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From "nijel (JIRA)" <j...@apache.org>
Subject [jira] [Moved] (YARN-3771) "final" behavior is not honored for YarnConfiguration.DEFAULT_YARN_APPLICATION_CLASSPATH since it is a String[]
Date Fri, 05 Jun 2015 11:51:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-3771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

nijel moved HDFS-8526 to YARN-3771:
-----------------------------------

        Key: YARN-3771  (was: HDFS-8526)
    Project: Hadoop YARN  (was: Hadoop HDFS)

> "final" behavior is not honored for YarnConfiguration.DEFAULT_YARN_APPLICATION_CLASSPATH
 since it is a String[]
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-3771
>                 URL: https://issues.apache.org/jira/browse/YARN-3771
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: nijel
>            Assignee: nijel
>
> i was going through some find bugs rules. One issue reported in that is 
>  public static final String[] DEFAULT_YARN_APPLICATION_CLASSPATH = {
> and 
>   public static final String[] DEFAULT_YARN_CROSS_PLATFORM_APPLICATION_CLASSPATH=
> is not honoring the final qualifier. The string array contents can be re assigned !
> Simple test
> {code}
> public class TestClass {
>   static final String[] t = { "1", "2" };
>   public static void main(String[] args) {
>     System.out.println(12 < 10);
>     String[] t1={"u"};
> //    t = t1; // this will show compilation  error
>     t (1) = t1 (1) ; // But this works
>   }
> }
> {code}
> One option is to use Collections.unmodifiableList
> any thoughts ?



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