Hello,

In our application we have

Server used : **JBOSS EAP 7.0**

For rules(Decision Table): JBPM

Use of EJB.

We are not performing any insert,update,etc queries, we are just performing **READ**.

We are passing a request and getting a response.While calling a service we are getting this error sometimes:

Exception ocurred: java.lang.ClassNotFoundException: org.hibernate.PessimisticLockException from [Module "something.war:main"] javax.ejb.EJBException: java.lang.ClassNotFoundException: org.hibernate.PessimisticLockException from [Module "something.war:main"]

I want to know:

1.Why am i getting this exception?

2.How to solve this error?

3.Is there any way we can remove locking as it is READ only and from where i can remove the locking.

Thank you in advance.