Sangjin Lee created HADOOP-13398:
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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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