RFR: JDK-8290126: Add a check in JavadocTester for "javadoc should not crash" [v2]

Thu Jul 21 18:30:05 UTC 2022

> Please review a simple update to `JavadocTester` to provide a default-on check that no stack traces were written to the STDERR stream.
> 
> There are also some minor cleanup edits suggested by the IDE.

Jonathan Gibbons has updated the pull request incrementally with one additional commit since the last revision:

  Respond to review feedback; add new test

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/9458/files
  - new: https://git.openjdk.org/jdk/pull/9458/files/7cd05a1f..2a970211

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9458&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9458&range=00-01

  Stats: 130 lines in 5 files changed: 124 ins; 1 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/9458.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9458/head:pull/9458

PR: https://git.openjdk.org/jdk/pull/9458