git: openjdk/jdk: 8256156: JFR: Allow 'jfr' tool to show metadata without a recording

[Erik Gahlin]

Changeset: 86e4c755
Author:    Yi Yang <yyang at openjdk.org>
Committer: Erik Gahlin <egahlin at openjdk.org>
Date:      2021-03-13 02:03:07 +0000
URL:       https://git.openjdk.java.net/jdk/commit/86e4c755

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

Reviewed-by: egahlin

! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Command.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Main.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Metadata.java
! src/jdk.jfr/share/classes/jdk/jfr/internal/tool/Print.java
! test/jdk/jdk/jfr/tool/TestMetadata.java