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: chegar, dholmes, mduigou

Reviewed-by: okutsu

Reviewed-by: okutsu, smarks

Summary: to use new InternalError constructor with cause chainning
Reviewed-by: alanb, ksrini, xuelei, neugens
Contributed-by: sebastian.sickelmann@gmx.de

Reviewed-by: dholmes

Reviewed-by: alanb, darcy, naoto

Reviewed-by: xdono

Reviewed-by: okutsu

Reviewed-by: darcy, weijun

Summary: Added sun.util.logging.PlatformLogger for JRE implementation to log messages.
Reviewed-by: alanb, naoto