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https://issues.apache.org/jira/browse/COLLECTIONS-385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139441#comment-13139441
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Gary D. Gregory commented on COLLECTIONS-385:
---------------------------------------------
I do not think this applies to trunk.
> Inconsistent Javadoc comment and code in addAll(Collection, Object[]) in
> org.apache.commons.collections.CollectionUtils
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: COLLECTIONS-385
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-385
> Project: Commons Collections
> Issue Type: Bug
> Components: Collection
> Affects Versions: 2.1, 2.1.1, 3.0, 3.1, 3.2
> Environment: Platform Independent
> Reporter: SHIN HWEI TAN
> Labels: javadoc, nullpointerexception
> Original Estimate: 5m
> Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws NullPointerException
> if the collection or array is null".
> /**
> * Adds all elements in the array to the given collection.
> *
> * @param collection the collection to add to, must not be null
> * @param elements the array of elements to add, must not be null
> * @throws NullPointerException if the collection or array is null
> */
> public static void addAll(Collection collection, Object[] elements) {
> for (int i = 0, size = elements.length; i < size; i++) {
> collection.add(elements[i]);
> }
> }
> However, when called with an empty array and a null collection (i.e.,
> "addAll((Collection)null, new Object[])"), the method executes normally
> without throwing any exception.
> Suggested Fixes:
> 1. Add code "if (collection == null) throw NullPointerException();" at the
> beginning of the method body.
> or
> 2. Remove "@throws NullPointerException if the collection or array is null"
> from the Javadoc.
> or
> 3. Change "@throws NullPointerException if the collection or array is null"
> to "@throws NullPointerException if the array is null or (the array is
> non-empty and the collection is null)".
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