A lot of Java/.NET integration advice starts with “just make it an API.” That works until the call path is fine-grained, latency-sensitive, or tied to desktop/server code that already runs on the same machine.

For those cases, shared memory is worth understanding. This walkthrough breaks down what an in-process Java/.NET bridge actually needs: proxy assemblies, runtime DLLs, JVM configuration, Java-side JARs, and the architecture checks that prevent painful startup failures.

What We're Building

We'll dissect a .NET application that calls into a Java class using JNBridgePro with shared memory.…