Unsafe.{get,put}-X-Unaligned; Efficient array comparison intrinsics

[Andrew Haley]

I've tried to so everything I've been asked.  If this version passes
muster with everyone I'll Javadoc all the public methods and fields
and put it up for RFA next week.

I guess it's going to need a lot of testing and security analysis.

I added versions of all {put,get} methods with the boolean bigEndian
argument.  This makes HeapByteBuffer much cleaner, and it does not
need to know the machine endianness at all.  I hope that's OK.

Andrew.


http://cr.openjdk.java.net/~aph/unaligned.hotspot.4/
http://cr.openjdk.java.net/~aph/unaligned.jdk.4/