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https://issues.apache.org/jira/browse/COLLECTIONS-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17000892#comment-17000892
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Wesllhey Holanda edited comment on COLLECTIONS-742 at 12/20/19 1:42 PM:
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Hello, Chen Guopin,
The "problem" of it, is when the collection is null, it will return an
exception, and not null.
I think that with a method that return null when the collection is null, it
will avoid to deal with null point exception before the method call.
was (Author: wesllhey):
The "problem" of it, is when the collection is null, it will return an
exception, and not null.
I think that with a method that return null when the collection is null, it
will avoid to deal with null point exception before the method call.
> Create new method in CollectionUtils to return first element if not null
> ------------------------------------------------------------------------
>
> Key: COLLECTIONS-742
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-742
> Project: Commons Collections
> Issue Type: New Feature
> Components: Collection
> Affects Versions: 4.4
> Reporter: Wesllhey Holanda
> Priority: Minor
> Original Estimate: 8h
> Remaining Estimate: 8h
>
> When we try to get the first element into collection, we have to lead with
> null point exception. So with this method, when the collection is null or
> empty, the method will return null, and when not, the method will return the
> first element.
> In this way, the user don't need to write nothing to lead with null point
> exception.
>
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