This program fails to find the equivalent JID in the 
hash keys:

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require 'jabber4r/jabber4r'

sJid = "uname@host/res"
hash = {}

jid1 = Jabber::JID.new(sJid)
jid2 = Jabber::JID.new(sJid)

hash[jid1] = "Hello World"

puts "jid1 #{hash[jid1]}"
puts "jid2 #{hash[jid2]}"

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Should print:
jid1 Hello World
jid2 Hello World

Does print 
jid1 Hello World
jid2