Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.8.3 darwin/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"

What did you do?

I attempted to register, net/rpc Register, a type which contains some public methods that should be exposed as RPC methods, and some methods that are public but shouldn't be exposed as RPC methods. According to the net/rpc documentation...

    Only methods that satisfy these criteria will be made available for
    remote access; other methods will be ignored:

        - the method's type is exported.
        - the method is exported.
        - the method has two arguments, both exported (or builtin) types.
        - the method's second argument is a pointer.
        - the method has return type error.

... a public method that has only one argument should be ignored, but instead an error message is printed when such a method is encountered. Please see this example which reproduces the behaviour.

What did you expect to see?

Nothing should be printed.

What did you see instead?

From the go playground example above
2009/11/10 23:00:00 method ShouldNotBeExposedByRPC has wrong number of ins: 2

Suggested solution

In net/rpc/server.go:262 the function suitableMethods is called with reportErr=true, this eventually causes the printout, see net/rpc/server.go:298. If methods don't satisfy the criteria for exposure they should be ignored as the documentation says.