Re: [Wrapper-user] Restart VM

[Jacques B. <jac...@gm...>]

Leif. The app is deployed with the Sun JVM and it also locks the jars. So my
problem is that I cannot replace the old jar file with the new one while the
VM is still running.

Jacques

----- Original Message ----- 
From: "Leif Mortenson" <le...@ta...>
To: <wra...@li...>
Sent: Monday, December 01, 2003 1:56 PM
Subject: Re: [Wrapper-user] Restart VM


: Jacques,
:     You should be able to download the new jars and place them in the
: correct directory.
: That should be doable without the Wrapper.  (You may have problems with
: the IBM JVM?
: because it locks the files?  This is from memory, so it may be wrong :-/)
:
:     Anyway, once you have the new jar files in place, all you need to do
: is trigger the
: Wrapper to restart the JVM.   You could do that using a filter as you
: specified or
: you could simply call WrapperManager.restart().  I would suggest the
: later as it does
: not require anything in the wrapper.conf file.
:
: Cheers,
: Leif
:
: Jacques Bosch wrote:
:
: >Hi there Leif.
: >
: >I want to know another thing.
: >
: >I have a java app that runs unattended and that needs to do a self update
to
: >the latest version completely independently, without any user
intervention.
: >The app periodically checks for a new version, and if it finds it,
downloads
: >the new jar file. But the thing is that the app obviously can't update
: >itself.
: >I want to know if it is possible to use the wrapper in some way to copy
the
: >new jar over the old one before starting up the VM again.
: >So in that way I would be able to write an "New Update Available..."
message
: >to the console and catch that with a wrapper filter trigger to restart
the
: >VM.
: >
: >Any thoughts or suggestions on how to do this?
: >
: >Thanx, Jacques
: >
: >
:
:
:
:
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