RFR: 8326953: Possible race in creation of win-exports.def

[Magnus Ihse Bursie]

We have seen a build failure along the lines of:

 /usr/bin/mv: cannot move '.../build/windows-x64-open-debug/hotspot/variant-server/libjvm/win-exports.def.tmp' to '.../build/windows-x64-open-debug/hotspot/variant-server/libjvm/win-exports.def': No such file or directory

on Windows.

My guess is that this is a race between creating the win-export.def file for the gtest jvm and the product jvm.

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Commit messages:
 - 8326953: Possible race in creation of win-exports.def

Changes: https://git.openjdk.org/jdk/pull/18043/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18043&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326953
  Stats: 23 lines in 2 files changed: 15 ins; 1 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/18043.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18043/head:pull/18043

PR: https://git.openjdk.org/jdk/pull/18043