Integrated: 8256156: JFR: Allow 'jfr' tool to show metadata without a recording

[Yi Yang]

On Tue, 29 Dec 2020 07:44:36 GMT, Yi Yang <yyang at openjdk.org> wrote:

> Hi all,
> 
> May I please have a review for this minor patch?
> 
> It simplifies the use of subcommand `metadata` of jfr tool. Recording 
> file is no longer mandatory, users can directly use `jfr metadata` to 
> output JDK builtin meta information. As JDK-8256156 mentioned, it also 
> supports events and categories filters:
> $ jfr metadata 
> $ jfr metadata recording.jfr # compatible
> $ jfr metadata --events jdk.ThreadStart,jdk.ThreadEnd
> $ jfr metadata --events jdk.ThreadStart,jdk.ThreadEnd recording.jfr
> $ jfr metadata --categories GC,Detailed
> $ jfr metadata --categories GC,Detailed recording.jfr

This pull request has now been integrated.

Changeset: 86e4c755
Author:    Yi Yang <yyang at openjdk.org>
Committer: Erik Gahlin <egahlin at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/86e4c755
Stats:     478 lines in 5 files changed: 345 ins; 115 del; 18 mod

8256156: JFR: Allow 'jfr' tool to show metadata without a recording

Reviewed-by: egahlin

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PR: https://git.openjdk.java.net/jdk/pull/1904