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

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