[8u] TLSv1.3 RFR: 8245472: Backport JDK-8038893 for TLSv1.3

[Martin Balao]

Hi Alexey,

Thanks for your feedback. We want 8038893 to be backported to JDK-8. I
cannot comment more on the reasons at this time, though.

Comments on v1:

 * java/net/SocketPermission.java
  * My understanding is that we bump the copyright date to the one in
the backported patch if newer than the one in the actual file.

 * sun/security/util/HostnameChecker.java
  * Shouldn't "SSLLogger.isOn" be "SSLLogger.isOn && SSLLogger.isOn("ssl")"?
  * Things being logged do not look for a "fine" level to me, as they
are errors on the certificate DNS name. In 8038893, these messages were
sent to "System.err". What do you think?

Regards,
Martin.-