8181761: add explicit @build actions for jdk.test.lib classes in all :tier2 tests
Reviewed-by: alanb

8180805: move RandomFactory to the top level testlibrary
Reviewed-by: bpb, rriggs

8149920: Remove intermittent key from jdk_core tests
Reviewed-by: darcy

8080711: Prepare sun/nio/cs/FindEncoderBugs.java to find intermittent failures
Reviewed-by: rriggs

8078334: Mark regression tests using randomness
Reviewed-by: xuelei, alanb

6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

6843578: Re-implement IBM doublebyte charsets
6639450: IBM949C encoder modifies state of IBM949 encoder
6569191: Cp943 io converter returns U+0000 and U+FFFD for unconvertable character
6577466: Character encoder IBM970 throws a BufferOverflowException
5065777: CharsetEncoder canEncode() methods often incorrectly return false
Summary: Re-write 11 IBM doublebyte charsets. Thanks Ulf.Zibis for the codereview!
Reviewed-by: martin

6636323: Optimize handling of builtin charsets
6636319: Encoders should implement isLegalReplacement(byte[] repl)
Summary: optimized new String(byte[], cs/csn) and String.getBytes(cs/csn) for speed and memory consumption in singlebyte case.
Reviewed-by: alanb

6675856: Open charset tests
Summary: Moved non-confidiential test cased from closed repo to open repo
Reviewed-by: martin