Java Object to VB DLL

Good Day

I am using Aris 7.0, an Enterprise Architecture tool. They provide a
scripting language that is based on javascript. A Jar file for programming
in Java and a DLL for programming in VB.

What I am currently able to do is:
Call a java program from the script and pass the ArisData object to the Java
App.
I have successfully implemented the JAWIN jar file to pass primitive data
types to my VB DLL.

The problem is that I cannot pass the ArisData object to the VB DLL, it's
not a primitive type and I get the following error:
Type cannot be marshalled to variant

Is there anyway I can pass this Object to the VB DLL?

Thank You