[jira] [Commented] (KAFKA-4883) invalid client sasl.jaas.config triggers NullPointerException

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-4883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16432440#comment-16432440 ] 

ASF GitHub Bot commented on KAFKA-4883:
---------------------------------------

omkreddy opened a new pull request #4849: KAFKA-4883: handle NullPointerException while parsing login modue control flag
URL: https://github.com/apache/kafka/pull/4849
 
 
   

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> invalid client sasl.jaas.config triggers NullPointerException
> -------------------------------------------------------------
>
>                 Key: KAFKA-4883
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4883
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.10.2.0
>            Reporter: Xavier Léauté
>            Priority: Minor
>
> Using an invalid sasl.jaas.config property causes a NullPointerException to be thrown, which makes it difficult to understand the root of the problem.
> Example of an invalid config
> {code}
> sasl.jaas.config=KafkaClient {\n\
>   org.apache.kafka.common.security.plain.PlainLoginModule required\n\
>   username="xxxxx"\n\
>   password="XXXX";\n\
> }
> {code}
> Resulting stack trace:
> {code}
> org.apache.kafka.common.KafkaException: Failed to construct kafka producer
> 	at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:342)
> 	at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:166)
> [...]
> Caused by: org.apache.kafka.common.KafkaException: java.lang.NullPointerException
> 	at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:94)
> 	at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:93)
> 	at org.apache.kafka.common.network.ChannelBuilders.clientChannelBuilder(ChannelBuilders.java:51)
> 	at org.apache.kafka.clients.ClientUtils.createChannelBuilder(ClientUtils.java:84)
> 	at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:305)
> 	... 41 more
> Caused by: java.lang.NullPointerException
> 	at org.apache.kafka.common.security.JaasConfig.loginModuleControlFlag(JaasConfig.java:87)
> 	at org.apache.kafka.common.security.JaasConfig.parseAppConfigurationEntry(JaasConfig.java:110)
> 	at org.apache.kafka.common.security.JaasConfig.<init>(JaasConfig.java:65)
> 	at org.apache.kafka.common.security.JaasUtils.jaasConfig(JaasUtils.java:59)
> 	at org.apache.kafka.common.network.SaslChannelBuilder.configure(SaslChannelBuilder.java:85)
> 	... 45 more
> {code}



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