8163984: Fix license and copyright headers in jdk9 under test/libReviewed-by: dholmesContributed-by: Stanislav Smirnov <stanislav.smirnov@oracle.com>
8157957: ClassNotFoundException: jdk.test.lib.JDKToolFinderReviewed-by: coleenp, gtriantafill, mseledtsov, iignatyev, dholmes, dsamersoff