Integrated: 8271356: Modify jdb to treat an empty command as a repeat of the previous command

[Jakob Cornell]

On Sat, 28 Aug 2021 05:48:47 GMT, Jakob Cornell <duke at openjdk.java.net> wrote:

> This has been under discussion on and off for the past month or so on serviceability-dev, and I think a CSR request is required, so this may be a work in progress.
> 
> Notes on the patch:
> 
> - The `list` command previously marked a line in each listing with `=>`.  In a bare `list` this is the next line up for execution.  Previously when requesting a specific location (e.g. `list 5`) the requested line would be marked.  With the patch applied, `list` will only ever mark the next line up for execution.  This is consistent with the behavior of GDB and PDB (at least).
> - `EOF` is printed when the repeat setting is on and a bare `list` command follows a listing containing the last source line.  This feature is from PDB; it's a somewhat softer message than the one for an explicit `list` request that's out of range.
> - I don't speak Chinese or Japanese, so I've omitted localizations for the new messages in those locales.  However, I updated the help text in both to include the new commands, with the descriptions left empty for now.

This pull request has now been integrated.

Changeset: fe6a2020
Author:    Jakob Cornell <jakob+gpg at jcornell.net>
Committer: Chris Plummer <cjplummer at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/fe6a2020873fe1eb8d4236dc1db3008f485f3195
Stats:     560 lines in 10 files changed: 517 ins; 6 del; 37 mod

8271356: Modify jdb to treat an empty command as a repeat of the previous command

Reviewed-by: cjplummer, iklam

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PR: https://git.openjdk.java.net/jdk/pull/5290