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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13398) prevent user classes from loading classes in the parent classpath with ApplicationClassLoader
Date Thu, 21 Jul 2016 19:16:20 GMT
Sangjin Lee created HADOOP-13398:
------------------------------------

             Summary: prevent user classes from loading classes in the parent classpath with
ApplicationClassLoader
                 Key: HADOOP-13398
                 URL: https://issues.apache.org/jira/browse/HADOOP-13398
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: util
            Reporter: Sangjin Lee
            Assignee: Sangjin Lee
            Priority: Critical


Today, a user class is able to trigger loading a class from Hadoop's dependencies, with or
without the use of {{ApplicationClassLoader}}, and it creates an implicit dependence from
users' code on Hadoop's dependencies, and as a result dependency conflicts.

We should modify {{ApplicationClassLoader}} to prevent a user class from loading a class from
the parent classpath.



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