Thanks for the quick answer Esteban.

I checked the jars on both my client side and in the webapps\drools-guvnor\WEB-INF\lib of the guvnor install and they’re both: drools-core-5.1.1.jar (I even put the same jar myself to make sure).

I’ve also tried to change the value of private static final long serialVersionUID = 510l; in both drools-5.1.1-src\drools-core\src\main\java\org\drools\rule\Package.java and DialectRuntimeRegistry.java but when I do this, the local class incompatible: stream classdesc serialVersionUID = 5308493362083281112 changes as well.

I’m sure there is something silly I must be doing on my side, but I cannot find what.

All the best,
Pierre

Od: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] W imieniu esteban.aliverti@gmail.com
Wysłano: Thursday, October 07, 2010 8:08 PM
Do: Rules Users List
Temat: Re: [rules-users] Loading packages from KnowledgeAgent and Guvnor 5.1

Make sure that the drools' version you are using matches with Guvnor's version.

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Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com

2010/10/7 Pierre de Leusse <pdl@agh.edu.pl>

Hello everyone,

I’ve deployed Guvnor as a war in Tomcat and I’m trying to load a drools example (drools-5.1.1-src/drools-examples/drools-examples-brms/mortgage-example/mortgage-sample-repository.xml) as a package into a KnowledgeAgent using the code shown there (http://pastebin.com/TvJn9PeQ).

I get a few exceptions including: java.io.InvalidClassException: org.drools.rule.Package; local class incompatible: stream classdesc serialVersionUID = 400, local class serialVersionUID = 510 (full trace available at http://pastebin.com/fRvRMtfR).

I’ve tried several things, including checking the serialVersionUID of org.drools.rule.DialectRuntimeRegistry and org.drools.rule.Package as the jiira (https://jira.jboss.org/browse/BRMS-320?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#issue-tabs) suggests, but no luck.

My code may be buggy and I would welcome corrections/suggestions.

All the best,

Pierre

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