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https://issues.apache.org/jira/browse/SPARK-1693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13986523#comment-13986523
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Sean Owen commented on SPARK-1693:
----------------------------------

No, that's exactly the problem as far as I can tell. My suggestion is:

- In core, exclude org.eclipse.jetty.orbit:javax.servlet from 
org.eclipse.jetty:jetty-server
- Declare a runtime-scope dependency in core, on 
javax.servlet:servlet-api:jar:3.0
- (And that will happen to override Hadoop's javax.servlet:servlet-api:jar:2.5 
!)
- Update the SBT build as closely as possible to match

> Most of the tests throw a java.lang.SecurityException when spark built for 
> hadoop 2.3.0 , 2.4.0 
> ------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-1693
>                 URL: https://issues.apache.org/jira/browse/SPARK-1693
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>            Reporter: Guoqiang Li
>            Assignee: Guoqiang Li
>         Attachments: log.txt
>
>
> {code}mvn test -Pyarn -Dhadoop.version=2.4.0 -Dyarn.version=2.4.0 > 
> log.txt{code}
> The log: 
> {code}
> UnpersistSuite:
> - unpersist RDD *** FAILED ***
>   java.lang.SecurityException: class "javax.servlet.FilterRegistration"'s 
> signer information does not match signer information of other classes in the 
> same package
>   at java.lang.ClassLoader.checkCerts(ClassLoader.java:952)
>   at java.lang.ClassLoader.preDefineClass(ClassLoader.java:666)
>   at java.lang.ClassLoader.defineClass(ClassLoader.java:794)
>   at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>   at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
>   at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
>   at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>   at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>   at java.security.AccessController.doPrivileged(Native Method)
>   at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> {code}



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