Javax Comm — Package
(like jSerialComm) if you are starting a new project. What is your current goal with javax.comm ? Opening up new ports to Java with javax.comm - InfoWorld
The de facto standard replacement for many years was RXTX (e.g., org.rxtx:rxtxcomm ), but it is also considered old. Modern Java serial communication is typically handled via modern, maintained libraries like jSerialComm or jSSC (Java Simple Serial Connector). Package Javax Comm
Uses a Java event model to detect changes in signal lines (e.g., carrier detect). Review & Status (As of 2026) (like jSerialComm) if you are starting a new project