[jboss-jira] [JBoss JIRA] Created: (EJBTHREE-1018) ClassCastException on concurrent EJB3 method invocation from different beans

[Michael Pfeiffer (JIRA)]

ClassCastException on concurrent EJB3 method invocation from different beans
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                 Key: EJBTHREE-1018
                 URL: http://jira.jboss.com/jira/browse/EJBTHREE-1018
             Project: EJB 3.0
          Issue Type: Bug
    Affects Versions: AS 4.2.1.GA, AS 4.2.0 GA
         Environment: Java: JDK 1.5.0_11
Eclipse: SDK 3.2.2
            Reporter: Michael Pfeiffer


Two different EJB3 stateless session beans A and B packaged into separate EAR files deployed on the same JBoss instance 
invoke a method of another stateless session bean C on another JBoss instance that returns an object of a user 
defined class Value.
There seems to be a multi-threading issue. 
Sometimes when both beans concurrently call the method of C an ClassCastException Value is thrown within the remote 
interface proxy before the result object is returned to the calling bean.
The class Value and the remote interface for C are packaged into a JAR file within each EAR file inside a "lib" folder.

If this JAR file is deployed instead and not packaged into the EAR files of bean A and B everything works fine.


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