[jboss-jira] [JBoss JIRA] Assigned: (JBRULES-2421) org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class MyClass] on IBM JVM with JIT enabled

[Tihomir Surdilovic (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-2421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tihomir Surdilovic reassigned JBRULES-2421:
-------------------------------------------

    Assignee: Tihomir Surdilovic  (was: Mark Proctor)


> org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class MyClass] on IBM JVM with JIT enabled
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-2421
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2421
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 4.0.7
>            Reporter: Tihomir Surdilovic
>            Assignee: Tihomir Surdilovic
>
> On IBM JVM with JIT enabled using Drools 4.0.7 often the following exception occurs:
> org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class MyClass]
>        at org.drools.base.ValueType.determineValueType(ValueType.java:222)
>        at org.drools.base.ClassObjectType.<init>(ClassObjectType.java:56)
>        at org.drools.reteoo.Rete$ClassObjectTypeConf.<init>(Rete.java:442)
>        at org.drools.reteoo.Rete.assertObject(Rete.java:152)
> ...
> We have determined that in the IBM JVN with JIT enabled, the expression "XXXX instanceof Object" fails sometimes. On the other hand expression "XXXX isAssignableFrom(YYYYYY) ... " works as expected. The code change required here is in org.drools.base.ValueType change:
> ...
> } else if ( clazz instanceof Object ) {
> return ValueType.OBJECT_TYPE;
> ...
> to 
> ...
> else if ( Object.class.isAssignableFrom( clazz ) ) {
>           return ValueType.OBJECT_TYPE;
> ...

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