RFR: 8371749: New test serviceability/jvmti/events/VMDeath/AllocatingInVMDeath/TestAllocatingInVMDeath.java fails with -Xcheck:jni

[Leonid Mesnik]

Please review following fix that adds jni exception check after calling java code. 

Tested by running test with and without -Xcheck:jni.

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Commit messages:
 - 8371749: New test serviceability/jvmti/events/VMDeath/AllocatingInVMDeath/TestAllocatingInVMDeath.java fails with -Xcheck:jni

Changes: https://git.openjdk.org/jdk/pull/28280/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28280&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8371749
  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28280.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28280/head:pull/28280

PR: https://git.openjdk.org/jdk/pull/28280