#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

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

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: -6.17%	:white_check_mark: ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (7800b8706e1dfe12d0167dc7e561f34ac1240c6e)	69934	44795	64.05%
Head commit (bc5db5a562cbde7beb7e83e78fc1f8c6772fe7dd)	15755 (-54179)	9120 (-35675)	57.89% (-6.17%)

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)	0	0	∅ (not applicable)

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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[lvca]

It looks good to me!