[ https://issues.apache.org/jira/browse/COLLECTIONS-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17000892#comment-17000892 ]
Wesllhey Holanda edited comment on COLLECTIONS-742 at 12/20/19 1:42 PM: ------------------------------------------------------------------------ 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. > -- This message was sent by Atlassian Jira (v8.3.4#803005)