> but if (!) you use JVM you are using an interpreter
You're using an interpreter to start with, but then it dynamically compiles machine code to run instead of using the interpreter.
But these terms are very fluid. I'd call HotSpot an interpreter, and a compiler, and both at the same time. It depends how you're looking at it at that moment.
I get what you are trying to say but if (!) you use JVM you are using an interpreter.