how to call a java method without creating a jar file or scriptlet in iReport?

Hi all

 created a scriptlet and it working fine on my local machine but when uploaded to the server a got "a ClassNotFound" exception. I don't know the class path in the server so I had to ask a server admin to add a jar file to the class path for me but it still didn't work, with the same error too.

So to run away from adding a jar file to the "class path i don't know", is it possible to call a java method without creating a jar file. can i just embed my java/groovy class to the .jrxml file?

Thanks