Integrated: 8074101: Add verification that all tasks are actually claimed during roots processing

[Albert Mingkun Yang]

On Tue, 12 Jan 2021 11:13:29 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> The first commit removes some obsolete enum items, while the second commit adds the verification logic. Commit 2 introduces some "empty" task claims for the verification logic, explicitly marked in the comments.
> 
> Test: hotspot_gc

This pull request has now been integrated.

Changeset: e93f08e2
Author:    Albert Mingkun Yang <ayang at openjdk.org>
Committer: Thomas Schatzl <tschatzl at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/e93f08e2
Stats:     95 lines in 8 files changed: 51 ins; 22 del; 22 mod

8074101: Add verification that all tasks are actually claimed during roots processing

Reviewed-by: kbarrett, tschatzl

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PR: https://git.openjdk.java.net/jdk/pull/2046