EAP6 is not able to load the class org.hibernate.context.ThreadLocalSessionContext

Issue

• While running Hibernate based application the following exception is being thrown:

16:58:19,271 INFO  [org.hibernate.tool.hbm2ddl.SchemaExport] (ServerService Thread Pool -- 71) HHH000230: Schema export complete
16:58:19,273 ERROR [org.hibernate.internal.SessionFactoryImpl] (ServerService Thread Pool -- 71) HHH000302: Unable to construct current session context [org.hibernate.context.ThreadLocalSessionContext]: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.context.ThreadLocalSessionContext]
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:149) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.internal.SessionFactoryImpl.buildCurrentSessionContext(SessionFactoryImpl.java:1532) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:515) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1750) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94) [hibernate-entitymanager-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:920) [hibernate-entitymanager-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904) [hibernate-entitymanager-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:92) [hibernate-entitymanager-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:200) [jboss-as-jpa-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.access$600(PersistenceUnitServiceImpl.java:57) [jboss-as-jpa-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]
    at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:99) [jboss-as-jpa-7.2.0.Final-redhat-8.jar:7.2.0.Final-redhat-8]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146) [rt.jar:1.6.0_24]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.6.0_24]
    at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_24]
    at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.context.ThreadLocalSessionContext
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$AggregatedClassLoader.findClass(ClassLoaderServiceImpl.java:296) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321) [rt.jar:1.6.0_24]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266) [rt.jar:1.6.0_24]
    at java.lang.Class.forName0(Native Method) [rt.jar:1.6.0_24]
    at java.lang.Class.forName(Class.java:266) [rt.jar:1.6.0_24]
    at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:146) [hibernate-core-4.2.0.Final-redhat-1.jar:4.2.0.Final-redhat-1]
    ... 14 more

• Following kind of JPA configuration is used in the "persistence.xml" file:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
    xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="EmployeeService"> 
        <non-jta-data-source>ds/XYZDS</non-jta-data-source>
        <!--class>jpa.Employee</class-->
        <properties>
                        <property name="hibernate.hbm2ddl.auto" value="create-drop" />
                        <property name="hibernate.show_sql" value="true" />
                        <property name="hibernate.current_session_context_class" value="org.hibernate.context.ThreadLocalSessionContext"/>
                        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
        </properties>
    </persistence-unit>
</persistence>