RFR: 8257966: Instrument test/jdk/java/nio/channels/spi/SelectorProvider/inheritedChannel/StateTestService.java [v2]

[Michael McMahon]

> Could I get the following small (temporary) test change reviewed please?
> 
> It adds some printlns to a file from a process launched by the inetd/launch simulator in the regression tests.
> Normal stderr, stdout is not available in that context.
> 
> Thanks,
> Michael.

Michael McMahon has updated the pull request incrementally with two additional commits since the last revision:

 - updated and working, ready for review again
 - intermediate non functioning state

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1714/files
  - new: https://git.openjdk.java.net/jdk/pull/1714/files/90866ef0..342796b1

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1714&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1714&range=00-01

  Stats: 29 lines in 4 files changed: 13 ins; 1 del; 15 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1714.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1714/head:pull/1714

PR: https://git.openjdk.java.net/jdk/pull/1714