[jira] [Updated] (SPARK-7733) Update build, code to use Java 7 for 1.5.0+

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-7733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-7733:
-----------------------------
    Priority: Minor  (was: Major)

> Update build, code to use Java 7 for 1.5.0+
> -------------------------------------------
>
>                 Key: SPARK-7733
>                 URL: https://issues.apache.org/jira/browse/SPARK-7733
>             Project: Spark
>          Issue Type: Task
>          Components: Build, Deploy, Spark Core
>            Reporter: Sean Owen
>            Assignee: Sean Owen
>            Priority: Minor
>             Fix For: 1.5.0
>
>
> Following the announced intention to drop Java 6 support in Spark 1.5, we should go ahead and switch master to Java 7 for Spark 1.5. We can also then remove a few checks and comments that were specific to supporting Java 6.
> I think we might also usefully use the try-with-resources feature to improve / tighten up resource management in Java code, and look at replacing some uses of Guava functions with new JDK equivalents.
> It's probably not quite worth replacing {{List<String> foo = new ArrayList<String>()}} with {{List<String> foo = new ArrayList<>()}} everywhere but that simplification might be useful to apply over time as the Java code is otherwise changed.



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