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[COLLECTIONS-710] NullPointerExceptions in CompositeCollection, 

CompositeSet, and CompositeMap.
This commit is contained in:
Gary Gregory 2019-02-09 18:00:23 -05:00
parent 036bbf34d2
commit c46666c5dd
3 changed files with 21 additions and 10 deletions
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5
src/changes/changes.xml
View File

@ -20,6 +20,11 @@
<title>Commons Collections Changes</title>
</properties>
<body>
<release version="4.3.1" date="2019-MM-DD" description="Maintenance release.">
<action issue="COLLECTIONS-710" dev="ggregory" type="fix" due-to="Yu Shi, Gary Gregory">
NullPointerExceptions in CompositeCollection, CompositeSet, and CompositeMap.
</action>
</release>
<release version="4.3" date="2018-12-21" description="Update from Java 7 to Java 8, bug fixes, and small changes.">
<action issue="COLLECTIONS-691" dev="kinow" type="fix" due-to="Eitan Adler">
Use boolean operator for boolean result.

22
src/main/java/org/apache/commons/collections4/map/CompositeMap.java
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@ -132,19 +132,21 @@ public class CompositeMap<K, V> extends AbstractIterableMap<K, V> implements Ser
*/
@SuppressWarnings("unchecked")
public synchronized void addComposited(final Map<K, V> map) throws IllegalArgumentException {
for (int i = composite.length - 1; i >= 0; --i) {
final Collection<K> intersect = CollectionUtils.intersection(this.composite[i].keySet(), map.keySet());
if (intersect.size() != 0) {
if (this.mutator == null) {
throw new IllegalArgumentException("Key collision adding Map to CompositeMap");
if (map != null) {
for (int i = composite.length - 1; i >= 0; --i) {
final Collection<K> intersect = CollectionUtils.intersection(this.composite[i].keySet(), map.keySet());
if (intersect.size() != 0) {
if (this.mutator == null) {
throw new IllegalArgumentException("Key collision adding Map to CompositeMap");
}
this.mutator.resolveCollision(this, this.composite[i], map, intersect);
}
this.mutator.resolveCollision(this, this.composite[i], map, intersect);
}
final Map<K, V>[] temp = new Map[this.composite.length + 1];
System.arraycopy(this.composite, 0, temp, 0, this.composite.length);
temp[temp.length - 1] = map;
this.composite = temp;
}
final Map<K, V>[] temp = new Map[this.composite.length + 1];
System.arraycopy(this.composite, 0, temp, 0, this.composite.length);
temp[temp.length - 1] = map;
this.composite = temp;
}
/**

4
src/test/java/org/apache/commons/collections4/map/CompositeMapTest.java
View File

@ -75,6 +75,7 @@ public class CompositeMapTest<K, V> extends AbstractIterableMapTest<K, V> {
final CompositeMap<K, V> map = new CompositeMap<>(buildOne(), buildTwo());
final HashMap<K, V> three = new HashMap<>();
three.put((K) "5", (V) "five");
map.addComposited(null);
map.addComposited(three);
assertTrue(map.containsKey("5"));
try {
@ -90,6 +91,7 @@ public class CompositeMapTest<K, V> extends AbstractIterableMapTest<K, V> {
final CompositeMap<K, V> map = new CompositeMap<>(buildOne(), buildTwo());
final HashMap<K, V> three = new HashMap<>();
three.put((K) "5", (V) "five");
map.addComposited(null);
map.addComposited(three);
assertTrue(map.containsKey("5"));
@ -106,6 +108,7 @@ public class CompositeMapTest<K, V> extends AbstractIterableMapTest<K, V> {
final CompositeMap<K, V> map = new CompositeMap<>(buildOne(), buildTwo());
final HashMap<K, V> three = new HashMap<>();
three.put((K) "5", (V) "five");
map.addComposited(null);
map.addComposited(three);
assertTrue(map.containsKey("5"));
@ -119,6 +122,7 @@ public class CompositeMapTest<K, V> extends AbstractIterableMapTest<K, V> {
final CompositeMap<K, V> map = new CompositeMap<>(buildOne(), buildTwo());
final HashMap<K, V> three = new HashMap<>();
three.put((K) "5", (V) "five");
map.addComposited(null);
map.addComposited(three);
assertTrue(map.containsKey("5"));