Comment by brokenwren

Actually, Loom is about threading and helps support NIO. You'll still need Selectors, Channels, and ByteBuffers with Loom, you'll just be able to pass off the parsing and handling to a Fiber. You might be able to get away with doing the IO blocking with Fibers, but it likely won't scale. Non-blocking IO is still way faster at the OS level so my guess is that Loom will simply replace 10-20 lines of code in java-http and the majority of the IO will be the same.