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>

8157957: ClassNotFoundException: jdk.test.lib.JDKToolFinder
Reviewed-by: coleenp, gtriantafill, mseledtsov, iignatyev, dholmes, dsamersoff

8154258: [TESTBUG] Various serviceability tests fail compilation
Summary: Replace sun.misc.Unsafe with jdk.internal.misc.Unsafe
Reviewed-by: chegar, kvn

8066821: Enhance command line processing to manage deprecating and obsoleting -XX command line arguments
Summary: Add support for alias options and automatically expiring deprecated options
Reviewed-by: dholmes, kbarrett, acorn
Contributed-by: derek.white@oracle.com

8067013: Rename the com.oracle.java.testlibary package
Reviewed-by: dholmes, gtriantafill, sla
Contributed-by: alexander.kulyakhtin@oracle.com

8073989: Deprecated integer options are considered as invalid instead of deprecated in Java 9
Summary: Deprecated integer options are now recognized as being deprecated.
Reviewed-by: dholmes, hseigel, ddmitriev

8075586: Add @modules as needed to the open hotspot tests
Reviewed-by: sla, ctornqvi, lfoltan, mchung, alanb
Contributed-by: alexander.kulyakhtin@oracle.com

8060449: Obsolete command line flags accept arbitrary appendix
Summary: Proper error messages for newly obsolete command line flags.
Reviewed-by: lfoltan, dcubed, coleenp
Contributed-by: max.ockner@oracle.com