java.lang.ClassCastException: org.jboss.tm.usertx.client.ServerVMClientUserTransaction cannot be cast to javax.transaction.UserTransaction in jBPM application deployed on JBoss EAP

Issue

• I get the following Exception when I deploy jbpm-human-task.war.

ERROR [[/jbpm-human-task]] Servlet /jbpm-human-task threw load() exception
java.lang.ClassCastException: org.jboss.tm.usertx.client.ServerVMClientUserTransaction cannot be cast to javax.transaction.UserTransaction
        at org.drools.persistence.jta.JtaTransactionManager.findUserTransaction(JtaTransactionManager.java:119)

• Also, I get the following Exception with my jBPM application as well.

ERROR [STDERR] java.lang.ClassCastException: org.jboss.tm.usertx.client.ServerVMClientUserTransaction cannot be cast to javax.transaction.UserTransaction
ERROR [STDERR]     at com.example.ProcessManager.getTransactionManager(ProcessManager.java:405)
ERROR [STDERR]     at com.example.ProcessManager.beginTransaction(ProcessManager.java:412)
ERROR [STDERR]     at com.example.ProcessManager.startProcess(ProcessManager.java:82)

Can you please suggest me the how to solve this issue?