RFR: 6787: Simplified stack trace tree model [v2]

[Alex Ciminian]

On Thu, 19 Nov 2020 14:19:55 GMT, Marcus Hirt <hirt at openjdk.org> wrote:

>> Alex Ciminian has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - 6787: s/JSON/Json/ in all new files
>>  - 6787: more fixing of copyright notices
>
> application/org.openjdk.jmc.flightrecorder.flameview/src/main/java/org/openjdk/jmc/flightrecorder/flameview/FlameGraphJSONMarshaller.java line 2:
> 
>> 1: /*
>> 2:  * Copyright (c) 2020, Datadog, Inc. All rights reserved.
> 
> Per OCA, Oracle copyrights will need to be in all files, and first. See other files.

I have no idea how/why any of this works ��

> core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/stacktrace/tree/AggregatableFrame.java line 1:
> 
>> 1: /*
> 
> This one is from my graph work. I think it is fine to commit it separately here though. I can take a separate pass in my general cleanup and make it a shared class.

�� Yes, I also copied `Node` from there and changed it slightly. It would be nice to consolidate once both implementations are in.

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PR: https://git.openjdk.java.net/jmc/pull/159