Thanks for your reply. I am wondering the future of Reactor Netty project since it's currently built on top of Netty to provide the reactive streaming. This requires nonblocking DB client. When Project Loom comes out, only tomcat needs to be adjusted, all the existing libraries can still be used. This can dramatically remove the burden of twisting the mind to program with WebFlux. I guess after Project Loom comes out, Reactor Netty will have to adjustment on top of Fiber.