Integrated: 8274261: Use enhanced-for instead of plain 'for' in jdk.jcmd

[Andrey Turbanov]

On Fri, 24 Sep 2021 07:30:02 GMT, Andrey Turbanov <duke at openjdk.java.net> wrote:

> There are few places in code where manual `for` loop is used with Iterator to iterate over Collection or Array.
> Instead of manual `for` cycles it's preferred to use enhanced-for cycle instead: it's less verbose, makes code easier to read and it's less error-prone.
> It doesn't have any performance impact: javac compiler generates similar code when compiling enhanced-for cycle.
> 
> One strange thing I also noticed is static field `sun.tools.jstat.Parser#reservedWords`, which filled in `Parser` constructor. Reworked to initialize it once.

This pull request has now been integrated.

Changeset: 20f3872d
Author:    Andrey Turbanov <turbanoff at gmail.com>
Committer: Serguei Spitsyn <sspitsyn at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/20f3872d1cd6257ab9c76bb998f8dc2d07bc1724
Stats:     44 lines in 6 files changed: 0 ins; 14 del; 30 mod

8274261: Use enhanced-for instead of plain 'for' in jdk.jcmd

Reviewed-by: sspitsyn, cjplummer

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PR: https://git.openjdk.java.net/jdk/pull/5673