Regretably, I’m still getting the same error with 5.4.0.Beta2.
I did rebuild my PKG in 5.4.0.Beta2 Guvnor and switched my Drools dependencies
over to 5.4.0.Beta2 in my sample app pom too.
Is your 5.4.0 Snapshot later than this, and possibly it was fixed since Beta2?
Thanks,
Herm
From: Esteban [via Drools] [mailto:ml-node+s46999n3751457...@n3.nabble.com]
Sent: Thursday, February 16, 2012 12:05 PM
To: Herman Post
Subject: Re: [rules-users] KnowledgeAgent custom class loader not working for
PKG resources
Could you please try using 5.4.0-SNAPSHOT? I tried to reproduce your error in
that version, but I couldn't. Using 5.3.1 I experienced the error you mentioned.
Please note that in order to change drools version you need to have a binary
.pkg compiled using the same version.
Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2012/2/16 Herman Post <[hidden
email]</user/SendEmail.jtp?type=node&node=3751457&i=0>>
In debug, KnowledgeAgentImpl.createPackageFromResource(), the last line to run
is DroolsStreamUtils.streamIn(is), then an excecption is caught:
this.listener.exception( new RuntimeException( "KnowledgeAgent exception while
trying to deserialize KnowledgeDefinitionsPackage ", ex));
The exception here says “java.lang.ClassNotFoundException:
org.ihc.hwcir.drools.facts.Patient”, which is my Fact model. It doesn’t seem
to get surfaced anywhere.
As my sample illustrates, if I switch to DRL changeset, or put Patient.jar on
classpath all works fine.
Thanks,
Herm
From: [hidden email]</user/SendEmail.jtp?type=node&node=3751457&i=1>
[mailto:[hidden email]</user/SendEmail.jtp?type=node&node=3751457&i=2>] On
Behalf Of Esteban Aliverti
Sent: Thursday, February 16, 2012 10:33 AM
To: Rules Users List
Subject: Re: [rules-users] KnowledgeAgent custom class loader not working for
PKG resources
By the way, in the stacktrace you pasted I only see a NullPointerException, but
no ClassNotFoundException. Where are you seeing the ClassNotFoundException?
Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2012/2/16 Herman Post <[hidden
email]</user/SendEmail.jtp?type=node&node=3751457&i=3>>
Thanks Esteban, I will enter in Jira.
Herm
From: [hidden email]</user/SendEmail.jtp?type=node&node=3751457&i=4>
[mailto:[hidden email]</user/SendEmail.jtp?type=node&node=3751457&i=5>] On
Behalf Of Esteban Aliverti
Sent: Thursday, February 16, 2012 10:07 AM
To: Rules Users List
Subject: Re: [rules-users] KnowledgeAgent custom class loader not working for
PKG resources
Seems like a bug to me. The best you can do is to rise a Jira issue.
Actually, the best you can do is to provide a patch also ;)
Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
On Thu, Feb 16, 2012 at 5:59 PM, Hrumph <[hidden
email]</user/SendEmail.jtp?type=node&node=3751457&i=6>> wrote:
Sorry for being a nuisance, but unless we are doing something wrong, this is
a significant issue for us. We are trying to deploy Drools on a remote
server and hope to pull PKG Changesets and Fact models from Guvnor. It is
essential that we can use custom Classloaders in our design.
Should I just enter this in Jira?
Thanks,
Herm
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