RFR: 8259800: timeout in tck test testForkJoin(ForkJoinPool8Test) [v2]

[Doug Lea]

> This addresses interactions between parallelism-0 and new shutdown support in https://bugs.openjdk.java.net/browse/JDK-8259800

Doug Lea has updated the pull request incrementally with one additional commit since the last revision:

  JDK-8259800

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2661/files
  - new: https://git.openjdk.java.net/jdk/pull/2661/files/fa60b251..e0daa87a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2661&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2661&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2661.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2661/head:pull/2661

PR: https://git.openjdk.java.net/jdk/pull/2661