jruby · Mar 17, 2015 · Mar 17, 2015
diff --git a/spec/truffle/tags/core/random/new_seed_tags.txt b/spec/truffle/tags/core/random/new_seed_tags.txt
diff --git a/truffle/src/main/ruby/core.rb b/truffle/src/main/ruby/core.rb
@@ -74,7 +74,6 @@
 require_relative 'core/rubinius/common/time'
 require_relative 'core/rubinius/common/true'
 require_relative 'core/rubinius/common/random'
-require_relative 'core/rubinius/common/thread'
 
 require_relative 'core/rubinius/common/rational'
 require_relative 'core/rubinius/common/rationalizer'

diff --git a/truffle/src/main/ruby/core/rubinius/api/kernel/common/thread.rb b/truffle/src/main/ruby/core/rubinius/api/kernel/common/thread.rb
@@ -41,6 +41,10 @@ class Thread
   # recurse back to :foo, it could require making
   # the tables independant.
 
+  def randomizer
+    @randomizer ||= Rubinius::Randomizer.new
+  end
+
   def self.recursion_guard(obj)
     id = obj.object_id
     objects = current.recursive_objects

diff --git a/truffle/src/main/ruby/core/rubinius/common/kernel.rb b/truffle/src/main/ruby/core/rubinius/common/kernel.rb
@@ -134,4 +134,13 @@ def warn(*messages)
   end
   module_function :warn
 
+  def srand(seed=undefined)
+    if undefined.equal? seed
+      seed = Thread.current.randomizer.generate_seed
+    end
+    seed = Rubinius::Type.coerce_to seed, Integer, :to_int
+    Thread.current.randomizer.swap_seed seed
+  end
+  module_function :srand
+
 end
diff --git a/truffle/src/main/ruby/core/rubinius/common/thread.rb b/truffle/src/main/ruby/core/rubinius/common/thread.rb