[rules-users] Weird drools exception happens from times to times

[Paulo Reis]

Never mind, it seems I had mixed versions of drools, v5.4.0-SNAPSHOT compiled pkg together with 5.4.0-Final.

One question, is it possible to figure out the current drools version? If Im using drools v5.4.0-Final on classpath, I would like to get this version somehow like:

DroolsUtils.getCurrentVersion()

Thanks in advance.

Paulo Reis
casmeiron at gmail.com



On Aug 23, 2012, at 2:27 PM, Paulo Reis <casmeiron at gmail.com> wrote:

> Hi guys,
> 
> This exception is bothering me. I have a server running drools in after few days, drools starts throwing it and I have to recompile all the knowledge packages to make it work again.
> 
> Does anyone knows what is triggering it?
> 
> Thanks in advance.
> 
> SEVERE|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=25;_ThreadName=Thread-2;|java.lang.ClassCastException: org.drools.reteoo.FromNode cannot be cast to org.drools.reteoo.BetaNode
> 	at org.drools.reteoo.ReteooBuilder.resetMasks(ReteooBuilder.java:303)
> 	at org.drools.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java:267)
> 	at org.drools.reteoo.ReteooRuleBase.removeRule(ReteooRuleBase.java:459)
> 	at org.drools.common.AbstractRuleBase.removeRule(AbstractRuleBase.java:1107)
> 	at org.drools.common.AbstractRuleBase.mergePackage(AbstractRuleBase.java:851)
> 	at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:610)
> 	at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472)
> 	at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
> 
> 
> Paulo Reis
> casmeiron at gmail.com
> 
> 
> 

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