Override Module private Method in Ruby/JRuby

class_including_module.rb

class ClassIncludingModule
  include OverrideMe

  do_something
end

class_including_module_with_override.rb

class ClassIncludingModuleWithOverride
  include OverrideMe

  do_something

  def please_override 
      puts "I likey what you do"
  end
end

class_including_override_module.rb

class ClassIncludingOverrideModule
  include OverrideMe
  include FixMe

  do_something

end

fix_me.rb

module FixMe
  def self.included(cls)
    cls.extend ClassMethods
  end

  # A collection of class methods that generate helper methods that are mixed into a calling class.
  module ClassMethods

    private

    def please_override 
      puts "I likey what you do"
    end
  end
end

override_me.rb

module OverrideMe
  def self.included(cls)
    cls.extend ClassMethods
  end

  # A collection of class methods that generate helper methods that are mixed into a calling class.
  module ClassMethods

    def do_something
      please_override
    end

    private

    def please_override 
      puts "I no likey what you do"
    end
  end
end

terminal output.txt

irb(main):001:0> module OverrideMe
irb(main):002:1>   def self.included(cls)
irb(main):003:2>     cls.extend ClassMethods
irb(main):004:2>   end
irb(main):005:1>
< of class methods that generate helper methods that are mixed into a calling class.
irb(main):007:1*   module ClassMethods
irb(main):008:2>
irb(main):009:2*     def do_something
irb(main):010:3>       please_override
irb(main):011:3>     end
irb(main):012:2>
irb(main):013:2*     private
irb(main):014:2>
irb(main):015:2*     def please_override
irb(main):016:3>       puts "I no likey what you do"
irb(main):017:3>     end
irb(main):018:2>   end
irb(main):019:1> end
=> nil
irb(main):020:0> class ClassIncludingModule
irb(main):021:1>   include OverrideMe
irb(main):022:1>
irb(main):023:1*   do_something
irb(main):024:1> end
I no likey what you do
=> nil
irb(main):025:0> class ClassIncludingModuleWithOverride
irb(main):026:1>   include OverrideMe
irb(main):027:1>
irb(main):028:1*   do_something
irb(main):029:1>
irb(main):030:1*   def please_override
irb(main):031:2>       puts "I likey what you do"
irb(main):032:2>   end
irb(main):033:1> end
I no likey what you do
=> nil
irb(main):034:0>
....
irb(main):101:0> module FixMe
irb(main):102:1>   def self.included(cls)
irb(main):103:2>     cls.extend ClassMethods
irb(main):104:2>   end
irb(main):105:1>
< of class methods that generate helper methods that are mixed into a calling class.
irb(main):107:1*   module ClassMethods
irb(main):108:2>
irb(main):109:2*     private
irb(main):110:2>
irb(main):111:2*     def please_override
irb(main):112:3>       puts "I likey what you do"
irb(main):113:3>     end
irb(main):114:2>   end
irb(main):115:1> end
=> nil
irb(main):116:0> class ClassIncludingOverrideModule
irb(main):117:1>   include OverrideMe
irb(main):118:1>   include FixMe
irb(main):119:1>
irb(main):120:1*   do_something
irb(main):121:1>
irb(main):122:1* end
I likey what you do
=> nil