Reviewed-by: chegar, ksrini

Summary: Minor code changes to cleanup warnings in java.util.*
Reviewed-by: mduigou, naoto, smarks
Contributed-by: NRemi Forax <forax@univ-mlv.fr>

Reviewed-by: dholmes, mduigou
Contributed-by: NSean Zhou &lt;zhouyx@linux.vnet.ibm.com&gt;, Ulf Zibis &lt;ulf.zibis@gmx.de&gt;, David Holmes <david.holmes@oracle.com>

Reviewed-by: xdono

Reviewed-by: chegar, dholmes

Reviewed-by: darcy, weijun

Summary: Write overflow-conscious array resizing code
Reviewed-by: chegar