Vladimir Ozerov created IGNITE-3928:

             Summary: Hadoop: print warning if Hadoop is found in classpath of 
parent classloader.
                 Key: IGNITE-3928
                 URL: https://issues.apache.org/jira/browse/IGNITE-3928
             Project: Ignite
          Issue Type: Sub-task
          Components: hadoop
    Affects Versions: 1.7
            Reporter: Vladimir Ozerov
            Assignee: Ivan Veselovsky
             Fix For: 1.8

Normally parent classloader should not have Hadoop in classpath. Otherwise we 
may end up in JAR hell situation.

We need to probe parent classloader for Hadoop and print a warning if Hadoop is 
likely to be in the classpath. E.g. we can probe for {{FileSystem}} or 
{{Configuration}} class.

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