Our @KafkaListener annotated method throws an NPE in its consume() method, but the logs omit the stacktrace of the java.lang.NullPointerException. I do not understand why this is the case.

Testing locally by manually throwing an NPE in the method’s body I get a proper stacktrace. The logging configuration (included below) has nothing special in it.

org.springframework.kafka.KafkaException: Seek to current after exception
    at org.springframework.kafka.listener.SeekUtils.seekOrRecover(SeekUtils.java:208)
    at org.springframework.kafka.listener.DefaultErrorHandler.handleRemaining(DefaultErrorHandler.java:168)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.invokeErrorHandler(KafkaMessageListenerContainer.java:2924)
[...]
    at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: org.springframework.kafka.listener.ListenerExecutionFailedException: Listener method 'public void de.suedleasing.slc.posteingang.benutzer.BenutzerListener.consume(de.suedleasing.slc.posteingang.benutzer.BenutzerChangeEvent,java.lang.Integer,java.lang.Long,org.apache.kafka.clients.consumer.Consumer<java.lang.String, java.lang.String>)' threw exception
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.decorateException(KafkaMessageListenerContainer.java:2957)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.doInvokeOnMessage(KafkaMessageListenerContainer.java:2902)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.invokeOnMessage(KafkaMessageListenerContainer.java:2866)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.lambda$doInvokeRecordListener$55(KafkaMessageListenerContainer.java:2783)
    ... 10 more
    Suppressed: org.springframework.kafka.listener.ListenerExecutionFailedException: Restored Stack Trace
        at org.springframework.kafka.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:391)
        at org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage(RecordMessagingMessageListenerAdapter.java:92)
        at org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage(RecordMessagingMessageListenerAdapter.java:53)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.doInvokeOnMessage(KafkaMessageListenerContainer.java:2888)
Caused by: java.lang.NullPointerException

Logging config:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
    <include resource="co/elastic/logging/logback/boot/ecs-console-appender.xml" />
    <root level="INFO">
        <appender-ref ref="ECS_JSON_CONSOLE"/>
    </root>
</configuration>