[jboss-jira] [JBoss JIRA] (DROOLS-566) Drools 6.1.CR2 is not compatible with mvel 2.2.1

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-566.
--------------------------------

    Resolution: Rejected


Drools 6.1.0.CR2 has been release the 8th of July and I released mvel 2.2.1.Final exactly one week later. This means that Drools 6.1.0.CR2 has been release with mvel 2.1.9.Final as dependency and we know that mvel 2.1.9 and 2.2.1 are not compatible, so it is not surprising that Drools 6.0.1.CR2 doesn't work with mvel 2.2.1.

I checked that the example you linked works fine with mvel 2.2.1.Final and the latest Drools 6.1.0-SNAPSHOT.

> Drools 6.1.CR2 is not compatible with mvel 2.2.1
> ------------------------------------------------
>
>                 Key: DROOLS-566
>                 URL: https://issues.jboss.org/browse/DROOLS-566
>             Project: Drools
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>            Reporter: Claus Ibsen
>            Assignee: Mario Fusco
>
> We have a drools 6 example in fabric8 and we got this exception after upgrading mvel from 2.1.9 to 2.2.1
> {code}
> Stacktrace
> org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ksession-table-1': Cannot resolve reference to bean 'decisionCSV' while setting bean property 'kBase'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'decisionCSV': Invocation of init method failed; nested exception is java.lang.IncompatibleClassChangeError: Implementing class
> 	at java.lang.ClassLoader.defineClass1(Native Method)
> 	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
> 	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
> 	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> 	at org.drools.compiler.rule.builder.RuleBuildContext.<init>(RuleBuildContext.java:86)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.buildRuleBuilderContext(KnowledgeBuilderImpl.java:1628)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.preProcessRules(KnowledgeBuilderImpl.java:981)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileRules(KnowledgeBuilderImpl.java:962)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAllRules(KnowledgeBuilderImpl.java:842)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildRules(CompositeKnowledgeBuilderImpl.java:279)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackages(CompositeKnowledgeBuilderImpl.java:103)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:91)
> 	at org.drools.compiler.kie.builder.impl.AbstractKieModule.buildKnowledgePackages(AbstractKieModule.java:219)
> 	at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:386)
> 	at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:346)
> 	at org.kie.spring.KieObjectsResolver.resolveKBase(KieObjectsResolver.java:51)
> 	at org.kie.spring.factorybeans.KBaseFactoryBean.afterPropertiesSet(KBaseFactoryBean.java:139)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
> 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
> 	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
> 	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1417)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1158)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
> 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
> 	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
> 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:615)
> 	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
> 	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
> 	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
> 	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
> 	at io.fabric8.example.drools.KieSpringDecisionTest.setup(KieSpringDecisionTest.java:41)
> {code}
> It works if we keep mvel version at 2.1.9.
> Just wanted the heads-up as other people may hit that issue.



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