8081347: Add @modules to jdk_core testsReviewed-by: alanb, joehw, lanceaContributed-by: alexander.kulyakhtin@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com
8027026: Change keytool -genkeypair to use -keyalg RSAReviewed-by: alanb, chegar, mullan
8021788: JarInputStream doesn't provide certificates for some file under META-INFReviewed-by: chegar, sherman