https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
package org.jruby.runtime.encoding;

import org.jcodings.Encoding;

public interface EncodingCapable {
    Encoding getEncoding();
    void setEncoding(Encoding e);
}