For https://github.com/jruby/jruby/issues/1214 we implemented an ISO-8859-16 Charset to align with the support for that encoding in Ruby. I would like to contribute this code to OpenJDK.

The implementation is currently in JRuby here: https://github.com/jruby/jruby/blob/master/core/src/main/java/org/jruby/util/encoding/ISO_8859_16.java

It is presently licensed the same as JRuby, either GPLv2, LGPLv2, or EPL, but I am the only author of this code and can relicense it as necessary. It's also a pretty simple piece of code mostly composed of character translation tables.

Remaining work:

* Mimic tests for other ISO encodings
* Clean up and run through OpenJDK toolchain for code style, etc