javax.comm 3.0 has replace javax.comm 2.0:
Sun is no longer offering the 2.0 release of javax.comm, since 3.0 Update1
contains important bug fixes allowing to better support it..
javax.comm 3.x offers new conveniences for the the user, as well as
improvements to the portmapping architecture and support for our
Sun Ray thin client platform, with no change to the core API or functionality.
Among the features available with javax.comm 3.0 is an interactive serial
port tool, which is helpful in basic diagnosis of serial port connectivity.
Javax.comm for Windows have been EOLed:
A Windows port of javax.comm is not currently offered by Sun. There has
not been sufficient demand to justify supporting javax.comm on Windows,
particularly considering that javax.comm for Windows is available from
other sources, such as
http://www.rxtx.org. The Windows build of javax.comm previously posted on Sun's Software
Download Center was finally pulled because support has not been offered
for years, nor has the code been built or tested for that long. Further, the
JVM the Windows port was built on was long ago EOLed, and, finally , here
were reportedly incompatible change in the Windows platform itself.
Java Community Process:
As with any Java extension API, the community is free to implement it on
any platform and make it available along with the proper disclaimers.
Certification of a platform port is available for most javax extension APIs
through the Java Community Process (
http://www.jcp.org) by passing a
compatability
test, among other things, but since javax.comm was created
prior to the Java Community Process, certification may not be a tennable
option and probably won't be an issue for most users.
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