RFR: 8231351: Add notes for PKCS11 tests in the test doc

[Jie Fu]

I can't understand why JDK-8231338 was closed as "Cannot Reproduce" 
since it can always be reproduced on Ubuntu 18.04.2 LTS.

Reproduce on Ubuntu 18.04 is very simple:
-------------------------------------
make test TEST="jtreg:sun/security/pkcs11/Secmod/AddTrustedCert.java" 
CONF=re
-------------------------------------

In the fix of JDK-8180837, the NSS-3.35 was assumed to work with 
AddTrustedCert.java, but it failed on Ubuntu 18.04.
I wonder whether there is some other reasons which may lead to the failure.
So I filed JDK-8231338 hoping to find the root cause of the failure.

But I was disappointed since the author of JDK-8180837 just told me:
  "it's hard to say what's the problem, Linux, NSS build or others, on 
this test case."

In fact, the root cause for the failure on Ubuntu 18.04 still remains 
unknown.

Thanks a lot.
Best regards,
Jie

On 2019/9/24 下午2:01, Xuelei Fan wrote:
> I may be a little bit hesitate to add such words, "highly recommended 
> to use the latest NSS version ...", in the general TOP doc.  There are 
> a few issues that I wary about:
>
> It is not always expected that all PKCS 11 test should be run on 
> latest NSS version.  Otherwise, there might be compatibility issues 
> that we did not handle properly.  The JDK is expected to work with as 
> much NSS versions as possible, not just the latest version.  It is 
> good to know which version does not really work because of a specific 
> bug.
>
> The note should be added as close as to the place where the issue 
> happens, for maintaining and searching.  I think the best place could 
> be the test code where the failure occurs 
> (test/jdk/sun/security/pkcs11/Secmod/AddTrustedCert.java?).
>
> However, I'm still not sure if we really want this note.
>
> JDK-8231338 is reported with NSS 3.35.  Per the comment, the test 
> could pass with NSS 3.35 on Debian and Ubuntu, and the bug submitter 
> could pass the test with a proper build of NSS 3.35. And then the bug 
> was closed as "Cannot Reproduce".  I think we are done with the bug.  
> It might not be necessary to add a note any more.
>
> Just my $.02.
>
> Xuelei
>
> On 9/23/2019 9:06 PM, Jia Huang wrote:
>> Hi John Jiang,
>>
>> Thank you for your review.
>>
>> 在 2019年09月23日 20:54, sha.jiang at oracle.com 写道:
>>> In fact, PKCS11 tests have their own doc at: 
>>> test/jdk/sun/security/pkcs11/README 
>> I'm afraid most people wouldn't see 
>> test/jdk/sun/security/pkcs11/README at all.
>> So it makes very little sense to add the notes in it.
>> I still prefer doc/testing.md.
>>
>> A reference to test/jdk/sun/security/pkcs11/README had been added in 
>> [1].
>>
>> Thanks a lot.
>> Best regards,
>> Jia
>>
>> [1] http://cr.openjdk.java.net/~jiefu/8231351-huangjia/webrev.01/
>>
>>
>>