[R] Class Not found execption

I am trying to call a r file named es.r which have lotes of R functions. These R functions are internally calling java functions by using ".jnew()" and ".jcall()". I have added necessary jar's to the Classpath and I am able to run es.r from command prompt . But when I tried to call it

[R] Class Not found execption

I am trying to call a r file named es.r which have lotes of R functions. These R functions are internally calling java functions by using ".jnew()" and ".jcall()". I have added necessary jar's to the Classpath and I am able to run es.r from command prompt . But when I tried to call it