Streaming in this case means that you can start generating (or even executing) code before you have complete input. There are some mostly ignorable reasons (hav

Streaming in this case means that you can start generating (or even executing) code before you have complete input. There are some mostly ignorable reasons (having to do with bytecode verification) why you should not stream-JIT Java bytecode. On the other hand in the whole ecosystem you will not gain anything wothwhile given the fact that you need the JVM state to be essentially complete before you start executing anything and on slightly lower-level the .class file format is designed to be compact and not meaningfully streamable.