DO NOT modify any of these parameters unless you have read this property description.
Incorrect settings can cause the Wrapper to fail to operate as expected.
Disable detection of calls to System.exit().
If disabled, calls to System.exit() will be
treated as if the JVM had crashed and the Service will be restarted.
The Wrapper registers a Shutdown Hook by default.
If an application ever calls
System.exit() rather than
to stop the service, then the Wrapper will correctly shutdown the server.
You may wish to disable the Shutdown Hook for a number of reasons.
If an application contains code which sometimes fails and calls
System.exit(), this property can be useful to make sure that the
server comes back up. In most cases however, the
is better suited for resolving this problem.
When the Wrapper detects that
System.exit() has been called,
it will call the stop() method on your application
if it implements the WrapperListener method.
You must be careful that your application does not
call System.exit() again
or call the dispose() method on an AWT frame or window.
Either one of these actions will result in a deadlock
when called from within a ShutdownHook thread
due to the way Java has implemented these methods.
If either of these cases can not be avoided, then the Shutdown Hook should be disabled.
If you have control over whether the
dispose() methods are called,
you may be able to make use of the
method to avoid the deadlock issue.
For more information on the AWT deadlock bug, see the full description of
on Sun's site.
The Java Service Wrapper provides a full set of configuration properties that allows you to make the Wrapper meet your exact needs.
Please take a look at the documentation for the individual properties to see all of the possibilities beyond the examples shown above.