Vlad Rozov created SPARK-51644:
----------------------------------

             Summary: spark shells are broken
                 Key: SPARK-51644
                 URL: https://issues.apache.org/jira/browse/SPARK-51644
             Project: Spark
          Issue Type: Bug
          Components: Connect
    Affects Versions: 4.1.0
            Reporter: Vlad Rozov


[https://github.com/apache/spark/pull/49971] breaks spark shells:
{noformat}
./bin/spark-shell --remote local{noformat}
and
{noformat}
bin/pyspark --remote local{noformat}
errors out with {{NoClassDefFoundError}}:
{noformat}
WARNING: Using incubator modules: jdk.incubator.vector
Exception in thread "main" java.lang.NoClassDefFoundError: 
org/sparkproject/com/google/common/io/BaseEncoding
        at org.sparkproject.io.grpc.Metadata.<clinit>(Metadata.java:114)
        at 
org.apache.spark.sql.connect.client.SparkConnectClient$.<clinit>(SparkConnectClient.scala:407)
        at 
org.apache.spark.sql.connect.SparkSession$.withLocalConnectServer(SparkSession.scala:780)
        at 
org.apache.spark.sql.application.ConnectRepl$.doMain(ConnectRepl.scala:67)
        at 
org.apache.spark.sql.application.ConnectRepl$.main(ConnectRepl.scala:57)
        at org.apache.spark.sql.application.ConnectRepl.main(ConnectRepl.scala)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:569)
        at 
org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
        at 
org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:1027)
        at 
org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:204)
        at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:227)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:96)
        at 
org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1132)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1141)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.ClassNotFoundException: 
org.sparkproject.com.google.common.io.BaseEncoding
        at 
java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
        at 
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
        ... 18 more{noformat}
 



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