8165687: Fix license and copyright headers in jd9 under hotspot/test
Summary: Legal notices and Oracle copyrights were updated (white and blank space, commas) in tests files for uniformity to meet Oracle requirements.
Reviewed-by: dholmes, iris
Contributed-by: Stanislav Smirnov <stanislav.smirnov@oracle.com>, Vassili Igouchkine <vassili.igouchkine@oracle.com>

8161696: [TESTBUG] runtime/StackGuardPages/testme.sh uses invalid argument -Xss328k
Summary: changed argument from 328k to 1M
Reviewed-by: dcubed, fparain, dholmes

8144278: [TESTBUG] hotspot/runtime/StackGuardPages/testme.sh should use native library build support
Reviewed-by: erikj, dsamersoff, dholmes