Jep321 on Devops Monkhttps://devops-monk.com/tags/jep321/Recent content in Jep321 on Devops MonkHugoen-usMon, 04 May 2026 00:00:00 +0000HTTP Client API (JEP 321): HTTP/2, Async, and Authenticationhttps://devops-monk.com/tutorials/java11/http-client-api/Mon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java11/http-client-api/Why a New HTTP Client? HttpURLConnection — Java’s HTTP API since Java 1.1 — has deep design problems: Mutable shared state makes it error-prone in multithreaded code No built-in HTTP/2 support No built-in async; non-blocking requires manual thread management Clunky API: setDoOutput(true), getOutputStream(), connect() in sequence No support for reactive streams JEP 321 (Java 11) standardised the HTTP Client API that was incubating since Java 9. The new API lives in java.