SPI class ServerVMClientUserTransaction should be Serializable and Referenceable -------------------------------------------------------------------------------- Key: JBTM-2449 URL: https://issues.jboss.org/browse/JBTM-2449 Project: JBoss Transaction Manager Issue Type: Bug Components: SPI Affects Versions: 5.1.1 Reporter: Michael Musgrove Assignee: Michael Musgrove Fix For: 5.next This SPI class implements UserTransaction but does not follow the JNDI conventions. The JTA specification (section 3.1) says: bq. The implementation of the UserTransaction object must be both javax.naming.Referenceable and java.io.Serializable , so that the object can be stored in all JNDI naming contexts.