Accidentally I may forget to describe some parameters or exception throwing (or something else) when documenting methods or classes, etc.
Is it possible to run javadoc in such a way that it warns me about missing documentation items?
(I use ant script for generating documentation)
Use Checkstyle! It has awesome Ant integration and supports 100s of other important checks to your source code too.
The JavadocType checker is what you’ll need though.