[8u] RFR 8242141: New System Properties to configure the TLS signature schemes

[Martin Balao]

Hi,

I'd like to propose an 8u backport of JDK-8242141 [1].

Webrev.00:

 *
http://cr.openjdk.java.net/~mbalao/webrevs/8242141/8242141.webrev.8u.jdk.00/

The 11u backport does not apply cleanly to 8u because of the following
conflicts:

 * src/share/classes/sun/security/ssl/CertSignAlgsExtension.java
  * In 8u, JDK-8245470 [2] was applied changing the context on line 244.
This was to substitute a List::of call. Manually added shc.sslConfig
parameter and rearranged the list of parameters to look similar to 11u.

 * src/share/classes/sun/security/ssl/SSLConfiguration.java
  * In 8u there is JDK-8245417 [3] which changes the context by adding
an import. Manually added the import for JDK-8242141.

 * src/share/classes/sun/security/ssl/SignatureAlgorithmsExtension.java
  * In 8u, JDK-8245470 [2] was applied changing the context on line 410.
This was to substitute a List::of call. Manually added shc.sslConfig
parameter and rearranged the list of parameters to look similar to 11u.

No regressions found in jdk/sun/security/ssl.

Once I have a review-approval, I'll create a CSR and ask for maintainers
approval.

Thanks,
Martin.-

--
[1] - https://bugs.openjdk.java.net/browse/JDK-8242141
[2] - https://bugs.openjdk.java.net/browse/JDK-8245470
[3] - https://bugs.openjdk.java.net/browse/JDK-8245417