Getting java.lang.ClassNotFoundExcepti
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Getting java.lang.ClassNotFoundExcepti
 
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Re: Getting java.lang.ClassNotFoundExcepti
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Hi Shankara,
can you give us some more details, e.g. - how do you run the job? - how do you add/include the jar with the missing class? - is that jar file part of your program's jar or separate? - is the missing class, i.e. "com.huawei.ccn.intelliom.ims.MeasurementTable $measurementTable" (an inner class starting in lower-case?), really in the jar file? It might be a wrongly generated protobuf class ... Nico On Tuesday, 7 November 2017 15:34:35 CET Shankara wrote: > Hi, > > I am using flink 2.1.0 version and protobuf-java 2.6.1 version. > I am getting below exception for protobuf generated class. I have included > jar which is having that class. > > Can you please help me to check it. > > org.apache.beam.sdk.util.UserCodeException: > org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException > : Could not forward element to next operator > at > org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36) > at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1$DoFnInvoker.invo > keProcessElement(Unknown Source) > at > org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoF > nRunner.java:177) at > org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunne > r.java:141) at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processEle > ment(DoFnRunnerWithMetricsUpdate.java:65) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.pr > ocessElement(DoFnOperator.java:368) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.TimestampedCollector.collect(Timest > ampedCollector.java:51) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:213) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:207) at > org.apache.flink.streaming.api.operators.StreamFlatMap.processElement(Stream > FlatMap.java:50) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermar > kContext.processAndCollectWithTimestamp(StreamSourceContexts.java:309) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkConte > xt.collectWithTimestamp(StreamSourceContexts.java:408) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.emitElement(UnboundedSourceWrapper.java:329) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.run(UnboundedSourceWrapper.java:267) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 87) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 55) at > org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTa > sk.java:95) at > org.apache.flink.streaming.runtime.tasks.StoppableSourceStreamTask.run(Stopp > ableSourceStreamTask.java:39) at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:2 > 63) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702) > at java.lang.Thread.run(Thread.java:748) > Caused by: > org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException > : Could not forward element to next operator > at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:530) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator$Mu > ltiOutputOutputManagerFactory$1.output(DoFnOperator.java:730) at > org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFn > Runner.java:211) at > org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.ja > va:66) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:436) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:424) at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1.processElement(K > afkaIO.java:690) Caused by: org.apache.beam.sdk.util.UserCodeException: > org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException > : Could not forward element to next operator > at > org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36) > at > com.huawei.ccn.intelliom.ims.feature.extractor.KpiExtractor$FilterSamplesToA > dv$DoFnInvoker.invokeProcessElement(Unknown Source) > at > org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoF > nRunner.java:177) at > org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunne > r.java:141) at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processEle > ment(DoFnRunnerWithMetricsUpdate.java:65) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.pr > ocessElement(DoFnOperator.java:368) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator$Mu > ltiOutputOutputManagerFactory$1.output(DoFnOperator.java:730) at > org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFn > Runner.java:211) at > org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.ja > va:66) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:436) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:424) at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1.processElement(K > afkaIO.java:690) at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1$DoFnInvoker.invo > keProcessElement(Unknown Source) > at > org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoF > nRunner.java:177) at > org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunne > r.java:141) at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processEle > ment(DoFnRunnerWithMetricsUpdate.java:65) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.pr > ocessElement(DoFnOperator.java:368) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.TimestampedCollector.collect(Timest > ampedCollector.java:51) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:213) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:207) at > org.apache.flink.streaming.api.operators.StreamFlatMap.processElement(Stream > FlatMap.java:50) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermar > kContext.processAndCollectWithTimestamp(StreamSourceContexts.java:309) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkConte > xt.collectWithTimestamp(StreamSourceContexts.java:408) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.emitElement(UnboundedSourceWrapper.java:329) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.run(UnboundedSourceWrapper.java:267) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 87) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 55) at > org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTa > sk.java:95) at > org.apache.flink.streaming.runtime.tasks.StoppableSourceStreamTask.run(Stopp > ableSourceStreamTask.java:39) at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:2 > 63) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702) > at java.lang.Thread.run(Thread.java:748) > Caused by: > org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException > : Could not forward element to next operator > at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:530) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator$Mu > ltiOutputOutputManagerFactory$1.output(DoFnOperator.java:730) at > org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFn > Runner.java:211) at > org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.ja > va:66) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:436) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:424) at > com.huawei.ccn.intelliom.ims.feature.extractor.KpiExtractor$FilterSamplesToA > dv.processElement(KpiExtractor.java:242) Caused by: > java.lang.RuntimeException: Unable to find proto buffer class at > com.google.protobuf.GeneratedMessageLite$SerializedForm.readResolve(Generate > dMessageLite.java:775) at > sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62 > ) at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl > .java:43) at java.lang.reflect.Method.invoke(Method.java:498) > at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java: > at > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2036) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) > at > org.apache.beam.sdk.coders.SerializableCoder.decode(SerializableCoder.java:1 > 38) at > org.apache.beam.sdk.coders.SerializableCoder.decode(SerializableCoder.java:4 > 8) at org.apache.beam.sdk.coders.Coder.decode(Coder.java:160) > at org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:85) > at org.apache.beam.sdk.coders.KvCoder.decode(KvCoder.java:36) > at > org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(Windowe > dValue.java:667) at > org.apache.beam.sdk.util.WindowedValue$FullWindowedValueCoder.decode(Windowe > dValue.java:599) at > org.apache.beam.sdk.util.CoderUtils.decodeFromSafeStream(CoderUtils.java:130 > ) at > org.apache.beam.sdk.util.CoderUtils.decodeFromByteArray(CoderUtils.java:113) > at > org.apache.beam.sdk.util.CoderUtils.decodeFromByteArray(CoderUtils.java:107) > at org.apache.beam.sdk.util.CoderUtils.clone(CoderUtils.java:156) at > org.apache.beam.runners.flink.translation.types.CoderTypeSerializer.copy(Cod > erTypeSerializer.java:64) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:526) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator$Mu > ltiOutputOutputManagerFactory$1.output(DoFnOperator.java:730) at > org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFn > Runner.java:211) at > org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.ja > va:66) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:436) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:424) at > com.huawei.ccn.intelliom.ims.feature.extractor.KpiExtractor$FilterSamplesToA > dv.processElement(KpiExtractor.java:242) at > com.huawei.ccn.intelliom.ims.feature.extractor.KpiExtractor$FilterSamplesToA > dv$DoFnInvoker.invokeProcessElement(Unknown Source) > at > org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoF > nRunner.java:177) at > org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunne > r.java:141) at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processEle > ment(DoFnRunnerWithMetricsUpdate.java:65) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.pr > ocessElement(DoFnOperator.java:368) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator$Mu > ltiOutputOutputManagerFactory$1.output(DoFnOperator.java:730) at > org.apache.beam.runners.core.SimpleDoFnRunner.outputWindowedValue(SimpleDoFn > Runner.java:211) at > org.apache.beam.runners.core.SimpleDoFnRunner.access$700(SimpleDoFnRunner.ja > va:66) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:436) at > org.apache.beam.runners.core.SimpleDoFnRunner$DoFnProcessContext.output(Simp > leDoFnRunner.java:424) at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1.processElement(K > afkaIO.java:690) at > org.apache.beam.sdk.io.kafka.KafkaIO$TypedWithoutMetadata$1$DoFnInvoker.invo > keProcessElement(Unknown Source) > at > org.apache.beam.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoF > nRunner.java:177) at > org.apache.beam.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunne > r.java:141) at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.processEle > ment(DoFnRunnerWithMetricsUpdate.java:65) at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.pr > ocessElement(DoFnOperator.java:368) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.TimestampedCollector.collect(Timest > ampedCollector.java:51) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:213) at > org.apache.beam.runners.flink.FlinkStreamingTransformTranslators$StripIdsMap > .flatMap(FlinkStreamingTransformTranslators.java:207) at > org.apache.flink.streaming.api.operators.StreamFlatMap.processElement(Stream > FlatMap.java:50) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .pushToOperator(OperatorChain.java:528) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:503) at > org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput > .collect(OperatorChain.java:483) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:891) at > org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutp > ut.collect(AbstractStreamOperator.java:869) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$ManualWatermar > kContext.processAndCollectWithTimestamp(StreamSourceContexts.java:309) at > org.apache.flink.streaming.api.operators.StreamSourceContexts$WatermarkConte > xt.collectWithTimestamp(StreamSourceContexts.java:408) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.emitElement(UnboundedSourceWrapper.java:329) at > org.apache.beam.runners.flink.translation.wrappers.streaming.io.UnboundedSou > rceWrapper.run(UnboundedSourceWrapper.java:267) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 87) at > org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java: > 55) at > org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTa > sk.java:95) at > org.apache.flink.streaming.runtime.tasks.StoppableSourceStreamTask.run(Stopp > ableSourceStreamTask.java:39) at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:2 > 63) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702) > at java.lang.Thread.run(Thread.java:748) > Caused by: java.lang.ClassNotFoundException: > com.huawei.ccn.intelliom.ims.MeasurementTable$measurementTable > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:264) > at > com.google.protobuf.GeneratedMessageLite$SerializedForm.readResolve(Generate > dMessageLite.java:768) ... 77 more > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ |
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Re: Getting java.lang.ClassNotFoundExcepti
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Re: Getting java.lang.ClassNotFoundExcepti
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Hi Shankara,
sorry for the late response, but honestly, I cannot think of a reason that some of your program's classes (using only a single jar file) are found some others are not, except for the class not being in the jar. Or there's some class loader issue in the Flink Beam runner (which I find unlikely though) - maybe Aljoscha (cc'd) can elaborate a bit more on the Beam side and has some other idea. Nico On Tuesday, 14 November 2017 14:54:28 CET Shankara wrote: > Hi Nico, > > > - how do you run the job? > > >> If we run same program in flink local then it works fine. For > > flink local we used command line > mvn package exec:java > -Dexec.mainClass=com.huawei.ccn.intelliom.ims.tmon.TMon > -Dexec.args="--threshold=Measurment:0:4001:1:90:85:CPU > --broker=192.168.56.1:9092" -Pflink-runner > > When we use flink cluster and submit jar using web UI then we are > getting exception. like below > <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t1 > 169/image953.png> > > Exception : > > <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t1 > 169/image_%281%29.png> > > - how do you add/include the jar with the missing class? > > >> We are generating the linked jar using the maven-jar-plugin. And > > in the bundled jar all the protobuf generated class exist. There is no > missing class. > > - is that jar file part of your program's jar or separate? > > >> since we are using the jar-plugin, the protobuf jar is also part > > of the generated jar. > > - is the missing class, i.e. "com.huawei.ccn.intelliom.ims.MeasurementTable > $measurementTable" (an inner class starting in lower-case?), really in the > jar > file? It might be a wrongly generated protobuf class ... > > >> sub Class is exit in Protobuf generated class. Please find the > > attached class. > > <http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t1 > 169/Selection_028.png> > > Thanks, > Shankara > > > > -- > Sent from: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ |
Re: Getting java.lang.ClassNotFoundExcepti
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Isn't one cause for ClassNotFoundException that the class can't load due to failed dependencies or a failure in a static constructor? If jar -tf target/program.jar | grep MeasurementTable shows the class is present, are there other dependencies missing? You may need to add runtime dependencies into your pom or gradle.build file. On Tue, Nov 21, 2017 at 2:28 AM, Nico Kruber <[hidden email]> wrote: Hi Shankara,
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Re: Getting java.lang.ClassNotFoundExcepti
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But wouldn't a failed dependency show another ClassNotFoundException?
On Tuesday, 21 November 2017 20:31:58 CET Gordon Weakliem wrote: > Isn't one cause for ClassNotFoundException that the class can't load due to > failed dependencies or a failure in a static constructor? > > If jar -tf target/program.jar | grep MeasurementTable shows the class is > present, are there other dependencies missing? You may need to add runtime > dependencies into your pom or gradle.build file. > > On Tue, Nov 21, 2017 at 2:28 AM, Nico Kruber <[hidden email]> wrote: > > Hi Shankara, > > sorry for the late response, but honestly, I cannot think of a reason that > > some of your program's classes (using only a single jar file) are found > > some > > others are not, except for the class not being in the jar. > > > > Or there's some class loader issue in the Flink Beam runner (which I find > > unlikely though) - maybe Aljoscha (cc'd) can elaborate a bit more on the > > Beam > > side and has some other idea. > > > > > > Nico > > > > On Tuesday, 14 November 2017 14:54:28 CET Shankara wrote: > > > Hi Nico, > > > > > > > > > - how do you run the job? > > > > > > >> If we run same program in flink local then it works fine. For > > > > > > flink local we used command line > > > > > > mvn package exec:java > > > > > > -Dexec.mainClass=com.huawei.ccn.intelliom.ims.tmon.TMon > > > -Dexec.args="--threshold=Measurment:0:4001:1:90:85:CPU > > > --broker=192.168.56.1:9092" -Pflink-runner > > > > > > When we use flink cluster and submit jar using web UI then we are > > > > > > getting exception. like below > > > <http://apache-flink-user-mailing-list-archive.2336050. > > > > n4.nabble.com/file/t1 > > > > > 169/image953.png> > > > > > > Exception : > > > <http://apache-flink-user-mailing-list-archive.2336050. > > > > n4.nabble.com/file/t1 > > > > > 169/image_%281%29.png> > > > > > > - how do you add/include the jar with the missing class? > > > > > > >> We are generating the linked jar using the maven-jar-plugin. > > > > And > > > > > in the bundled jar all the protobuf generated class exist. There is no > > > missing class. > > > > > > - is that jar file part of your program's jar or separate? > > > > > > >> since we are using the jar-plugin, the protobuf jar is also > > > > part > > > > > of the generated jar. > > > > > > - is the missing class, i.e. "com.huawei.ccn.intelliom.ims. > > > > MeasurementTable > > > > > $measurementTable" (an inner class starting in lower-case?), really in > > > > the > > > > > jar > > > file? It might be a wrongly generated protobuf class ... > > > > > > >> sub Class is exit in Protobuf generated class. Please find the > > > > > > attached class. > > > > > > <http://apache-flink-user-mailing-list-archive.2336050. > > > > n4.nabble.com/file/t1 > > > > > 169/Selection_028.png> > > > > > > Thanks, > > > Shankara > > > > > > > > > > > > -- > > > Sent from: > > > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/ |
Re: Getting java.lang.ClassNotFoundExcepti
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Re: Getting java.lang.ClassNotFoundExcepti
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Jared has a good point, what is mvn dependency:tree showing? On Wed, Nov 22, 2017 at 7:54 AM, Jared Stehler <[hidden email]> wrote:
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