lidavidm commented on a change in pull request #9354:
URL: https://github.com/apache/arrow/pull/9354#discussion_r567429952
##########
File path:
java/flight/flight-core/src/main/java/org/apache/arrow/flight/grpc/AddWritableBuffer.java
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@@ -88,11 +87,8 @@
* @param buf The buffer to add.
* @param stream The Candidate OutputStream to add to.
* @return True if added. False if not possible.
- * @throws IOException on error
*/
- public static boolean add(ByteBuf buf, OutputStream stream) throws
IOException {
- buf.readBytes(stream, buf.readableBytes());
Review comment:
Yes - `readBytes` increments the reader index and so the subsequent
getBytes call wouldn't do anything.
https://github.com/apache/arrow/blob/6b85f6eba6d8403dbd549212fbc86f0e8ee192d0/java/flight/flight-core/src/main/java/org/apache/arrow/flight/ArrowMessage.java#L441
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