b83263bbe4
Summary: Uniformly use GetByteArrayRegion() instead of GetByteArrayElements() to copy bytes. In addition, it can avoid an inefficient ReleaseByteArrayElements() operation. Some benefits of GetByteArrayRegion() can be referred to: https://stackoverflow.com/a/2480493 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9380 Reviewed By: ajkr Differential Revision: D35135474 Pulled By: jay-zhuang fbshipit-source-id: a32c1774d37f2d22b9bcd105d83e0bb984b71b54