RFR: 8252412: [macos11] system dynamic libraries removed from filesystem [v2]

[Jiangli Zhou]

On Fri, 22 Jan 2021 22:16:28 GMT, Jiangli Zhou <jiangli at openjdk.org> wrote:

>> The directory structure is intact - only the file is removed from the filesystem.
>> More generally, for many frameworks, where there used to be
>> 
>> 
>> the file is gone, but 
>> 
>> 
>> remains.
>> 
>> I don't think we need a jtreg test, since any functionality associated with PCSC is broken on this platform.  I added label noreg-other
>
> Ok, I see Java_sun_security_smartcardio_PlatformPCSC_initialize does dlopen using the 'jLibName' (string) obtained from getLibraryName() and throws IOException if dlopen fails. The change seems safe enough.
> 
> I'm wondering if you want to check the file first then check the parent directory if the file does not exist. Not sure if that's a little more optimal on older macos, so I'll leave that to you to decide.
> 
> For the jtreg test, how about converting Dominik's TestPCSC? As the file is a shared for 'unix' platforms, it feels safer at least with some level of unit test. Could you please give some more contexts about the functionalities associated with PCSC are broken on macos?

Martin and I had an off-line chat and Martin convinced me that the existing jtreg tests (such as test/jdk/javax/smartcardio and test/jdk/sun/security/smartcardio are sufficient) to cover the case.

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PR: https://git.openjdk.java.net/jdk/pull/2119