How to make Net::SSH work with Jruby on Windows

Net::SFTP works like a charm in Jruby on Linux. However, when I tested my application in Windows, I ran into a fail "to load -- dl/import ssh" error and then into "IOError (The system cannot find the path specified)". To work around the errors, I had to make some changes to the Net::SSH code to make it work. There are 2 files you need to change gems\net-ssh-2.0.4\lib\net\ssh\known_hosts.rb and gems\net-ssh-2.0.4\lib\net\ssh\authentication\pageant.rb.

For known_hosts.rb change the add(host, key) method located at the end of file to read like this:

# Tries to append an entry to the current source file for the given host
    # and key. If it is unable to (because the file is not writable, for
    # instance), an exception will be raised.
    def add(host, key)
      begin #jpt
        File.open(source, "a") do |file|
          blob = [Net::SSH::Buffer.from(:key, key).to_s].pack("m*").gsub(/\s/, "")
          file.puts "#{host} #{key.ssh_type} #{blob}"
        end
      rescue
#Note that I am just ignoring the error
        puts $!.to_s #just print error msg and goes into its merry way
      end
    end

For pageant.rb just clear everything so it looks something like this:

#require 'dl/import'
#require 'dl/struct'

require 'net/ssh/errors'

module Net; module SSH; module Authentication

  # This module encapsulates the implementation of a socket factory that
  # uses the PuTTY "pageant" utility to obtain information about SSH
  # identities.
  #
  # This code is a slightly modified version of the original implementation
  # by Guillaume Marçais (guillaume.marcais@free.fr). It is used and
  # relicensed by permission.
  module Pageant

    # From Putty pageant.c
    AGENT_MAX_MSGLEN = 8192
    AGENT_COPYDATA_ID = 0x804e50ba
    
    # The definition of the Windows methods and data structures used in
    # communicating with the pageant process.
    module Win
    end

    # This is the pseudo-socket implementation that mimics the interface of
    # a socket, translating each request into a Windows messaging call to
    # the pageant daemon. This allows pageant support to be implemented
    # simply by replacing the socket factory used by the Agent class.
    class Socket

    end

  end

end; end; end