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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (LANG-1050) Change nullToEmpty methods to generics
Date Fri, 17 Oct 2014 00:25:35 GMT


ASF GitHub Bot commented on LANG-1050:

GitHub user jamessawle opened a pull request:

    LANG-1050 Generic nullToEmpty method

    A generic nullToEmpty method has been created. The idea was to use this as a base for
all of the wrapper class methods; however this would break the contract they currently provide.

You can merge this pull request into a Git repository by running:

    $ git pull LANG-1050

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #33
commit b13b977bea0246cfb439c2f4e21c0c9470d87cb7
Author: James Sawle <>
Date:   2014-10-17T00:23:17Z

    LANG-1050 Added new generic method to aid with defensive programming with arrays.


> Change nullToEmpty methods to generics
> --------------------------------------
>                 Key: LANG-1050
>                 URL:
>             Project: Commons Lang
>          Issue Type: Improvement
>          Components: lang.*
>            Reporter: James Sawle
> Currently there are multiple Object based methods which could be replaced by a single
generic method.
> - public static Long[] nullToEmpty(final Long[] array)
> - public static Integer[] nullToEmpty(final Integer[] array)
> - public static Short[] nullToEmpty(final Short[] array)
> - public static Character[] nullToEmpty(final Character[] array)
> - public static Byte[] nullToEmpty(final Byte[] array)
> - public static Double[] nullToEmpty(final Double[] array)
> - public static Float[] nullToEmpty(final Float[] array)
> - public static Boolean[] nullToEmpty(final Boolean[] array)
> Recommendation, replace all of these with a single method that would also allow a defensive
programming style when not using wrapped primitives.
> - public static <T> T[] nullToEmpty(final T[] array)

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