Facing issue while Connecting to SAP JMS Provider with HERMES

Dear Experts,

I am trying to connecting to SAP JMS Provider with Hermes tool. I am following the below blog.

http://wiki.scn.sap.com/wiki/display/XI/HowTo%3A+Connect+to+SAP+JMS+Provider+with+HERMES?focusedCommentId=403572077#comment-403572077

I am facing issue while i am trying to connect to the JMS resource (Step4 as per the blog).  Here's the error i am facing

javax.jms.JMSException: Could not create InitialContext: Cannot instantiate class: com.sap.engine.services.jndi.InitialContextFactoryImpl

  at hermes.JNDIContextFactory.createContext(JNDIContextFactory.java:282)

  at hermes.browser.components.ContextTreeModelFactory.create(ContextTreeModelFactory.java:58)

  at hermes.browser.tasks.JNDIBrowseTask.invoke(JNDIBrowseTask.java:59)

  at hermes.browser.tasks.TaskSupport.run(TaskSupport.java:175)

  at hermes.browser.tasks.ThreadPool.run(ThreadPool.java:170)

  at java.lang.Thread.run(Thread.java:662)

Thanks,

Pavan T,