[ 
https://issues.apache.org/jira/browse/HADOOP-18303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17561964#comment-17561964
 ] 

YUBI LEE commented on HADOOP-18303:
-----------------------------------

I think "Spark" also affected. (e.g. 3.3.0 Pre-built for Apache Hadoop 3.3 and 
later)
[https://spark.apache.org/downloads.html]

 

```

Exception in thread "main" java.lang.NoClassDefFoundError: 
org/apache/hadoop/shaded/javax/ws/rs/core/NoContentException
        at 
org.apache.hadoop.yarn.util.timeline.TimelineUtils.<clinit>(TimelineUtils.java:60)
        at 
org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceInit(YarnClientImpl.java:200)
        at 
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
        at 
org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:191)
        at org.apache.spark.deploy.yarn.Client.run(Client.scala:1327)
        at 
org.apache.spark.deploy.yarn.YarnClusterApplication.start(Client.scala:1764)
        at 
org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:958)
        at 
org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
        at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
        at 
org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1046)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1055)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.ClassNotFoundException: 
org.apache.hadoop.shaded.javax.ws.rs.core.NoContentException
        at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 13 more

```

> Remove shading exclusion of javax.ws.rs-api from hadoop-client-runtime
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-18303
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18303
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Viraj Jasani
>            Assignee: Viraj Jasani
>            Priority: Critical
>              Labels: pull-request-available
>          Time Spent: 3h 10m
>  Remaining Estimate: 0h
>
> As part of HADOOP-18033, we have excluded shading of javax.ws.rs-api from 
> both hadoop-client-runtime and hadoop-client-minicluster. This has caused 
> issues for downstreamers e.g. 
> [https://github.com/apache/incubator-kyuubi/issues/2904], more discussions.
> We should put the shading back in hadoop-client-runtime to fix CNFE issues 
> for downstreamers.
> cc [~ayushsaxena] [~pan3793] 



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