[jira] [Created] (KAFKA-7495) AdminClient thread dies on invalid input

[JIRA]

Xavier Léauté created KAFKA-7495:
------------------------------------

             Summary: AdminClient thread dies on invalid input
                 Key: KAFKA-7495
                 URL: https://issues.apache.org/jira/browse/KAFKA-7495
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 2.0.0
            Reporter: Xavier Léauté


The following code results in an uncaught IllegalArgumentException in the admin 
client thread, resulting in a zombie admin client.

{code}
AclBindingFilter aclFilter = new AclBindingFilter(
    new ResourcePatternFilter(ResourceType.UNKNOWN, null, PatternType.ANY),
    AccessControlEntryFilter.ANY
);
kafkaAdminClient.describeAcls(aclFilter).values().get();
{code}

See the resulting stacktrace below
{code}
ERROR [kafka-admin-client-thread | adminclient-3] Uncaught exception in thread 
'kafka-admin-client-thread | adminclient-3': 
(org.apache.kafka.common.utils.KafkaThread)
java.lang.IllegalArgumentException: Filter contain UNKNOWN elements
    at 
org.apache.kafka.common.requests.DescribeAclsRequest.validate(DescribeAclsRequest.java:140)
    at 
org.apache.kafka.common.requests.DescribeAclsRequest.<init>(DescribeAclsRequest.java:92)
    at 
org.apache.kafka.common.requests.DescribeAclsRequest$Builder.build(DescribeAclsRequest.java:77)
    at 
org.apache.kafka.common.requests.DescribeAclsRequest$Builder.build(DescribeAclsRequest.java:67)
    at org.apache.kafka.clients.NetworkClient.doSend(NetworkClient.java:450)
    at org.apache.kafka.clients.NetworkClient.send(NetworkClient.java:411)
    at 
org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.sendEligibleCalls(KafkaAdminClient.java:910)
    at 
org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1107)
    at java.base/java.lang.Thread.run(Thread.java:844)
{code}



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