Fix wrong class

pitr-ch · pitr-ch · commit 52c08fca13cc · 2021-06-05T14:18:52.000+02:00
diff --git a/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb b/lib/concurrent-ruby/concurrent/synchronization/mutex_lockable_object.rb
@@ -69,7 +69,7 @@ def initialize(*defaults)
 
       def initialize_copy(other)
         super
-        @__Lock__      = ::Mutex.new
+        @__Lock__      = ::Monitor.new
         @__Condition__ = @__Lock__.new_cond
       end
 
