#1933 remove use of sun.misc.Unsafe

[robfrank]

What does this PR do?

removes the use sun.mis.Unsafe

Motivation

Unsafe will be removed

Related issues

#1933

Checklist

• I have run the build using mvn clean package command
• My unit tests cover both failure and success scenarios

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.07%	✅ 90.91%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (128627c)	68351	43989	64.36%
Head commit (2530f6a)	68337 (-14)	44027 (+38)	64.43% (+0.07%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1934)	11	10	90.91%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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