This is an HTTP server example used to do "Hello World" benchmarks. A "Hello World" benchmark is a good benchmark to
analyze library overheads as the application code does not do much.
This server is not representative of the otherwise normal
HelloWorldServer which is much simpler. This
example instead does micro-optimizations like using
HttpServerResponse.flushOnlyOnReadComplete(), setting
the content-length header and storing the response content stream, etc. These optimizations reduce the overheads that
are usually not significant for applications that do any "real work".