def java_property(property:, value:, sort: true, parents:[])
  parents += [property]
  if value.is_a? Hash
    value = Hash[ value.sort_by { |k,v| k.to_s } ] if sort

    value.each do |prop,val|
      java_property(property: prop, value: val, sort: sort, parents: parents)
    end
  else
    puts "#{parents.join('.')}=#{value.inspect}"
  end
end

class Hash
  def to_java_properties(sort: true)
    self.each { |property,value| java_property(property: property, value: value, sort: sort) }
  end
end

{
  foo: {
    some: {
      option: 'value',
      property: 4
    },
    'another.property': {
      option: 'qwer,asdf'
    }
  }
}.each { |property,value| java_property(property: property, value: value) }