RFR: 8272600: (test) Use native "sleep" in Basic.java [v4]

Roger Riggs rriggs at openjdk.java.net
Fri Sep 3 14:25:53 UTC 2021

> The intermittent test in java/lang/ProcessBuilder/Basic.java has identified unexpected messages from a child Java VM
> as the cause of the test failure.  Attempts to control the output of the child VM have failed, the VM is unrepentant .
> There is no functionality in the child except to wait long enough for the test to finish and the child is destroyed.
> The fix is to switch from using a Java child to using a native child; a new executable `sleepmillis`.

Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:

  Revert to using BasicSleep on Windows
  Added diagnostic output for a test that sometimes fails on Linux when using /bin/sleep.
  Addressed review comments.


  - all: https://git.openjdk.java.net/jdk/pull/5239/files
  - new: https://git.openjdk.java.net/jdk/pull/5239/files/05d009de..2a9c33fb

 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5239&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5239&range=02-03

  Stats: 23 lines in 2 files changed: 11 ins; 3 del; 9 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5239.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5239/head:pull/5239

PR: https://git.openjdk.java.net/jdk/pull/5239

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