Error in @CompileStatic when method in both Interface and Superclass

This seems related to GROOVY-6751.

This file:

import javafx.collections.FXCollections
import groovy.transform.CompileStatic

@CompileStatic
class DupMethod
{
  javafx.collections.ObservableList<String> tags = FXCollections.observableArrayList("first")

  void foo()
  {
    tags.addAll("foo")
  }
}

gives the compilation error:
$ groovyc dupmethod.groovy
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
dupmethod.groovy: 11: [Static type checking] - Reference to method is ambiguous. Cannot choose between [boolean java.util.Collection <T>#addAll(T[]), boolean javafx.collections.ObservableList <E extends java.lang.Object>#addAll(E[])]
@ line 11, column 5.
tags.addAll("foo")
^

1 error

I don't get this error when compiling with Groovy version 2.2.2.