As of Servlet 6.1, the `ServletInputStream` and `ServletOutputStream`
offer read and write variants based on `ByteBuffer` instead of byte
arrays. This can improve performance and avoid memory copy for I/O
calls.
This was already partially supported for some servers like Tomcat
through specific adapters. This commit moves this support to the
standard `ServletHttpHandlerAdapter` and makes it available for all
Servlet 6.1+ containers.
Closes gh-33748
3b65506c13