I think the big one is that it's written in Java so it runs seamlessly on the JVM. While JNI allows you to wrap native libraries for the JVM, it tends to mix po

I think the big one is that it's written in Java so it runs seamlessly on the JVM. While JNI allows you to wrap native libraries for the JVM, it tends to mix poorly with the common artifact management and deployment pipelines. The main use I've put it to over the years is as an in-memory database for integration tests.