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https://issues.apache.org/jira/browse/COLLECTIONS-799?focusedWorklogId=647849&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-647849
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ASF GitHub Bot logged work on COLLECTIONS-799:
----------------------------------------------
Author: ASF GitHub Bot
Created on: 08/Sep/21 09:22
Start Date: 08/Sep/21 09:22
Worklog Time Spent: 10m
Work Description: coveralls edited a comment on pull request #250:
URL:
https://github.com/apache/commons-collections/pull/250#issuecomment-914645718
[](https://coveralls.io/builds/42722290)
Coverage decreased (-0.03%) to 90.115% when pulling
**18bb8734d69b3729402bcae8f0e5a12fdc80774d on
scordio:COLLECTIONS-799-UnmodifiableNavigableSet** into
**ddb4f78cfffc3392d897f7d59b75db946bf3a055 on apache:master**.
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Issue Time Tracking
-------------------
Worklog Id: (was: 647849)
Time Spent: 40m (was: 0.5h)
> UnmodifiableNavigableSet can be modified by pollFirst() and pollLast()
> ----------------------------------------------------------------------
>
> Key: COLLECTIONS-799
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-799
> Project: Commons Collections
> Issue Type: Bug
> Components: Collection, Set
> Affects Versions: 4.4
> Reporter: Stefano Cordio
> Priority: Major
> Fix For: 4.5
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> [{{pollFirst()}}|https://docs.oracle.com/javase/7/docs/api/java/util/NavigableSet.html#pollFirst()]
> and
> [{{pollLast()}}|https://docs.oracle.com/javase/7/docs/api/java/util/NavigableSet.html#pollLast()]
> are successfully executed and do not throw an
> {{UnsupportedOperationException}} on an {{UnmodifiableNavigableSet}} instance.
> In my opinion,
> {{org.apache.commons.collections4.set.UnmodifiableNavigableSet}} should have
> an implementation similar to
> {{java.util.Collections.UnmodifiableNavigableSet}}, where both methods throw
> an {{UnsupportedOperationException}}:
> https://github.com/openjdk/jdk/blob/708407eddc9d52c01de02e3986c05e1c6225fa85/src/java.base/share/classes/java/util/Collections.java#L1278-L1279
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