[GitHub] yanghua commented on issue #6703: [FLINK-9697] Provide connector for Kafka 2.0.0

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yanghua commented on issue #6703: [FLINK-9697] Provide connector for Kafka 2.0.0
URL: https://github.com/apache/flink/pull/6703#issuecomment-428465111
 
 
   @aljoscha some test cases which used kafka-server, failed with this 
exception : 
   
   ```
   java.lang.NoClassDefFoundError: org/slf4j/event/Level
   
        at kafka.utils.CoreUtils$.swallow$default$3(CoreUtils.scala:84)
        at kafka.server.KafkaServer.shutdown(KafkaServer.scala:566)
        at 
org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironmentImpl.shutdown(KafkaTestEnvironmentImpl.java:314)
        at 
org.apache.flink.streaming.connectors.kafka.KafkaTestBase.shutdownClusters(KafkaTestBase.java:174)
        at 
org.apache.flink.streaming.connectors.kafka.KafkaTestBase.shutDownServices(KafkaTestBase.java:126)
        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:50)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:33)
        at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
        at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
        at org.junit.rules.RunRules.evaluate(RunRules.java:20)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
        at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
        at 
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
        at 
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
        at 
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
        at 
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
   ```
   
   But I checked, the `slf4j-api` exists in the dependencies.

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