don't raise NoMethodError the tried method doesn't exists

activesupport/lib/active_support/core_ext/object/try.rb

@@ -28,6 +28,8 @@ class Object
   def try(*a, &b)
     if a.empty? && block_given?
       yield self
+    elsif !a.empty? && !respond_to?(a.first)
+      nil
     else
       __send__(*a, &b)
     end

activesupport/test/core_ext/object_and_class_ext_test.rb

@@ -99,7 +99,7 @@ class ObjectTryTest < Test::Unit::TestCase
   def test_nonexisting_method
     method = :undefined_method
     assert !@string.respond_to?(method)
-    assert_raise(NoMethodError) { @string.try(method) }
+    assert_nil @string.try(method)
   end
 
   def test_valid_method