diff --git a/mrblib/jruby_opts_parser.rb b/mrblib/jruby_opts_parser.rb
index 1bc1979..089cc29 100644
--- a/mrblib/jruby_opts_parser.rb
+++ b/mrblib/jruby_opts_parser.rb
@@ -2,6 +2,8 @@ class JRubyOptsParser
 
   def self.parse!(opts)
     p = new(opts)
+    # raise ArgumentError.new("Invalid CLI Options") unless p.valid?
+    p
   end
 
   attr_reader :ruby_opts
@@ -108,7 +110,7 @@ def parse(opts)
       elsif opt == "--sample"
         @java_opts << "-Xprof"
       elsif opt == "--1.8"
-        puts "warning: --1.8 ignored"
+       puts "warning: --1.8 ignored"
       elsif opt == "--1.9"
         puts "warning: --1.9 ignored"
       elsif opt == "--2.0"