[jira] [Created] (ARROW-9221) ArrowBuf#setBytes(int, ByteBuffer) doesn't check the byte buffer's endianness

["David Li (Jira)" <ji...@apache.org>]

David Li created ARROW-9221:
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             Summary: ArrowBuf#setBytes(int, ByteBuffer) doesn't check the byte buffer's endianness
                 Key: ARROW-9221
                 URL: https://issues.apache.org/jira/browse/ARROW-9221
             Project: Apache Arrow
          Issue Type: Bug
          Components: Java
    Affects Versions: 0.15.1
            Reporter: David Li


[https://github.com/apache/arrow/blob/c9c5f5f2e8e8f5db4141d06b6e1841f0a55d905a/java/memory/src/main/java/org/apache/arrow/memory/ArrowBuf.java#L832]

This should check/set the buffer's endianness. This came up while debugging an issue in Flight; PutResult#fromProtocol asks Protobuf for the byte buffers that underlie a ByteString, but if the implementation is LiteralByteString, Protobuf has no buffers. So it wraps the underlying byte[], and of course the default endianness is BIG_ENDIAN.

[https://github.com/apache/arrow/blob/c9c5f5f2e8e8f5db4141d06b6e1841f0a55d905a/java/flight/flight-core/src/main/java/org/apache/arrow/flight/PutResult.java#L81]

[https://github.com/protocolbuffers/protobuf/blob/2b7b7f7f72e3617191972fbafb298cf7ec31e95e/java/core/src/main/java/com/google/protobuf/ByteString.java#L1371]



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