Shenjiaqi commented on code in PR #20860:
URL: https://github.com/apache/flink/pull/20860#discussion_r990617300
##########
flink-runtime/src/main/java/org/apache/flink/runtime/state/memory/ByteStreamStateHandle.java:
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@@ -148,7 +148,7 @@ public int read(byte[] b, int off, int len) throws
IOException {
index += bytesToCopy;
return bytesToCopy;
} else {
- return -1;
+ return len == 0 ? 0 : -1;
Review Comment:
Since ByteStateHandleInputStream is only used in
ByteStreamStateHandle#openInputStream, so I think influence of this change is
limited.
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