MBean classloading in Sun Java Application Server 9.0
Hi,
I am having a classloading issue when attempting to register my custom MBeans within the Sun Java Application Server 9.0 environment.
The instructions say I can put either my classes or a Jar archive in domain_dir/applications/mbeans. When I put just the class files there it works fine. However, when I attempt to Jar those same class files (properly I might add) and put that Jar there it fails to find the mbean classes.
Does anyone know anything about this?
Thanks for any help.
[517 byte] By [
bkatnicha] at [2007-11-26 20:38:58]
# 1
Hi bkatnich,
The idea was that of simple MBeans should be "deployable" (using asadmin create-mbean command, or admin GUI) . So, the classes would go to
<domain-folder>/applications/mbeans.
But if you have a jar file, the place to put the jar file is "install-dir/lib", and
restart the server.
The former is for dynamic deployment, the latter for more permanent use.
If you place the jar file in applications/mbeans, then it will not be used.
Where was it documented? I will correct it.
Regards.
Kedar
(BTW, can you let me know what you think of custom MBean feature in
app server 9.0?)
# 2
Hi Kedar,
Thanks for the reply. Yes, I finally figured it out.
The custom MBeans seem to work well for the most part though I don't know for sure if I'm using them in the way they were really intended.
Basically, I want to run 'services' on my application server for the lifetime of the server. I want these 'services' to maintain things like runtime caching of information over time that is not persisted in a DB but needs to be kept around in active memory to be used at a later time, but only while the application server is up and running.
Another thing I would like to do is have them receive JMS notifications directly, but I seem to be having trouble when subscribing as a consumer within my custom MBean. The topic thread on that is here:
http://forum.java.sun.com/thread.jspa?threadID=5153124&tstart=0
