RFR: [11u] JDK-8236039: JSSE Client does not accept status_request extension in CertificateRequest messages for TLS 1.3

[Andrew John Hughes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8236039
Webrev: https://cr.openjdk.java.net/~andrew/openjdk11/8236039/webrev.01/

TLS 1.3 allows the status_request extension, but, as the JSSE provider
does not currently support it, it throws an exception. It should instead
simply ignore the extension.

Backporting this fix will increase compatibility with TLS 1.3 clients.

Patch nearly applies cleanly, with the exception of the copyright header
having been previously updated in 15u, but not 11u:

 @@ -1,5 +1,5 @@
  /*
-- * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights
reserved.
+- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 + * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights
reserved.

Ok for 11.0.7?

Thanks,
-- 
Andrew :)

Senior Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

PGP Key: ed25519/0xCFDA0F9B35964222 (hkp://keys.gnupg.net)
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