Java HotSpot Virtual Machine

Hi!

I am using Netbeans, and have to write application on Java with given dll library. The task is connected with given dll library for communication and other functions for smart card and reader.

So, I am given the SDK but it is dll. I was confused, so begun to search and now I knew about this JNI.

I have this problem:

"Should I use the JNI to use the dll library in Java application or there is other way, because it is know that : Java applications that depend on the JNI can no longer readily run on
multiple host environments and there is lack of secure."

So, what i have to do?

Thanks, for the answers.