[jira] [Resolved] (KAFKA-14270) Kafka Streams logs exception on startup

["Bruno Cadonna (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-14270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bruno Cadonna resolved KAFKA-14270.
-----------------------------------
    Resolution: Fixed

> Kafka Streams logs exception on startup
> ---------------------------------------
>
>                 Key: KAFKA-14270
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14270
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 3.3.0
>            Reporter: Oliver Eikemeier
>            Assignee: Oliver Eikemeier
>            Priority: Minor
>             Fix For: 3.4.0
>
>
> Kafka Streams expects a version resource at /kafka/kafka-streams-version.properties. It is read by {{{}ClientMetrics{}}}, initialised by
> [https://github.com/apache/kafka/blob/3.3.0/streams/src/main/java/org/apache/kafka/streams/KafkaStreams.java#L894]
> When the resource is not found,
> [https://github.com/apache/kafka/blob/3.3.0/streams/src/main/java/org/apache/kafka/streams/internals/metrics/ClientMetrics.java#L55]
> logs a warning at startup:
> org.apache.kafka.streams.internals.metrics.ClientMetrics <clinit> WARN: Error while loading kafka-streams-version.properties
> java.lang.NullPointerException: inStream parameter is null
> 	at java.base/java.util.Objects.requireNonNull(Objects.java:233)
> 	at java.base/java.util.Properties.load(Properties.java:407)
> 	at org.apache.kafka.streams.internals.metrics.ClientMetrics.<clinit>(ClientMetrics.java:53)
> 	at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:894)
> 	at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:856)
> 	at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:826)
> 	at org.apache.kafka.streams.KafkaStreams.<init>(KafkaStreams.java:738)



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