[b]Exception Stack Trace[/b]
16:18:30,681 ERROR [STDERR] org.hibernate.HibernateException: Unable to locate current JTA transaction
   at org.hibernate.context.JTASessionContext.currentSession(JTASessionContext.java:61)
   at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:544)
   at com.sample.new.services.data.dao.GenericHibernateDAO.<init>(GenericHibernateDAO.java:37)
   at com.sample.new.services.data.dao.ConsumerDAO.<init>(ConsumerDAO.java:5)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
   at java.lang.Class.newInstance0(Class.java:350)
   at java.lang.Class.newInstance(Class.java:303)
   at com.sample.new.services.data.daofactory.HibernateDAOFactory.instantiateDAO(HibernateDAOFactory.java:16)
   at com.sample.new.services.data.daofactory.HibernateDAOFactory.getConsumerDAO(HibernateDAOFactory.java:11)
   at com.sample.new.ejb.consumer.ConsumerBO.updateLoginCredentials(ConsumerBO.java:12)
   at com.sample.new.ejb.consumer.ConsumerBean.getCountry(ConsumerBean.java:17)
   at org.apache.jsp.forgotPassword_jsp._jspService(forgotPassword_jsp.java:75)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
   at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
   at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
   at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
   at java.lang.Thread.run(Thread.java:595)

[b]My EJB[/b]

@Stateless
@TransactionManagement(value=TransactionManagementType.CONTAINER)
public class ConsumerBean implements ConsumerBeanLocal{
   
   @javax.ejb.TransactionAttribute(TransactionAttributeType.REQUIRED)
   public Boolean getCountry(CountryDO countryDO) throws Exception{
      
      ConsumerBO consumerBO = new ConsumerBO();
      consumerBO.updateLoginCredentials(countryDO);
       return true;
   }
}
[b]Hibernate Config XML[/b]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
      "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
      "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
       
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.username">xxxxx</property>
        <property name="hibernate.connection.password">yyyyy</property>
        <property name="hibernate.default_schema">zzzzz</property>
        <property name="hibernate.connection.url">jdbc:mysql://10.66.166.139:3306/zzzzz</property>
      <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
       
        <property name="hibernate.transaction.manager_lookup_class">
        org.hibernate.transaction.JbossTransactionManagerLookup</property>
       
        <property name="hibernate.transaction.factory_class">org.hibernate.transaction.CMTTransactionFactory</property>             
       
        <property name="hibernate.use_sql_comments">true</property>
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <mapping resource="com/sample/new/services/data/hbms/Country.hbm.xml"/>
             
    </session-factory>
</hibernate-configuration>
[b]GenericHibernateDAO constructor[/b]
public GenericHibernateDAO() {
      try {
         session = HibernateUtil.getSessionFactory().getCurrentSession();
         session.beginTransaction();   
      } catch (HibernateException hExp) {
         hExp.printStackTrace();
         throw hExp;
      }
   }
[b]My Hibernate Util Class[/b]

public class HibernateUtil {

    private static final SessionFactory sessionFactory;

    static {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            sessionFactory = new Configuration().configure("hibernate.cfg.xml").buildSessionFactory();
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }

}