WARNING: Multiple beans are eligible for injection to the injection point

When I use:
import org.jboss.seam.international.status.Messages;
@Inject
private Messages messages;

it says that I have "Multiple beans are eligible for injection to the injection point"
if I click at Inject holding CTRL, and asks for those eligible beans, it shows that both the Messages interface and the MessagesImpl are eligible to
this injection. It shouldn't show the interface as an eligible bean.

(did'nt know if I should open another issue, but I guess it's ok to post as one issue.)
AND when using:

import org.slf4j.Logger;
@Inject
Logger log;

it says that I have "Multiple beans are eligible for injection to the injection point"
if I click at Inject holding CTRL, and asks for those eligible beans, it shows a duplicate entry for @Produces Logger.produceLog();

Actually, they are not duplicate, there are 2 methods in two different jars, but they both produces the same bean, both weld-logger.jar and weld-extensions have this producer method.