The last one we tested for the drools 4 branch was MVEL 1.3.9:

https://svn.jboss.org/repos/labs/labs/jbossrules/branches/4.0.x/pom.xml

   Update to it and give it a try.

   []s
   Edson

2010/1/30 @ndré <andre@bonkowski.net>

Hi Edison, and thanks for the quick response. The manifest file says 1.3.1
May 6 2008
I also see that there exists a 1.3.16 December 29 2008, but I get an other
error when I replaces my original jar with this one.


java.lang.NoSuchMethodError: org.mvel.MVEL.setThreadSafe(Z)V
   at
org.drools.rule.builder.dialect.mvel.MVELDialect.init(MVELDialect.java:144)
   at org.drools.compiler.DialectRegistry.initAll(DialectRegistry.java:49)
   at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:146)
   at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:108)
   at
com.telenor.cos.domain.rules.RuleCompiler.init$_aroundBody2(RuleCompiler.java:83)
   at
com.telenor.cos.domain.rules.RuleCompiler.init$_aroundBody3$advice(RuleCompiler.java:202)
   at
com.telenor.cos.domain.rules.RuleCompiler.compileAndAddRuleTemplate(RuleCompiler.java:83)
   at
com.telenor.cos.domain.rules.RuleCompiler.compileAndAdd(RuleCompiler.java:51)
   at
com.telenor.cos.domain.rules.COSRulesTestCaseBase.executeRule(COSRulesTestCaseBase.java:284)

I guess I have to update some other jar's as well.

@ndré


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 Edson Tirelli
 JBoss Drools Core Development
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