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https://issues.apache.org/jira/browse/TOREE-528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17362690#comment-17362690
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Chris Van Houtte commented on TOREE-528:
----------------------------------------
Thanks for looking into this more. Unfortunately I'm using Debian 10 through
work, which cannot securely use Java 8. I'll keep an eye out for progress on
this one, but if it's a longer-term project please feel free to close the issue
for now.
> Unable to start kernel
> ----------------------
>
> Key: TOREE-528
> URL: https://issues.apache.org/jira/browse/TOREE-528
> Project: TOREE
> Issue Type: Bug
> Components: Kernel
> Affects Versions: 0.4.0
> Environment: Debian 10
> Reporter: Chris Van Houtte
> Priority: Major
>
> Hi there
> I cannot start the kernel on Debian 10
> $ scala -version
> Scala code runner version 2.11.12 – Copyright 2002-2017, LAMP/EPFL
> Followed the instructions here, in an anaconda environment
> [https://toree.apache.org/docs/current/user/installation/]
> The only deviation being adding the --user argument as follows
> ```
> $ jupyter toree install --spark_home=/opt/spark-3.1.1-bin-hadoop3.2/ --user
> ```
> Spark itself works fine via the terminal
>
> Error message:
> Starting Spark Kernel with SPARK_HOME=/opt/spark-3.1.1-bin-hadoop3.2/
> 21/06/04 11:46:08 WARN Utils: Your hostname, debian-ds resolves to a
> loopback address: 127.0.1.1; using 10.0.6.51 instead (on interface eno1)
> 21/06/04 11:46:08 WARN Utils: Set SPARK_LOCAL_IP if you need to bind to
> another address
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by org.apache.spark.unsafe.Platform
> ([file:/opt/spark-3.1.1-bin-hadoop3.2/jars/spark-unsafe_2.12-3.1.1.jar|file:///opt/spark-3.1.1-bin-hadoop3.2/jars/spark-unsafe_2.12-3.1.1.jar])
> to constructor java.nio.DirectByteBuffer(long,int)
> WARNING: Please consider reporting this to the maintainers of
> org.apache.spark.unsafe.Platform
> WARNING: Use --illegal-access=warn to enable warnings of further illegal
> reflective access operations
> WARNING: All illegal access operations will be denied in a future release
> 21/06/04 11:46:08 WARN NativeCodeLoader: Unable to load native-hadoop
> library for your platform... using builtin-java classes where applicable
> Exception in thread "main" java.lang.NoClassDefFoundError: scala/App$class
> at org.apache.toree.Main$.<init>(Main.scala:24)
> at org.apache.toree.Main$.<clinit>(Main.scala)
> at org.apache.toree.Main.main(Main.scala)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
> at
> org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:951)
> at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
> at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
> at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
> at
> org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1030)
> at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1039)
> at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> Caused by: java.lang.ClassNotFoundException: scala.App$class
> at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
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