Package Javax Comm -

It can be notoriously difficult to configure, often requiring precise placement of javax.comm.properties . It has known limitations with 64-bit Windows and is not truly cross-platform without bundling separate native libraries for each target system.

It is not part of the standard JDK, requiring manual installation of comm.jar and platform-specific native libraries ( .dll or .so files). Package Javax Comm

While it was once a stable and flexible solution for Java-to-hardware communication, javax.comm should be avoided for new projects . It is extremely difficult to set up on modern systems, and superior, actively maintained libraries are readily available. It can be notoriously difficult to configure, often

(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 While it was once a stable and flexible