It seems like you have mixed up versions of things between HarDeployer and the Hibernate MBean.
Somehow you are using a version of JBoss with a HARDeployer version which actually tries to set the Hibernate.HarURL attribute along with a Hibernate MBean version in which the HarURL attribute was made read-only.
See the JIRA link I posted previously for a full discussion
Thanks now its working
I have the same problem as described above. Can you please tell me how you fixed it, cause I didn't really get the discussion at the give link....
Just remove all the previous installation and install everything freshly....