Calling C++ from Java using CNI ?

Hi,
I have been trying to find out how to call C++ code from Java using
CNI. Is this at all possible?

I found this page in the documentation which suggests a possible way:

http://gcc.gnu.org/onlinedocs/gcj/Interfaces.html#Interfaces

But I have been unable to make anything  work using this. Are there
any code examples?

Regards,

-Gareth

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