RFR(S): 8241033: Create test library utility for getting JFR streaming repository

[mikhailo.seledtsov at oracle.com]

Erik, Markus,

   Thank you for review. I have pushed the change.


Misha

On 3/16/20 4:50 PM, mikhailo.seledtsov at oracle.com wrote:
> Please review this change that introduces a test library utility for 
> obtaining a JFR streaming repository.
> Several tests use this functionality, and each implement their own 
> methods. This change unifies the functionality, and also
> improves it including added diagnostics.
>
>     JBS: https://bugs.openjdk.java.net/browse/JDK-8241033
>     Webrev: http://cr.openjdk.java.net/~mseledtsov/8241033.02/
>     Testing:
>        Ran open/test/jdk/jdk/jfr/api/consumer/streaming/
>            PASS
>
>
> Thank you,
> Misha
>