[jira] [Created] (HADOOP-18090) Exclude com/jcraft/jsch classes from being shaded/relocated

["mkv (Jira)" <ji...@apache.org>]

mkv created HADOOP-18090:
----------------------------

             Summary: Exclude com/jcraft/jsch classes from being shaded/relocated
                 Key: HADOOP-18090
                 URL: https://issues.apache.org/jira/browse/HADOOP-18090
             Project: Hadoop Common
          Issue Type: Bug
          Components: build
    Affects Versions: 3.3.1
            Reporter: mkv


Spark 3.2.0 transitively introduces hadoop-client-api and hadoop-client-runtime dependencies.

When we create a SFTPFileSystem instance (org.apache.hadoop.fs.sftp.SFTPFileSystem) it tries to load the relocated classes from _com.jcraft.jsch_ package.

The filesystem instance creation fails with error:
{code:java}
java.lang.ClassNotFoundException: org.apache.hadoop.shaded.com.jcraft.jsch.SftpException
    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) {code}



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