RFR: JDK-8297523 : Various GetPrimitiveArrayCritical miss result - NULL check

[Matthias Baesken]

There are still a few places where GetPrimitiveArrayCritical calls miss the result check. This should be adjusted.
A similar case was recently adjusted here : https://bugs.openjdk.org/browse/JDK-8297480

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Commit messages:
 - JDK-8297523

Changes: https://git.openjdk.org/jdk/pull/11361/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11361&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297523
  Stats: 45 lines in 7 files changed: 22 ins; 5 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/11361.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11361/head:pull/11361

PR: https://git.openjdk.org/jdk/pull/11361