RFR: 8286925: Move JSON parser used in JFR tests to test library

[Markus Grönlund]

On Wed, 18 May 2022 10:37:10 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

> Could I have a review of a change that moves the JSON parser used in JFR tests to the test library so it can be used by other tests.
> 
> Testing: test/jdk/jdk/jfr/tool
> 
> Thanks
> Erik Gahlin

Marked as reviewed by mgronlun (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8763