add jruby build

foreman.gemspec

@@ -18,4 +18,9 @@ Gem::Specification.new do |gem|
 
   gem.add_dependency 'term-ansicolor', '~> 1.0.7'
   gem.add_dependency 'thor',           '>= 0.13.6'
+
+  if RUBY_PLATFORM == "java" || ENV["JRUBY"]
+    gem.add_dependency "spoon", "~> 0.0.1"
+    gem.platform = Gem::Platform.new("java")
+  end
 end