Consider the following snippet:

/**
 * {@link Inner#nonExistentMethod}
 */
public abstract class Outer {

    private Outer() { }

    /**
     * This method belongs to {@code Outer} but somehow can be referenced
     * through {@code Inner#nonExistentMethod}
     */
    public static void nonExistentMethod() { }

    interface Inner { }
}

javadoc produces documentation that actually contains a clickable (and working) link to "Outer.nonExistentMethod", though it has been referred to as "Inner#nonExistentMethod".