[rules-users] Drools Execution Server and NoClassDefFound

[Régis Ramillien]

Hello,

Please forgot the question.

The error was not related to a class not found. So, why this
NoClassDefFoundError???

In fact, the rule created a loop .
When I add the "no-loop" attribute to the rule, it works fine.

Regards,

Régis Ramillien

Le 28 janvier 2010 09:20, Régis Ramillien <regis.ramillien at gmail.com> a
écrit :

>
> Hello,
>
> I have a problem using execution server. It sends a NoClassDefFoundError.
> I search for hours, but find nothing...
>
> Why I have done, in guvnor:
> I have created :
> -- a package "com.myorg.myapp"
> ---- a declarative model "Model1"
> ------ with a fact "Fact1"
> -------- with a text field "field1"
> -------- with an integer field "field2"
> ---- a Business Rule "rule1"
> ------ which test for the "field1" value, and set the "field2" to a dummy
> value.
>
> I then created a snapshot called 'release'
>
> I created a myappAgent.properties with the following values:
> name=mrgAgent
> newInstance=true
> url=
> http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/com.myorg.myapp/release
> poll=60
> I put the file in drools-server classes directory
>
> I then tried to call execution server using CURL:
> curl --data "<knowledgebase-request><
> inOutFacts><named-fact><id>Fact1</id><fact
> class='com.myorg.myapp.Fact1'><field1>Any
> response?</field1></fact></named-fact></inOutFacts></knowledgebase-request>"
> http://localhost:8080/drools-server/knowledgebase/myappAgent
>
> And the server (drools-server I assume, not guvnor ?), send me this
> response:
> ...
> ling this request.</u></p><p><b>exception</b>
> <pre>javax.servlet.ServletException: Servlet execution threw an exception
>
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
> </pre></p><p><b>root cause</b> <pre>java.lang.NoClassDefFoundError:
> com/myorg/myapp/Fact1
>         ASMAccessorImpl_87013581264610722640.getValue(Unknown Source)
>
> org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:66)
>         org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:99)
>         org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
>
> org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:107)
>         org.mvel2.MVEL.executeExpression(MVEL.java:978)
>
> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:87)
>
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
>
> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
>
> org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
>
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
>
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:637)
>
> org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:203)
>
> org.drools.server.KnowledgeStatelessServlet.doService(KnowledgeStatelessServlet.java:152)
>
> org.drools.server.KnowledgeStatelessServlet.doPost(KnowledgeStatelessServlet.java:82)
>         javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
>         javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>
> What have I done wrong ???
> Please ,help me !!!
>
> Regards,
>
> Régis Ramillien
>
>
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