Optimize JacksonPersister#hydrateFromBytes

[schlosna]

General

Before this PR:

Similar to #6739 , in AtlasDB heavy services deserializing values persisted as JSON via JacksonPersister can allocate significant (~135GB/s) java.nio.HeapByteBuffer. See FasterXML/jackson-core#1081 and FasterXML/jackson-benchmarks#9 for more details as we've improved this upstream in Jackson 2.16; however, we should mitigate these allocations until we 2.16 is released and we upgrade.

After this PR:

==COMMIT_MSG==
Optimize to avoid allocation of heap ByteBuffer via InputStreamReader. Remove after upgrade to Jackson 2.16.

see: FasterXML/jackson-core#1081 and FasterXML/jackson-benchmarks#9
==COMMIT_MSG==

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Please tag any other people who should be aware of this PR:
@jeremyk-91
@sverma30
@raiju

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Type

• Feature
• Improvement
• Fix
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• Deprecation
• Manual task
• Migration

Description

Optimize to avoid allocation of heap ByteBuffer via InputStreamReader. Remove after upgrade to Jackson 2.16.

see: FasterXML/jackson-core#1081 and FasterXML/jackson-benchmarks#9

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[jeremyk-91]

👍 Fair enough, this is faithful to the change made in https://github.com/FasterXML/jackson-core/pull/1081/files. Thanks!

[svc-autorelease]

Released 0.937.0

[schlosna]

👍 Fair enough, this is faithful to the change made in https://github.com/FasterXML/jackson-core/pull/1081/files. Thanks!

After Jackson 2.16 is released and we bump, I'll put up a PR to remove the couple places we worked around this.