RFR(S): 8248882: SA PMap and PStack support on OSX works with core files. Enable them.

[Chris Plummer]

Ping! This one is pretty easy. I just changed the two tools to no longer 
refuse to run on OSX if we are debugging a core file, and updated the 
tests to also do a test run on a core file.

thanks,

Chris

On 7/21/20 1:13 PM, Chris Plummer wrote:
> Hello,
>
> Please help review the following:
>
> https://bugs.openjdk.java.net/browse/JDK-8248882
> http://cr.openjdk.java.net/~cjplummer/8248882/webrev.00/index.html
>
> The changes enable PMap and PStack on OSX when debugging a core file. 
> Unfortunately there appears to be no exposed way to determine if you 
> are debugging a core file, so I had to rely on clues (certain lists 
> being empty).
>
> As part of these changes I'm adding core file testing to the two 
> relevant tests. Also note that for ClhsdbPMap.java I had to tinker 
> with the list of expected libraries in the output. For core files on 
> Windows, the nio and net libraries were missing, presumably because 
> nothing had triggered their loading yet, so I removed them from the 
> expected output list, and add jli, which seems to always be there.
>
> Also a minor change in CLHSB.java. It was sending a message to 
> System.err. It makes the test output easier to read if it goes to 
> System.out.
>
> thanks,
>
> Chris