
STATUS message).

.........
DEBUG  | wrapperp | 2008/07/23 15:04:35 | read a packet PING : ping
DEBUG  | wrapperp | 2008/07/23 15:04:39 | send a packet PING : ping
INFO   | jvm 1    | 2008/07/23 15:04:39 | WrapperManager Debug:  
Received a packet PING : ping
INFO   | jvm 1    | 2008/07/23 15:04:39 | WrapperManager Debug: Send a  
packet PING : ping
DEBUG  | wrapperp | 2008/07/23 15:04:39 | read a packet PING : ping
DEBUG  | wrapper  | 2008/07/23 15:04:43 | Signal trapped.  Details:
DEBUG  | wrapper  | 2008/07/23 15:04:43 |   signal number=15  
(SIGTERM), source="unknown"
STATUS | wrapper  | 2008/07/23 15:04:43 | TERM trapped.  Shutting down.
DEBUG  | wrapper  | 2008/07/23 15:04:43 | wrapperStopProcess(0) called.
DEBUG  | wrapper  | 2008/07/23 15:04:43 | Sending stop signal to JVM
DEBUG  | wrapperp | 2008/07/23 15:04:43 | send a packet STOP : NULL
DEBUG  | wrapper  | 2008/07/23 15:04:43 | Signal trapped.  Details:
DEBUG  | wrapper  | 2008/07/23 15:04:43 |   signal number=20  
(SIGCHLD), source="unknown"
DEBUG  | wrapper  | 2008/07/23 15:04:43 | Received SIGCHLD, checking  
JVM process status.
DEBUG  | wrapper  | 2008/07/23 15:04:43 | JVM process exited with a  
code of 0, leaving the wrapper exit code set to 0.
WARN   | wrapper  | 2008/07/23 15:04:43 | JVM exited unexpectedly  
while stopping the application.
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
Received a packet STOP :
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
Thread, Wrapper-Connection, handling the shutdown process.
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
calling listener.stop()
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
Waiting for WrapperListener.stop runner thread to complete.
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
WrapperListener.stop runner thread started.
INFO   | jvm 1    | 2008/07/23 15:04:43 | 2008-07-23 15:04:43,074  
68314 [WrapperListener_stop_runner] INFO   
com.rdb.servertest.ServerTest  - Stopping.........0
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug: Send a  
packet STOP_PENDING : 60000
INFO   | jvm 1    | 2008/07/23 15:04:43 | 2008-07-23 15:04:43,074  
68314 [Thread-1] INFO  com.rdb.servertest.ServerTest  - Selector woke  
up.........
INFO   | jvm 1    | 2008/07/23 15:04:43 | 2008-07-23 15:04:43,074  
68314 [Thread-1] INFO  com.rdb.servertest.ServerTest  - Shutting down.
INFO   | jvm 1    | 2008/07/23 15:04:43 | 2008-07-23 15:04:43,075  
68315 [WrapperListener_stop_runner] INFO   
com.rdb.servertest.ServerTest  - Stopped.........
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
WrapperListener.stop runner thread stopped.
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
returned from listener.stop() -> 0
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug:  
shutdownJVM(0) Thread:Wrapper-Connection
INFO   | jvm 1    | 2008/07/23 15:04:43 | WrapperManager Debug: Send a  
packet STOPPED : 0
STATUS | wrapper  | 2008/07/23 15:04:43 | <-- Wrapper Stopped

As far as my stop/start methods on my WrapperListener.

     public int stop( int exitCode )
     {
         ServerTest.getLogger().log( Level.INFO, "Stopping........." +  
exitCode );
         appThread.interrupt();
         WrapperManager.signalStopping( 60000 );

         try
         {
             appThread.join( 60000 );
         }
         catch (InterruptedException ex)
         {
             ServerTest.getLogger().log( Level.INFO, "FYI, interrupt  
caught." );
         }

         ServerTest.getLogger().log( Level.INFO, "Stopped........." );

         return exitCode;
     }

As far as what my application is doing at the time of shutting down  
(again, not much).

     public void doMain()
     {
        ... A bunch of initialization code ....

        while (!Thread.currentThread().isInterrupted())
         {
             try
             {
                 selector.select();
             }
             catch (IOException ioe)
             {
                 getLogger().log( Level.ERROR, "Exception caught in  
select statement", ioe );
                 break;
             }
             getLogger().log( Level.INFO, "Selector woke up........." );

	    ....Check what selector is ready and do something which is  
nothing at this point...

         }

         getLogger().log( Level.INFO, "Shutting down.");

     }