【Flink】 java.lang.NoClassDefFoundError: scala/runtime/java8/JFunction1$mcVI$

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最新推荐文章于 2024-08-09 23:59:56 发布

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分类专栏：错误文章标签： flink

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在尝试运行一段代码时遇到了`java.lang.BootstrapMethodError`，问题源于Flink依赖的Scala版本（2.11）与编译代码所使用的Scala版本（2.12）不一致。为避免此类问题，建议在大数据项目中确保所有组件版本的一致性。

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java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: scala/runtime/java8/JFunction1$mcVI$sp
	at com.xxx$$anon$4.createSerializer(lesson1.scala:50)
	at org.apache.flink.streaming.util.typeutils.FieldAccessor$RecursiveProductFieldAccessor.<init>(FieldAccessor.java:355)
	at org.apache.flink.streaming.util.typeutils.FieldAccessorFactory.getAccessor(FieldAccessorFactory.java:76)
	at org.apache.flink.streaming.api.functions.aggregation.SumAggregator.<init>(SumAggregator.java:43)
	at org.apache.flink.streaming.api.scala.KeyedStream.aggregate(KeyedStream.scala:505)
	at org.apache.flink.streaming.api.scala.KeyedStream.sum(KeyedStream.scala:416)
	at com.xxx$.worldcountStream(lesson1.scala:51)
	at com.xxx$.main(lesson1.scala:18)
	at com.xxx.main(lesson1.scala)
	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.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205)
	at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:139)
	at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:670)
	at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:213)
	at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:901)
	at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:974)
	at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
	at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:974)
Caused by: java.lang.NoClassDefFoundError: scala/runtime/java8/JFunction1$mcVI$sp
	... 22 more
Caused by: java.lang.ClassNotFoundException: scala.runtime.java8.JFunction1$mcVI$sp
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at org.apache.flink.util.FlinkUserCodeClassLoader.loadClassWithoutExceptionHandling(FlinkUserCodeClassLoader.java:61)
	at org.apache.flink.util.ChildFirstClassLoader.loadClassWithoutExceptionHandling(ChildFirstClassLoader.java:65)
	at org.apache.flink.util.FlinkUserCodeClassLoader.loadClass(FlinkUserCodeClassLoader.java:48)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 22 more