[ https://issues.apache.org/jira/browse/KAFKA-14314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mickael Maison resolved KAFKA-14314. ------------------------------------ Fix Version/s: 3.4.0 Resolution: Fixed > MirrorSourceConnector throwing NPE during `isCycle` check > --------------------------------------------------------- > > Key: KAFKA-14314 > URL: https://issues.apache.org/jira/browse/KAFKA-14314 > Project: Kafka > Issue Type: Bug > Components: mirrormaker > Affects Versions: 3.3.1 > Reporter: John Krupka > Assignee: John Krupka > Priority: Blocker > Fix For: 3.4.0 > > > We are using MirrorMaker to replicate topics across clusters in AWS. As the > process is starting up, we are getting a NullPointerException when > MirrorSourceConnector is calling `isCycle`. > Retrieving the `upstreamTopic` on [this line of > code|https://github.com/apache/kafka/blob/cc582897bfb237572131369a598f7869220b43dc/connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorSourceConnector.java#L497] > is returning null, which causes the NPE on the next line. -- This message was sent by Atlassian Jira (v8.20.10#820010)