clean install  ??????????????
?? 2021-12-17 17:41:32??"??????" <2572805...@qq.com.INVALID> ??????
>??????????
>
>????????flink????Kafka??????????????????????????
>
>??????????
>
>[ERROR] 
>org.apache.flink.connector.kafka.source.reader.KafkaPartitionSplitReaderTest&nbsp;
> Time elapsed: 1.398 s&nbsp; <<< ERROR!
>java.lang.NoClassDefFoundError: 
>org/apache/flink/networking/NetworkFailuresProxy
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironment.createProxy(KafkaTestEnvironment.java:241)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironmentImpl.getKafkaServer(KafkaTestEnvironmentImpl.java:434)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestEnvironmentImpl.prepare(KafkaTestEnvironmentImpl.java:136)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestBase.startClusters(KafkaTestBase.java:165)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestBase.startClusters(KafkaTestBase.java:152)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestBase.prepare(KafkaTestBase.java:115)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.streaming.connectors.kafka.KafkaTestBase.prepare(KafkaTestBase.java:107)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.connector.kafka.source.testutils.KafkaSourceTestEnv.setup(KafkaSourceTestEnv.java:59)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.flink.connector.kafka.source.reader.KafkaPartitionSplitReaderTest.setup(KafkaPartitionSplitReaderTest.java:87)
>&nbsp;&nbsp; &nbsp;at 
>java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>&nbsp;&nbsp; &nbsp;at 
>java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>&nbsp;&nbsp; &nbsp;at 
>java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>&nbsp;&nbsp; &nbsp;at 
>java.base/java.lang.reflect.Method.invoke(Method.java:566)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.extension.TimeoutExtension.interceptLifecycleMethod(TimeoutExtension.java:126)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.extension.TimeoutExtension.interceptBeforeAllMethod(TimeoutExtension.java:68)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeBeforeAllMethods$11(ClassBasedTestDescriptor.java:397)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeBeforeAllMethods(ClassBasedTestDescriptor.java:395)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.before(ClassBasedTestDescriptor.java:209)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.before(ClassBasedTestDescriptor.java:80)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:148)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
>&nbsp;&nbsp; &nbsp;at 
>java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
>&nbsp;&nbsp; &nbsp;at 
>org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.execute(JUnitPlatformProvider.java:188)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:154)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:128)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:428)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:562)
>&nbsp;&nbsp; &nbsp;at 
>org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:548)
>&nbsp;&nbsp; &nbsp;Suppressed: java.lang.NullPointerException
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.apache.flink.connector.kafka.source.testutils.KafkaSourceTestEnv.tearDown(KafkaSourceTestEnv.java:65)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.apache.flink.connector.kafka.source.reader.KafkaPartitionSplitReaderTest.tearDown(KafkaPartitionSplitReaderTest.java:99)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/java.lang.reflect.Method.invoke(Method.java:566)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:725)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.extension.TimeoutExtension.interceptLifecycleMethod(TimeoutExtension.java:126)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.extension.TimeoutExtension.interceptAfterAllMethod(TimeoutExtension.java:116)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeAfterAllMethods$13(ClassBasedTestDescriptor.java:425)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeAfterAllMethods$14(ClassBasedTestDescriptor.java:423)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>java.base/java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1083)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeAfterAllMethods(ClassBasedTestDescriptor.java:423)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.after(ClassBasedTestDescriptor.java:225)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.after(ClassBasedTestDescriptor.java:80)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:161)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; at 
>org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:161)
>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ... 34 more
>Caused by: java.lang.ClassNotFoundException: 
>org.apache.flink.networking.NetworkFailuresProxy
>&nbsp;&nbsp; &nbsp;at 
>java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
>&nbsp;&nbsp; &nbsp;at 
>java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
>&nbsp;&nbsp; &nbsp;at 
>java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
>&nbsp;&nbsp; &nbsp;... 69 more
>
>????????????????????java.lang.NoClassDefFoundError: 
>org/apache/flink/networking/NetworkFailuresProxy
>??IDEA????????????????????????????
>
>
>??????????????????????????????
>
>
>????
>
>
>&nbsp;

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