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https://issues.apache.org/jira/browse/COLLECTIONS-652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebb closed COLLECTIONS-652.
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> An obvious bug in CollectionUtils
> ---------------------------------
>
> Key: COLLECTIONS-652
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-652
> Project: Commons Collections
> Issue Type: Bug
> Components: Collection
> Affects Versions: 3.2.1
> Environment: windows 7, jdk8. This bug is so obvious so I think it is
> nothing to do with environment
> Reporter: samray leung
> Priority: Minor
> Labels: easyfix
> Fix For: 3.2.2
>
> Original Estimate: 10m
> Remaining Estimate: 10m
>
> In CollectionUtils.java:
> Line number: 1121
> /**
> * Removes the elements in <code>remove</code> from
> <code>collection</code>. That is, this
> * method returns a collection containing all the elements in
> <code>c</code>
> * that are not in <code>remove</code>. The cardinality of an element
> <code>e</code>
> * in the returned collection is the same as the cardinality of
> <code>e</code>
> * in <code>collection</code> unless <code>remove</code> contains
> <code>e</code>, in which
> * case the cardinality is zero. This method is useful if you do not wish
> to modify
> * the collection <code>c</code> and thus cannot call
> <code>collection.removeAll(remove);</code>.
> *
> * @param collection the collection from which items are removed (in the
> returned collection)
> * @param remove the items to be removed from the returned
> <code>collection</code>
> * @return a <code>Collection</code> containing all the elements of
> <code>collection</code> except
> * any elements that also occur in <code>remove</code>.
> * @throws NullPointerException if either parameter is null
> * @since Commons Collections 3.2
> */
> public static Collection removeAll(Collection collection, Collection
> remove) {
> return ListUtils.retainAll(collection, remove);
> }
> The method should call ListUtils.removeAll(Collection collection, Collection
> remove) instead of calling ListUtils.retailAll(collection,remove)
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