module Concurrent::ThreadSafe::Util

def self.make_synchronized_on_truffleruby(klass)
  klass.superclass.instance_methods(false).each do |method|
    klass.class_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{method}(*args, &block)    
        TruffleRuby.synchronized(self) { super(*args, &block) }
      end
    RUBY
  end
end