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https://issues.apache.org/jira/browse/FLINK-34472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17818814#comment-17818814
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jeremyMu commented on FLINK-34472:
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It's the same problem
> loading class of protobuf format descriptor by "Class.forName(className,
> true, Thread.currentThread().getContextClassLoader())" may can not find class
> because the current thread class loader may not contain this class
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-34472
> URL: https://issues.apache.org/jira/browse/FLINK-34472
> Project: Flink
> Issue Type: Bug
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
> Affects Versions: 1.16.2, 1.18.1
> Reporter: jeremyMu
> Priority: Minor
> Fix For: 1.20.0
>
> Attachments: exception1.png, sourcecode.jpg, sourcecode2.png,
> sourcecode3.png
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> 1、Stack information：
> Caused by: java.lang.IllegalArgumentException: get test.ProtobufTest1
> descriptors error!
> at
> org.apache.flink.formats.protobuf.util.PbFormatUtils.getDescriptor(PbFormatUtils.java:94)
> at
> org.apache.flink.formats.protobuf.serialize.PbRowDataSerializationSchema.<init>(PbRowDataSerializationSchema.java:49)
> at
> org.apache.flink.formats.protobuf.PbEncodingFormat.createRuntimeEncoder(PbEncodingFormat.java:47)
> at
> org.apache.flink.formats.protobuf.PbEncodingFormat.createRuntimeEncoder(PbEncodingFormat.java:31)
> at
> org.apache.flink.streaming.connectors.kafka.table.KafkaDynamicSink.createSerialization(KafkaDynamicSink.java:388)
> at
> org.apache.flink.streaming.connectors.kafka.table.KafkaDynamicSink.getSinkRuntimeProvider(KafkaDynamicSink.java:194)
> at
> org.apache.flink.table.planner.plan.nodes.exec.common.CommonExecSink.createSinkTransformation(CommonExecSink.java:150)
> at
> org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.java:176)
> at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase.translateToPlan(ExecNodeBase.java:159)
> at
> org.apache.flink.table.planner.delegation.StreamPlanner.$anonfun$translateToPlan$1(StreamPlanner.scala:85)
> at
> scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:233)
> at scala.collection.Iterator.foreach(Iterator.scala:937)
> at scala.collection.Iterator.foreach$(Iterator.scala:937)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1425)
> at scala.collection.IterableLike.foreach(IterableLike.scala:70)
> at scala.collection.IterableLike.foreach$(IterableLike.scala:69)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at scala.collection.TraversableLike.map(TraversableLike.scala:233)
> at scala.collection.TraversableLike.map$(TraversableLike.scala:226)
> at scala.collection.AbstractTraversable.map(Traversable.scala:104)
> 2、my suggestion:
> Add a member variable to PbEncodingFormat: class loader instance, which is
> passed through DynamicTableFactory.Context method :getClassLoader()
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