dongjoon-hyun commented on code in PR #46506:
URL: https://github.com/apache/spark/pull/46506#discussion_r1595626768
##########
common/network-common/src/main/java/org/apache/spark/network/client/TransportClientFactory.java:
##########
@@ -169,8 +169,10 @@ public TransportClient createClient(String remoteHost, int
remotePort, boolean f
// this code was able to update things.
TransportChannelHandler handler = cachedClient.getChannel().pipeline()
.get(TransportChannelHandler.class);
- synchronized (handler) {
Review Comment:
Your error message doesn't match with code. Maybe, it came from your own
fork?
```
Caused by: java.lang.NullPointerException
at
org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:178)
```
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