jmx-dev Integrated: 8373441: Remove DCmdFactory::_enabled

[Ioi Lam]

On Fri, 12 Dec 2025 14:54:52 GMT, Ioi Lam <iklam at openjdk.org> wrote:

> The `DCmdFactory::_enabled` is always set to `true` and there doesn't seem to be a reason to set it to `false`.
> 
> This PR removes this field and simplified the creation of `DCmdFactory` objects.
> 
> The related `_hidden` field is also currently not used, but may be used in the future when deprecating DCmds, so we leave it unchanged.
> 
> Note that now `jmm_GetDiagnosticCommandInfo()` always set `dcmdInfo::enabled` to `true` to be compatible with Java code.

This pull request has now been integrated.

Changeset: 3f077102
Author:    Ioi Lam <iklam at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/3f07710270dbe7268f21828dff20e2eb810b1e70
Stats:     102 lines in 7 files changed: 4 ins; 25 del; 73 mod

8373441: Remove DCmdFactory::_enabled

Reviewed-by: kevinw, fparain, jsjolen

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PR: https://git.openjdk.org/jdk/pull/28794