[8u] RFR 8234728: Some security tests should support TLSv1.3

[Martin Balao]

Hi,

I'd like to request a review for the 8u backport of JDK-8234728 [1].

Webrev.00:

 *
http://cr.openjdk.java.net/~mbalao/webrevs/8234728/8234728.webrev.8u.jdk.00/

11u patch applies cleanly but the following changes were needed for
tests to work in 8u:

 * test/javax/net/ssl/sanity/ciphersuites/SystemPropCipherSuitesOrder.java
 * test/sun/security/ssl/HandshakeHash/HandshakeHashCloneExhaustion.java
  * The 8u backport of SunJSSE does not currently enable TLSv1.3 on the
client by default. Enable it for the tests (as done with multiple other
TLSv1.3 tests backported to 8u before).

 * test/sun/security/ssl/HandshakeHash/DigestBase.java
  * See an explanation of this change here [2].

No regressions found in tests affected by this patch. Risk for this
patch is low as only tests are affected.

Note:
test/javax/net/ssl/sanity/ciphersuites/SystemPropCipherSuitesOrder.java
introduced by this patch raises an error because it has the '@ignore'
label. This label is removed by a followup patch that I intend to
backport to 8u. See JDK-8235874 [3].

Thanks,
Martin.-

--
[1] - https://bugs.openjdk.java.net/browse/JDK-8234728
[2] -
https://mail.openjdk.java.net/pipermail/jdk8u-dev/2021-January/013350.html
[3] - https://bugs.openjdk.java.net/browse/JDK-8235874