RFR: 8314186: runtime/8176717/TestInheritFD.java failed with "Log file was leaked" [v3]

[Johan Sjölen]

> Hi,
> 
> This PR intends to make the test a bit more sturdy by looking for both the success string and the failure string, reporting that the test messed up if neither are found. I also removed the extra newline at the end of the file and did some special reporting in case of a `TimeoutException`.
> 
> Thanks!

Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:

  Check the instance of the CompletionException

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/17325/files
  - new: https://git.openjdk.org/jdk/pull/17325/files/f1ae2575..e50eaf5d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17325&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17325&range=01-02

  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17325.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17325/head:pull/17325

PR: https://git.openjdk.org/jdk/pull/17325