Index: lib/net/http.rb
===================================================================
--- lib/net/http.rb	(revision 33299)
+++ lib/net/http.rb	(working copy)
@@ -586,6 +586,7 @@ module Net   #:nodoc:
       @debug_output = nil
       @use_ssl = false
       @ssl_context = nil
+      @ssl_session = nil
       @enable_post_connection_check = true
       @compression = nil
       @sspi_enabled = false
@@ -771,9 +772,14 @@ module Net   #:nodoc:
             ssl_parameters[name] = value
           end
         end
-        @ssl_context = OpenSSL::SSL::SSLContext.new
-        @ssl_context.set_params(ssl_parameters)
+
+        unless @ssl_context then
+          @ssl_context = OpenSSL::SSL::SSLContext.new
+          @ssl_context.set_params(ssl_parameters)
+        end
+
         s = OpenSSL::SSL::SSLSocket.new(s, @ssl_context)
+        s.session = @ssl_session if @ssl_session
         s.sync_close = true
       end
       @socket = BufferedIO.new(s)
@@ -800,6 +806,7 @@ module Net   #:nodoc:
           if @ssl_context.verify_mode != OpenSSL::SSL::VERIFY_NONE
             s.post_connection_check(@address)
           end
+          @ssl_session = s.session
         rescue => exception
           D "Conn close because of connect error #{exception}"
           @socket.close if @socket and not @socket.closed?
Index: test/net/http/test_https.rb
===================================================================
--- test/net/http/test_https.rb	(revision 33299)
+++ test/net/http/test_https.rb	(working copy)
@@ -59,6 +59,29 @@ class TestNetHTTPS < Test::Unit::TestCas
     skip $!
   end
 
+  def test_session_reuse
+    http = Net::HTTP.new("localhost", config("port"))
+    http.use_ssl = true
+    http.verify_callback = Proc.new do |preverify_ok, store_ctx|
+      store_ctx.current_cert.to_der == config('ssl_certificate').to_der
+    end
+
+    http.start
+    http.get("/")
+    http.finish
+
+    http.start
+    http.get("/")
+    http.finish # three times due to possible bug in OpenSSL 0.9.8
+
+    http.start
+    http.get("/")
+
+    socket = http.instance_variable_get(:@socket).io
+
+    assert socket.session_reused?
+  end
+
   if ENV["RUBY_OPENSSL_TEST_ALL"]
     def test_verify
       http = Net::HTTP.new("ssl.netlab.jp", 443)