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https://issues.apache.org/jira/browse/HADOOP-5740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702407#action_12702407
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Steve Loughran commented on HADOOP-5740:
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1. This could be the same Jasper one we are seeing in hadoop
https://issues.apache.org/bugzilla/show_bug.cgi?id=41509
2. Discussion from Sun about how java6 changed part of the classloaders to
return an immutable collection
http://mail-archives.apache.org/mod_mbox/incubator-river-user/200810.mbox/%3c20081015181649.gb4...@east%3e
Assuming these are released, Sun broke things in Java 6.
> Hadoop JSP pages don't work under a security manager
> ----------------------------------------------------
>
> Key: HADOOP-5740
> URL: https://issues.apache.org/jira/browse/HADOOP-5740
> Project: Hadoop Core
> Issue Type: Bug
> Components: fs, mapred
> Affects Versions: 0.21.0
> Reporter: Steve Loughran
> Priority: Minor
>
> When you run Hadoop under a security manager that says "yes" to all security
> checks, you get stack traces when Jetty tries to initialise the JSP engine.
> Which implies you can't use Jasper under a security manager
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