@Rest doesn't encode all parameters #1677

When using a @Rest interface with a method that takes URL parameters, such as:

@Get("/search/keyword/{keyword}/mode/{mode}")
public SearchResponse search(String keyword, String mode);

Using any characters that are considered safe for use in URLs, such as / and &, these characters will not be encoded. For example, search("any/key", "alpha") will result in the following URL:

/search/keyword/any/key/mode/alpha

Which obviously will result in an error, because now the parameters are "any" and "mode". Expected behaviour: the URL parameters are escaped, like this:

/search/keyword/any%2Fkey/mode/alpha

Encoding the parameter in my own code doesn't solve this issue, because %2F wil be encoded in to %252F. Changing the input from String to android.net.Uri or java.net.URI to prevent encoding also doesn't make any difference. Using the Spring RestTemplate, you could just pass an UriTemplate to prevent encoding, but that doesn't seem to be possible here.

Is it possible to either force it to encode everything in the parameter, as I'd expect, or force it not to encode anything, so that the user would have to encode it?

Using AA 3.3.2 and Spring Android REST template 2.0.0M3