RFR: 8266576: dynamicArchive/ParallelLambdaLoadTest.java crashes in tier2 testing

[Yumin Qi]

Hi, Please review

  In dynamic dump, the lambda invoker holder classes are regenerated in DynamicArchive::dump, which is after shutdown hook executed. The returned objects from the regeneration may contain invalid contents which caused crash like in this bug. It is late to execute java code, the fix is to move the call into MetaspaceShared::link_and_cleanup_shared_classes which is before shutdown hook, before halt.
  JDK-8266585 and JDK-8266594 failed in different patterns, could be the same reason.

  Tests: tier1,tier2

Thanks
Yumin

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Commit messages:
 - 8266576: dynamicArchive/ParallelLambdaLoadTest.java crashes in tier2 testing

Changes: https://git.openjdk.java.net/jdk/pull/3910/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3910&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266576
  Stats: 14 lines in 2 files changed: 9 ins; 5 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3910.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3910/head:pull/3910

PR: https://git.openjdk.java.net/jdk/pull/3910