RE: Can we stop tomcat using System.exit(int)

[kiran.tadepalli]

Thank you David, change in security manager worked.

I'm not sure whether I can change the java.policy file while the application is 
moved to production;

However, including exitVM as one of the Runtime Permission in policy file 
made it possible.

Thanks for the direction.


Regards,
Kiran Tadepalli

-Original Message-
From: David Delbecq [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 07, 2006 2:53 PM
To: Tomcat Users List
Subject: Re: Can we stop tomcat using System.exit(int)

Just my 2 cents,
Have you tried to set priviledged to true in webapp context?
Also you may need to play a bit with the security manager as J2EE specs does 
not endorse the use of System.exit in a webapplication.

[EMAIL PROTECTED] a écrit :

Hi,

My web application requires database pool connection while startup,
when it fails for any reason I need to stop the tomcat server as well.
I have used System.exit(int); int here I tried with Zero and non-zero
value.

The result is tomcat gets hung.

I understand it has to do with Java rather than Tomcat, however I'm
looking for a suggestion to stop tomcat in a way similar to the above.

I have learnt to stop tomcat
a) programmatically using Bootstrap classes, (stops successfully only
if you start programmatically)
b) by invoking shutdown.sh
c) by connecting to the server at port 8005, and send the shutdown
string.

All the above methods have yielded the same result, moreover it would
make my application coded specific to tomcat or Linux;

I have also googled with the phrase ~tomcat crash, stop ~tomcat,
system.exit ~tomcat, system.exit ~jvm; to at least find out that
the task cannot be done, however it helped me a little.

Here are the versions of server, os and java I'm using.
Tomcat: 5.x
OS : Red Hat Enterprise Linux AS 3.0
Java: 1.5

Can somebody help me regarding the same.

Regards,
Kiran Tadepalli




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Re: Can we stop tomcat using System.exit(int)

[Mike Sabroff]

when you call System.exit(), you shut down the jvm. It is no wonder that 
tomcat gets hung.
you don't want to make your code specific to tomcat, but yet you want to 
shut tomcat down??
write a method that does a system call, kill -9 pid catalina.pid is a 
file containing the pid of the tomcat instance (found in CATALINA_HOME 
or wherever your environment is set to put in. If you switch servlet 
engines, this will still work with minor modifications. crude, but so is 
System.exit().


[EMAIL PROTECTED] wrote:

Hi,

My web application requires database pool connection while startup, when
it fails for any reason I need to stop the tomcat server as well.
I have used System.exit(int); int here I tried with Zero and non-zero
value.

The result is tomcat gets hung.

I understand it has to do with Java rather than Tomcat, however I'm
looking for a suggestion to stop tomcat in a way similar to the above.

I have learnt to stop tomcat
a) programmatically using Bootstrap classes, (stops successfully only if
you start programmatically)
b) by invoking shutdown.sh
c) by connecting to the server at port 8005, and send the shutdown
string.

All the above methods have yielded the same result, moreover it would
make my application coded specific to tomcat or Linux;

I have also googled with the phrase ~tomcat crash, stop ~tomcat,
system.exit ~tomcat, system.exit ~jvm; to at least find out that
the task cannot be done, however it helped me a little.

Here are the versions of server, os and java I'm using.
Tomcat: 5.x
OS : Red Hat Enterprise Linux AS 3.0
Java: 1.5

Can somebody help me regarding the same.

Regards,
Kiran Tadepalli




The information contained in this electronic message and any attachments to 
this message are intended for the exclusive use of the addressee(s) and may 
contain proprietary, confidential or privileged information. If you are not the 
intended recipient, you should not disseminate, distribute or copy this e-mail. 
Please notify the sender immediately and destroy all copies of this message and 
any attachments.

WARNING: Computer viruses can be transmitted via email. The recipient should 
check this email and any attachments for the presence of viruses. The company 
accepts no liability for any damage caused by any virus transmitted by this 
email.

www.wipro.com
  


--
Mike Sabroff
Web Services
Developer
[EMAIL PROTECTED]
920-568-8379


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