scudellari commented on a change in pull request #17227:
URL: https://github.com/apache/flink/pull/17227#discussion_r705698738
##########
File path: flink-core/src/main/java/org/apache/flink/util/NetUtils.java
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@@ -116,6 +119,39 @@ private static URL validateHostPortString(String hostPort)
{
}
}
+ /**
+ * Calls {@link ServerSocket#accept()} on the provided server socket,
suppressing any thrown
+ * {@link SocketTimeoutException}s. This is a workaround for the
underlying JDK-8237858 bug in
+ * JDK 11 that can cause errant SocketTimeoutExceptions to be thrown at
unexpected times.
+ *
+ * <p>This method expects the provided ServerSocket has no timeout set
(SO_TIMEOUT of 0),
+ * indicating an infinite timeout. It will suppress all
SocketTimeoutExceptions, even if a
+ * ServerSocket with a non-zero timeout is passed in.
+ *
+ * @param serverSocket a ServerSocket with {@link SocketOptions#SO_TIMEOUT
SO_TIMEOUT} set to 0;
+ * if SO_TIMEOUT is greater than 0, then this method will suppress
SocketTimeoutException;
Review comment:
Sounds good
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