The solution provided for JDK-6509045 and JDK-8067757 becomes inadequate if documentation inheritance depth > 1 and {@inheritDoc} expands to multiple @throws tags on the higher levels of the inheritance hierarchy.
The solution fails because the code that processes {@inheritDoc} in that case does not have necessary context to complete its job. While every @throws tag that a particular {@inheritDoc} expands to, translates to a separate entry in the "Throws:" section, by the time such an {@inheritDoc} is processed, the "Throws:" section is unavailable.
One solution is to process {@inheritDoc} deeply and collectively in ThrowsTaglet#getAllBlockTagOutput. This hijacks the model of context-free processing, however, it does so just for one specific tag: @throws.