[jira] [Resolved] (COLLECTIONS-842) AbstractLinkedList incompatible with JDK 21's java.util.List

["Alex Herbert (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COLLECTIONS-842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alex Herbert resolved COLLECTIONS-842.
--------------------------------------
    Fix Version/s: 4.5.0
       Resolution: Implemented

Deprecated existing AbstractLinkedList (and sub-classes) and added a replacement list compatible with Java 21 in commit:

634b23dbbbaf64816685b168aedfcfec2dbe00c1

> AbstractLinkedList incompatible with JDK 21's java.util.List
> ------------------------------------------------------------
>
>                 Key: COLLECTIONS-842
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-842
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: List
>            Reporter: Julian Reschke
>            Priority: Major
>             Fix For: 4.5.0
>
>
> New JDK 21 method in java.util.List [addLast|https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/List.html#addLast(E)] has a {{void}} return type. This clashes with the existing {{boolean}} return from the same method in AbstractLinkedList:
> {code:java}
> java.util.List {
>     default void addLast(E e);
> }
> org.apache.commons.collections4.list.AbstractLinkedList {
>     public boolean addLast(final E o);
> }
> {code}



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