Hi Jason ,
Yes I tried that and it worked.Thanks.

However the problem is as follows:

I am using a third party software that uses BIRT Report Engine api.
So I can't make changes to their code . So I was thinking if their is
any workaround without adding any changes to the already existing code.
I tried including my jars in their jvm's classpath , however rhino is
still not
able to access them .

They have not set the property EngineConstants.WEBAPP_CLASSPATH_KEY.
Does including the jar's in the Classpath of JVM is enough ?

Sorry if this is naive and I am dragging you into it.
This problem is bothering me from a long time.