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https://issues.apache.org/jira/browse/KAFKA-1198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13860804#comment-13860804
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Guozhang Wang commented on KAFKA-1198:
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I tried the following with the current trunk HEAD and did not hit the Exception:
1. start ZK
2. start one broker
3. bin/kafka-topics.sh --zookeeper localhost:2181 --describe returns empty.
4. create a topic
5. bin/kafka-topics.sh --zookeeper localhost:2181 --list returns the topic
6. bin/kafka-topics.sh --zookeeper localhost:2181 --describe returns the
description of the topic.
> NullPointerException in describe topic
> --------------------------------------
>
> Key: KAFKA-1198
> URL: https://issues.apache.org/jira/browse/KAFKA-1198
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8.1
> Reporter: Jun Rao
>
> If topic is not specified, we get the following.
> bin/kafka-topics.sh --zookeeper localhost:2181 --describe
> (Error while executing topic command,java.lang.NullPointerException)
> Also, list topic seems to always list all topics even when topics are
> specified.
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