class KPM::BaseInstaller

def warn_if_jruby_jar_missing(bundles_dir)
  platform_dir = bundles_dir.join('platform')
  jruby_jar = platform_dir.join('jruby.jar')
  if !File.exists?(jruby_jar)
    @logger.warn("  Missing installation for jruby.jar under #{platform_dir}. This is required for ruby plugin installation");
  else
    version = extract_jruby_jar_version(jruby_jar)
    if version
      @logger.info("  Detected jruby.jar version #{version}")
    else
      @logger.warn("  Failed to detect jruby.jar version for #{jruby_jar}");
    end
  end
end