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https://issues.apache.org/jira/browse/KAFKA-13665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17943752#comment-17943752
]
Divya commented on KAFKA-13665:
-------------------------------
Hi, I'd like to work on this issue. Could you please assign it to me?
> Null pointer exception testPollReturnsNoRecords
> -----------------------------------------------
>
> Key: KAFKA-13665
> URL: https://issues.apache.org/jira/browse/KAFKA-13665
> Project: Kafka
> Issue Type: Test
> Reporter: Alyssa Huang
> Priority: Major
>
> Seeing java.lang.NullPointerException from testPollReturnsNoRecords[0] –
> org.apache.kafka.connect.runtime.WorkerSourceTaskTest.
> https://ci-builds.apache.org/blue/organizations/jenkins/Kafka%2Fkafka-pr/detail/PR-11732/2/tests/
> {code:java}
> [2022-02-11 00:17:58,495] INFO Kafka startTimeMs: 1644538678494
> (org.apache.kafka.common.utils.AppInfoParser:121)[2022-02-11 00:17:58,495]
> WARN Error registering AppInfo mbean
> (org.apache.kafka.common.utils.AppInfoParser:68)javax.management.InstanceAlreadyExistsException:
> kafka.connect:type=app-info,id=noop-worker at
> com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> at
> org.apache.kafka.common.utils.AppInfoParser.registerAppInfo(AppInfoParser.java:64)
> at
> org.apache.kafka.connect.runtime.ConnectMetrics.<init>(ConnectMetrics.java:99)
> at
> org.apache.kafka.connect.runtime.errors.RetryWithToleranceOperatorTest.<clinit>(RetryWithToleranceOperatorTest.java:93)
> at java.lang.Class.forName0(Native Method) at
> java.lang.Class.forName(Class.java:264) at
> javassist.runtime.Desc.getClassObject(Desc.java:72) at
> javassist.runtime.Desc.getClazz(Desc.java:81) at
> org.apache.kafka.connect.runtime.WorkerSourceTaskTest.createWorkerTask(WorkerSourceTaskTest.java:240)
> at
> org.apache.kafka.connect.runtime.WorkerSourceTaskTest.testHeadersWithCustomConverter(WorkerSourceTaskTest.java:1001)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498) at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at
> org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
> at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) at
> org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) at
> org.junit.runners.ParentRunner.run(ParentRunner.java:413) at
> org.junit.runners.Suite.runChild(Suite.java:128) at
> org.junit.runners.Suite.runChild(Suite.java:27) at
> org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) at
> org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at
> org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) at
> org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at
> org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) at
> org.junit.runners.ParentRunner$3.eval...[truncated 3038049 chars]...
> ssl.cipher.suites = null ssl.client.auth = none ssl.enabled.protocols
> = [TLSv1.2] ssl.endpoint.identification.algorithm = https
> ssl.engine.factory.class = null ssl.key.password = null
> ssl.keymanager.algorithm = SunX509 ssl.keystore.certificate.chain = null
> ssl.keystore.key = null ssl.keystore.location = null
> ssl.keystore.password = null ssl.keystore.type = JKS ssl.protocol =
> TLSv1.2 ssl.provider = null ssl.secure.random.implementation = null
> ssl.trustmanager.algorithm = PKIX ssl.truststore.certificates = null
> ssl.truststore.location = null ssl.truststore.password = null
> ssl.truststore.type = JKS task.shutdown.graceful.timeout.ms = 5000
> topic.creation.enable = true topic.tracking.allow.reset = true
> topic.tracking.enable = true value.converter = class
> org.apache.kafka.connect.runtime.isolation.PluginsTest$TestConverter
> (org.apache.kafka.connect.runtime.isolation.PluginsTest$TestableWorkerConfig:376)[2022-02-11
> 00:19:28,370] WARN Variables cannot be used in the 'plugin.path' property,
> since the property is used by plugin scanning before the config providers
> that replace the variables are initialized. The raw value 'null' was used for
> plugin scanning, as opposed to the transformed value 'null', and this may
> cause unexpected results.
> (org.apache.kafka.connect.runtime.WorkerConfig:334)[2022-02-11 00:19:28,372]
> DEBUG Registering Connect metrics with JMX for worker
> 'errors-all-tolerate-worker'
> (org.apache.kafka.connect.runtime.ConnectMetrics:98)[2022-02-11 00:19:28,372]
> INFO Kafka version: 3.2.0-SNAPSHOT
> (org.apache.kafka.common.utils.AppInfoParser:119) {code}
>
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