1 files changed, 8 insertions, 0 deletions
diff --git a/spec/ruby/core/module/initialize_copy_spec.rb b/spec/ruby/core/module/initialize_copy_spec.rb
index 412f1c511b..7ae48f85a9 100644
--- a/spec/ruby/core/module/initialize_copy_spec.rb
+++ b/spec/ruby/core/module/initialize_copy_spec.rb
@@ -7,4 +7,12 @@ describe "Module#initialize_copy" do
     end
     mod.dup.methods(false).should == [:hello]
   end
+
+  # jruby/jruby#5245, https://bugs.ruby-lang.org/issues/3461
+  it "should produce a duped module with inspectable class methods" do
+    mod = Module.new
+    def mod.hello
+    end
+    mod.dup.method(:hello).inspect.should =~ /Module.*hello/
+  end
 end