MINOR: Preserve ByteBuffer order in little-endian reads - #3702
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fallintoplace wants to merge 1 commit into
Open
MINOR: Preserve ByteBuffer order in little-endian reads#3702fallintoplace wants to merge 1 commit into
fallintoplace wants to merge 1 commit into
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Rationale for this change
ByteBufferBackedBinary.get2BytesLittleEndian()currently changes the byte order of its backingByteBufferto little endian. Because the buffer can be caller-owned, reading the binary can unexpectedly affect subsequent reads through the original buffer.What changes are included in this PR?
Read the short through a duplicate buffer so the original buffer order remains unchanged.
Are these changes tested?
Yes. The regression test verifies the returned value and preserves the original big-endian order for heap, direct, and read-only buffers. The complete
TestBinaryclass and Spotless check pass.Are there any user-facing changes?
Calling
get2BytesLittleEndian()no longer changes the order of the caller-owned backing buffer.