Incorrect Javadoc presentation for {@return } with a nested tag

[nlisker]

As an example, the javadoc of Objects#notNull:

    /**
     * {@return {@code true} if the provided reference is non-{@code null};
     * {@code false} otherwise}
     * ...
     */ 

The period is placed in the wrong place, there's an extra } at the end, and the @return description is missing. The hover popup has the same issue.