[jira] [Assigned] (SPARK-25984) Remove deprecated .newInstance(), primitive box class constructor calls

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-25984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-25984:
------------------------------------

    Assignee: Apache Spark  (was: Sean Owen)

> Remove deprecated .newInstance(), primitive box class constructor calls
> -----------------------------------------------------------------------
>
>                 Key: SPARK-25984
>                 URL: https://issues.apache.org/jira/browse/SPARK-25984
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core, SQL, Structured Streaming
>    Affects Versions: 3.0.0
>            Reporter: Sean Owen
>            Assignee: Apache Spark
>            Priority: Minor
>
> While working on JDK 11 support, I noticed a lot of new deprecation warnings. 80% of them seem to be from two easily-fixable sources:
> - Class.newInstance() is deprecated
> - Almost all constructors from primitive box classes like Integer are deprecated
> These are easy to fix because there have long been equivalent, better alternatives:
> - Just call .getConstructor().getInstance()
> - Replace new Integer(x) with Integer.valueOf(x), etc
> The latter has the advantage, for integral types, of not even allocating a new object for small values.
> We should just fix these to clean up the build output.



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