RFR: 8278312: Update SimpleSSLContext keystore to use SANs for localhost IP addresses

[Daniel Fuchs]

On Mon, 6 Dec 2021 21:27:48 GMT, Michael McMahon <michaelm at openjdk.org> wrote:

> This updates the testkeys keystore file used by SimpleSSLContext in the test tree, in order to add subject alt names for the literal IP addresses "127.0.0.1" and "::1". This should allow the self signed certificate in the keystore to be accepted even when the local OS doesn't have a localhost to loopback address name service mapping.
> 
> Apart from the test, there's nothing to see in the webrev as it's a binary file. Here is the relevant diff between the list output from the old and new keystores
> 
> 24c24,31
> < #1: ObjectId: 2.5.29.14 Criticality=false
> ---
>> #1: ObjectId: 2.5.29.17 Criticality=true
>> SubjectAlternativeName [
>>   DNSName: localhost
>>   IPAddress: 127.0.0.1
>>   IPAddress: 0:0:0:0:0:0:0:1
>> ]
>>

test/jdk/com/sun/net/httpserver/SANTest.java line 77:

> 75:             int port1 = s1.getAddress().getPort();
> 76:             int port2 = s2.getAddress().getPort();
> 77:             test ("127.0.0.1", root+"/test1", port2, "smallfile.txt", 23);

Maybe this test should use `IPSupport::hasIPv4` and `IPSupport::hasIPv6` to figure out which addresses can be tested on a particular machine.

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PR: https://git.openjdk.java.net/jdk/pull/6727