Remove trailing white spaces on all lines.

src/main/java/org/apache/commons/collections4/Get.java

@@ -24,7 +24,7 @@ import java.util.Set;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 4.0
  * @see Put
  */

src/main/java/org/apache/commons/collections4/IterableGet.java

@@ -21,7 +21,7 @@ package org.apache.commons.collections4;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 4.0
  * @see Put
  */

src/main/java/org/apache/commons/collections4/MultiMap.java

@@ -41,7 +41,7 @@ import java.util.Collection;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 2.0
  * @deprecated since 4.1, use {@link MultiValuedMap} instead
  */

src/main/java/org/apache/commons/collections4/Put.java

@@ -29,7 +29,7 @@ import java.util.Map;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 4.0
  * @see Get
  */

src/main/java/org/apache/commons/collections4/bidimap/AbstractDualBidiMap.java

@@ -36,7 +36,7 @@ import org.apache.commons.collections4.keyvalue.AbstractMapEntryDecorator;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @see DualHashBidiMap
  * @see DualTreeBidiMap
  * @since 3.0

src/main/java/org/apache/commons/collections4/bidimap/DualHashBidiMap.java

@@ -38,7 +38,7 @@ import org.apache.commons.collections4.BidiMap;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @since 3.0
  */
 public class DualHashBidiMap<K, V> extends AbstractDualBidiMap<K, V> implements Serializable {

src/main/java/org/apache/commons/collections4/bidimap/DualLinkedHashBidiMap.java

@@ -33,7 +33,7 @@ import org.apache.commons.collections4.BidiMap;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @since 4.0
  */
 public class DualLinkedHashBidiMap<K, V> extends AbstractDualBidiMap<K, V> implements Serializable {

src/main/java/org/apache/commons/collections4/bidimap/TreeBidiMap.java

@@ -74,7 +74,7 @@ import org.apache.commons.collections4.keyvalue.UnmodifiableMapEntry;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 3.0 (previously DoubleOrderedMap v2.0)
  */
 public class TreeBidiMap<K extends Comparable<K>, V extends Comparable<V>>

src/main/java/org/apache/commons/collections4/comparators/ComparableComparator.java

@@ -36,7 +36,7 @@ import java.util.Comparator;
  * details.
  *
  * @param <E> the type of objects compared by this comparator
- * 
+ *
  * @since 2.0
  * @see java.util.Collections#reverseOrder()
  */

src/main/java/org/apache/commons/collections4/comparators/ReverseComparator.java

@@ -26,7 +26,7 @@ import org.apache.commons.collections4.ComparatorUtils;
  * to its {@link #compare(Object, Object) compare} method.
  *
  * @param <E> the type of objects compared by this comparator
- * 
+ *
  * @since 2.0
  * @see java.util.Collections#reverseOrder()
  */

src/main/java/org/apache/commons/collections4/comparators/TransformingComparator.java

@@ -31,7 +31,7 @@ import org.apache.commons.collections4.Transformer;
  *
  * @param <I> the input type to the transformer
  * @param <O> the output type from the transformer
- * 
+ *
  * @since 2.1
  *
  * @see org.apache.commons.collections4.Transformer

src/main/java/org/apache/commons/collections4/map/AbstractReferenceMap.java

@@ -77,7 +77,7 @@ import org.apache.commons.collections4.keyvalue.DefaultMapEntry;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @see java.lang.ref.Reference
  * @since 3.1 (extracted from ReferenceMap in 3.0)
  */

src/main/java/org/apache/commons/collections4/map/CompositeMap.java

@@ -500,7 +500,7 @@ public class CompositeMap<K, V> extends AbstractIterableMap<K, V> implements Ser
      * This interface allows definition for all of the indeterminate
      * mutators in a CompositeMap, as well as providing a hook for
      * callbacks on key collisions.
-     * 
+     *
      * @param <K> the type of the keys in the map
      * @param <V> the type of the values in the map
      */

src/main/java/org/apache/commons/collections4/map/DefaultedMap.java

@@ -58,7 +58,7 @@ import org.apache.commons.collections4.functors.FactoryTransformer;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @since 3.2
  * @see LazyMap
  */

src/main/java/org/apache/commons/collections4/map/EntrySetToMapIteratorAdapter.java

@@ -28,7 +28,7 @@ import org.apache.commons.collections4.ResettableIterator;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @since 4.0
  */
 public class EntrySetToMapIteratorAdapter<K, V> implements MapIterator<K, V>, ResettableIterator<K> {

src/main/java/org/apache/commons/collections4/map/ReferenceIdentityMap.java

@@ -72,7 +72,7 @@ import java.lang.ref.Reference;
  *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @see java.lang.ref.Reference
  * @since 3.0 (previously in main package v2.1)
  */

src/main/java/org/apache/commons/collections4/map/ReferenceMap.java

@@ -67,7 +67,7 @@ import java.io.Serializable;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @see java.lang.ref.Reference
  * @since 3.0 (previously in main package v2.1)
  */

src/main/java/org/apache/commons/collections4/map/TransformedMap.java

@@ -40,10 +40,10 @@ import org.apache.commons.collections4.Transformer;
  * <p>
  * This class is Serializable from Commons Collections 3.1.
  * <p>
- * 
+ *
  * @param <K> the type of the keys in this map
  * @param <V> the type of the values in this map
- * 
+ *
  * @see org.apache.commons.collections4.splitmap.TransformedSplitMap
  * @since 3.0
  */

src/main/java/org/apache/commons/collections4/map/UnmodifiableEntrySet.java

@@ -34,7 +34,7 @@ import org.apache.commons.collections4.set.AbstractSetDecorator;
  *
  * @param <K> the type of the keys in the map
  * @param <V> the type of the values in the map
- * 
+ *
  * @since 3.0
  */
 public final class UnmodifiableEntrySet<K, V>

src/main/java/org/apache/commons/collections4/trie/PatriciaTrie.java

@@ -52,7 +52,7 @@ import org.apache.commons.collections4.trie.analyzer.StringKeyAnalyzer;
  * are suited only to variable length keys.
  *
  * @param <E> the type of the values in this map
- * 
+ *
  * @see <a href="http://en.wikipedia.org/wiki/Radix_tree">Radix Tree</a>
  * @see <a href="http://www.csse.monash.edu.au/~lloyd/tildeAlgDS/Tree/PATRICIA">PATRICIA</a>
  * @see <a href="http://www.imperialviolet.org/binary/critbit.pdf">Crit-Bit Tree</a>

src/test/java/org/apache/commons/collections4/QueueUtilsTest.java

@@ -51,8 +51,8 @@ public class QueueUtilsTest {
         } catch (final NullPointerException ex) {
             // expected
         }
-    }    
-    
+    }
+
     @Test
     public void testUnmodifiableQueue() {
         Queue<Object> queue = QueueUtils.unmodifiableQueue(new LinkedList<>());