jmx-dev RFR: 8354407: Test com/sun/management/OperatingSystemMXBean/GetProcessCpuLoad.java still fails on Windows [v2]

[Kevin Walls]

> This is hard to reproduce, and at first I'd only seen -1 returned on the first calls to mbean.getProcessCpuLoad().
> But eventually I observed a -1 at any time, including in middle of the iterations, or on the last iteration which makes the current test fail.
> 
> Should fail on Windows only if we only ever see -1 returned from getProcessCpuLoad().
> Remove the "exclusiveAccess.dirs=." (JDK-8353231 adding "exclusiveAccess.dirs=." did not fix this.)

Kevin Walls has updated the pull request incrementally with one additional commit since the last revision:

  No need to check ex at end,  when failing

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24961/files
  - new: https://git.openjdk.org/jdk/pull/24961/files/70cd88c3..d28b4c90

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24961&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24961&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24961.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24961/head:pull/24961

PR: https://git.openjdk.org/jdk/pull/24961