[news.eclipse.tools.jdt] JDT watchpoints are surprising

["Don Porges" <dporges@xxxxxxxxxxxxxxx>]

Do I understand correctly that a JDT "watchpoint" applies to every instance 
of the asked-for field name within a given class, and not only the exact 
object that the user clicks on in the variable window?  If so, this seems 
like it would almost never be useful.  (And it should be explained in the 
docs, since I've never heard of a "watchpoint" that does that, and I expect 
others will be confused as well.)

Relatedly, can anything useful be done (in any context) with the "id" that I 
see that every object is given, beyond writing it down and thus getting a 
clue that two things are the same object, or not?