Summary: update StringBuilder & StringBuffer to consistently handle forwarding to AbstractStringBuilder. Some additional cleanup (removal of refs to sub-classes from AbstractStringBuilder)
Reviewed-by: chegar, alanb, mduigou

Reviewed-by: coffeys

Summary: add usage note to AbstractStringBuilder ensureCapacity()
Reviewed-by: mduigou, dholmes, chegar

Reviewed-by: alanb

Reviewed-by: xdono

6992121: StringBuilder.ensureCapacity(int minCap) throws OutOfMemoryError with minCap=Integer.MIN_VALUE
Reviewed-by: dholmes, alanb

Summary: let arraycopy throw AIOOBE for invalid negative length
Reviewed-by: chegar, forax

Summary: Move isBmpCodePoint from sun.nio.cs.Surrogate to Character
Reviewed-by: sherman
Contributed-by: NUlf Zibis <ulf.zibis@gmx.de>

Reviewed-by: darcy, weijun

Summary: make sure to grow with size => size * 2 + 2
Reviewed-by: dholmes, chegar, ohair

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

Summary: Update for files that have been modified starting July 2008
Reviewed-by: ohair, tbell

Summary: Major spec rework
Reviewed-by: alanb