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Posted to issues@commons.apache.org by "Hans Aikema (Jira)" <ji...@apache.org> on 2024/06/09 20:10:00 UTC
[jira] [Commented] (COLLECTIONS-701) StackOverflowError in SetUniqueList.add() when it receives itself
[ https://issues.apache.org/jira/browse/COLLECTIONS-701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17853534#comment-17853534 ]
Hans Aikema commented on COLLECTIONS-701:
-----------------------------------------
[~ggregory] I would not consider this resolved. StackOverflowException is easily triggered again by adding itself a second time.
> StackOverflowError in SetUniqueList.add() when it receives itself
> -----------------------------------------------------------------
>
> Key: COLLECTIONS-701
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-701
> Project: Commons Collections
> Issue Type: Bug
> Components: Collection
> Affects Versions: 3.2.2
> Reporter: Shin Hong
> Priority: Critical
> Fix For: 4.3
>
>
> Hi.
> We found that the following test case fails with a StackOverFlowError exception:
> {code:java}
> test() {
> SetUniqueList l = new SetUniqueList(new LinkedList<Object>()) ;
> l.add((Object) l) ;
> }{code}
> The add() execution traps into an infinite recursion which crashes the program.
> From the stack trace, we found that the infinite recursion occurs
> at AbstractList.hashCode() since it invokes hashCode() of each of its elements.
>
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