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[COLLECTIONS-536] Improved null check. Thanks to Tagir Valeev. 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1635303 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas Neidhart 2014-10-29 21:05:03 +00:00
parent a3503a1b56
commit b9284992ea
2 changed files with 6 additions and 1 deletions
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3
src/changes/changes.xml
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@ -22,6 +22,9 @@
<body>
<release version="4.1" date="TBD" description="">
<action issue="COLLECTIONS-536" dev="tn" type="fix" due-to="Tagir Valeev">
Improved check for null input in "MapUtils#putAll(Map, Object[])".
</action>
<action issue="COLLECTIONS-534" dev="tn" type="fix" due-to="Oswaldo Olivo">
Added clarifying javadoc wrt runtime complexity of "CollectionBag#retainAll".
</action>

4
src/main/java/org/apache/commons/collections4/MapUtils.java
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@ -1147,7 +1147,9 @@ public class MapUtils {
*/
@SuppressWarnings("unchecked") // As per Javadoc throws CCE for invalid array contents
public static <K, V> Map<K, V> putAll(final Map<K, V> map, final Object[] array) {
map.size(); // force NPE
if (map == null) {
throw new NullPointerException("The map must not be null");
}
if (array == null || array.length == 0) {
return map;
}