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https://issues.apache.org/jira/browse/HADOOP-13070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15368807#comment-15368807
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Sangjin Lee commented on HADOOP-13070:
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Until JDK gives us an API for obtaining the caller class, this might be the
best hope. One thing we could do might be to check whether the frames we're
skipping are {{java.lang.Class}} or {{java.lang.ClassLoader}}. However, I'm not
sure if that's any more reliable than the number of frames we're skipping...
> classloading isolation improvements for cleaner and stricter dependencies
> -------------------------------------------------------------------------
>
> Key: HADOOP-13070
> URL: https://issues.apache.org/jira/browse/HADOOP-13070
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Reporter: Sangjin Lee
> Assignee: Sangjin Lee
> Priority: Critical
> Attachments: HADOOP-13070.poc.01.patch, Test.java, TestDriver.java,
> classloading-improvements-ideas-v.3.pdf, classloading-improvements-ideas.pdf,
> classloading-improvements-ideas.v.2.pdf, lib.jar
>
>
> Related to HADOOP-11656, we would like to make a number of improvements in
> terms of classloading isolation so that user-code can run safely without
> worrying about dependency collisions with the Hadoop dependencies.
> By the same token, it should raised the quality of the user code and its
> specified classpath so that users get clear signals if they specify incorrect
> classpaths.
> This will contain a proposal that will include several improvements some of
> which may not be backward compatible. As such, it should be targeted to the
> next major revision of Hadoop.
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