How do I import instantiate Java class within C#

Then please look at Solution 1. :-)
—SA

While that is a solution to the user's problem, you still aren't directly instantiating a Java object inside of C#. That library looks like it is building a proxy to sync or marshal the data to between the two run times. At the heart of it, the Java object doesn't live in the C# world. Depending on what the needs is for it, these types of solutions scare me. The potential for performance problems, buffer overflows, security risks (the list could go on) are huge red flags for me. My personal opinion is that you should build a SOAP or RESTful service to pass data between the two run times.

None the less, still a neat tool for the toolbox.

Who is talking about "direct instantiation"? I think you are right about the nature of this library, but still it denies your clear-cut "not possible". It's a matter of understanding of what exactly is possible or impossible.

From the other hand, I would agree if you or someone blamed the whole idea for being very impractical, because of this indirection, not only due performance and security risks, but dues to general unnecessary complications. I would probably try to avoid messing with such things by all means. I doubt that the Java class in question could be so valuable to mess with it. Just reimplementing it in C# would be much more neat approach.

—SA