Summary: Fix some javac warnings in java2d related code for the Warning Cleanup Day.
Reviewed-by: prr, flar

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

Reviewed-by: prr

Reviewed-by: xdono

6775317: Improve performance of non-AA transformed rectangles and single wide lines in software pipelines
Reviewed-by: jgodinez, prr

Reviewed-by: darcy, weijun

Summary: Introduce a new Interface to mark the Loops based pipes and initialise the loops accordingly.
Reviewed-by: flar, rkennke