RFR: 8350007: Add usage message to the javadoc executable [v4]

Nizar Benalla nbenalla at openjdk.org
Wed Feb 26 21:29:30 UTC 2025


> This patch adds a new message when you run the `javadoc` executable with any arguments.
> Currently, unlike most other tools, running `javadoc` without any arguments does not show you how to use the tool or point you to use the `--help` option, this can be improved.
> 
> Before change:
> 
> W $ ./javadoc
> error: No modules, packages or classes specified.
> 1 error
> 
> 
> After change:
> 
> W $ ./javadoc
> Usage:
>     javadoc [options] [packagenames] [sourcefiles] [@files]
> For additional help on usage:           javadoc --help

Nizar Benalla has updated the pull request incrementally with two additional commits since the last revision:

 - update test
 - keep the same return value and write to STDERR

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/23618/files
  - new: https://git.openjdk.org/jdk/pull/23618/files/3d83cbd5..d67e033b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23618&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23618&range=02-03

  Stats: 5 lines in 2 files changed: 1 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/23618.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23618/head:pull/23618

PR: https://git.openjdk.org/jdk/pull/23618


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