Reviewed-by: chegar

Summary: Clean up doclint errors and warnings in classes in java.util
Reviewed-by: darcy, chegar
Contributed-by: NBrian Burkhalter <brian.burkhalter@oracle.com>

Reviewed-by: alanb, dholmes, mduigou, psandoz, smarks
Contributed-by: NAkhil Arora &lt;akhil.arora@oracle.com&gt;, Arne Siegel &lt;v.a.ammodytes@googlemail.com&gt;, Brian Goetz <brian.goetz@oracle.com>

Reviewed-by: mduigou, alanb, chegar, darcy
Contributed-by: NPaul Sandoz &lt;paul.sandoz@oracle.com&gt;, Brian Goetz &lt;brian.goetz@oracle.com&gt;, Doug Lea <dl@cs.oswego.edu>

Reviewed-by: chegar, ksrini

6546713: link the word (optional) in exception specifications to the text which provides explanation and context.
Reviewed-by: dholmes, dl

Reviewed-by: xdono

Reviewed-by: darcy, weijun

Reviewed-by: dholmes, martin