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https://issues.apache.org/jira/browse/FLINK-8658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364671#comment-16364671
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sathiyarajan commented on FLINK-8658:
-------------------------------------

Thanks [Ken Krugler] . 

> NoClassDefFoundError: Could not initialize class 
> org.elasticsearch.transport.client.PreBuiltTransportClient
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-8658
>                 URL: https://issues.apache.org/jira/browse/FLINK-8658
>             Project: Flink
>          Issue Type: Bug
>          Components: ElasticSearch Connector
>    Affects Versions: 1.4.0
>         Environment: Flink 1.4.0 , Easticsearch 5.1.1, Scala 2.11.0, kafka 
> 0.10.0, Ubuntu 17.04.
>  
>  
>            Reporter: sathiyarajan
>            Priority: Major
>              Labels: features
>   Original Estimate: 4m
>  Remaining Estimate: 4m
>
>  
> NoClassDefFoundError: Could not initialize class 
> org.elasticsearch.transport.client.PreBuiltTransportClient is displayed while 
> running flink 1.4.0 with Elasticsearch 5.1.1 .
>  
> Note: In IntellIj SBT its working fine but while deplying the same jar in 
> flink1.4.0 
> Stack Trace:
> NoClassDefFoundError: Could not initialize class 
> org.elasticsearch.transport.client.PreBuiltTransportClient at
>  
> org.apache.flink.streaming.connectors.elasticsearch5.Elasticsearch5ApiCallBridge.createClient(Elasticsearch5ApiCallBridge.java:73)
> at 
> org.apache.flink.streaming.connectors.elasticsearch.ElasticsearchSinkBase.open(ElasticsearchSinkBase.java:281)
> at 
> org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
> at 
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102)
> at 
> org.apache.flink.streaming.api.operators.StreamSink.open(StreamSink.java:48)
> at 
> org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:393)
> at 
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:254)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
> at java.lang.Thread.run(Thread.java:748)



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