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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2018/02/23 14:01:01 UTC

[jira] [Closed] (FLINK-8752) ClassNotFoundException when using the user code class loader

     [ https://issues.apache.org/jira/browse/FLINK-8752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aljoscha Krettek closed FLINK-8752.
-----------------------------------
    Resolution: Duplicate

> ClassNotFoundException when using the user code class loader
> ------------------------------------------------------------
>
>                 Key: FLINK-8752
>                 URL: https://issues.apache.org/jira/browse/FLINK-8752
>             Project: Flink
>          Issue Type: Bug
>          Components: JobManager
>    Affects Versions: 1.4.1
>            Reporter: Elias Levy
>            Priority: Major
>
> Attempting to submit a job results in the job failing while it is being started in the JMs with a ClassNotFoundException error: 
> {code:java}
> java.lang.ClassNotFoundException: com.foo.flink.common.util.TimeAssigner
> 	at java.net.URLClassLoader.findClass(Unknown Source)
> 	at java.lang.ClassLoader.loadClass(Unknown Source)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
> 	at java.lang.ClassLoader.loadClass(Unknown Source)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Unknown Source)
> 	at org.apache.flink.util.InstantiationUtil$ClassLoaderObjectInputStream.resolveClass(InstantiationUtil.java:73)
> 	at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
> 	at java.io.ObjectInputStream.readClassDesc(Unknown Source)
> 	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> 	at java.io.ObjectInputStream.readObject0(Unknown Source)
> 	at java.io.ObjectInputStream.readObject(Unknown Source)
> 	at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:393)
> 	at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:380)
> 	at org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:368)
> 	at org.apache.flink.util.SerializedValue.deserializeValue(SerializedValue.java:58)
> 	at org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.createPartitionStateHolders(AbstractFetcher.java:542)
> 	at org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.<init>(AbstractFetcher.java:167)
> 	at org.apache.flink.streaming.connectors.kafka.internal.Kafka09Fetcher.<init>(Kafka09Fetcher.java:89)
> 	at org.apache.flink.streaming.connectors.kafka.internal.Kafka010Fetcher.<init>(Kafka010Fetcher.java:62)
> 	at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer010.createFetcher(FlinkKafkaConsumer010.java:203)
> 	at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:564)
> 	at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:86)
> 	at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:55)
> 	at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:94)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:264)
> 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
> 	at java.lang.Thread.run(Unknown Source)
> {code}
> If I drop the job's jar into the lib folder in the JM and configure the JM to  classloader.resolve-order to parent-first the job starts successfully.



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