Add missing since tags.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1479401 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/collections4/collection/PredicatedCollection.java

@@ -57,6 +57,7 @@ public class PredicatedCollection<E> extends AbstractCollectionDecorator<E> {
      * @return a new predicated collection
      * @throws IllegalArgumentException if collection or predicate is null
      * @throws IllegalArgumentException if the collection contains invalid elements
+     * @since 4.0
      */
     public static <T> PredicatedCollection<T> predicatedCollection(final Collection<T> coll,
                                                                    final Predicate<? super T> predicate) {

src/main/java/org/apache/commons/collections4/collection/SynchronizedCollection.java

@@ -55,6 +55,7 @@ public class SynchronizedCollection<E> implements Collection<E>, Serializable {
      * @param coll  the collection to decorate, must not be null
      * @return a new synchronized collection
      * @throws IllegalArgumentException if collection is null
+     * @since 4.0
      */
     public static <T> SynchronizedCollection<T> synchronizedCollection(final Collection<T> coll) {
         return new SynchronizedCollection<T>(coll);

src/main/java/org/apache/commons/collections4/collection/TransformedCollection.java

@@ -56,6 +56,7 @@ public class TransformedCollection<E> extends AbstractCollectionDecorator<E> {
      * @param transformer  the transformer to use for conversion, must not be null
      * @return a new transformed collection
      * @throws IllegalArgumentException if collection or transformer is null
+     * @since 4.0
      */
     public static <E> TransformedCollection<E> transformingCollection(final Collection<E> coll,
             final Transformer<? super E, ? extends E> transformer) {

src/main/java/org/apache/commons/collections4/collection/UnmodifiableBoundedCollection.java

@@ -52,6 +52,7 @@ public final class UnmodifiableBoundedCollection<E> extends AbstractCollectionDe
      * @param coll  the <code>BoundedCollection</code> to decorate, must not be null
      * @return a new unmodifiable bounded collection
      * @throws IllegalArgumentException if {@code coll} is {@code null}
+     * @since 4.0
      */
     public static <E> BoundedCollection<E> unmodifiableBoundedCollection(final BoundedCollection<E> coll) {
         return new UnmodifiableBoundedCollection<E>(coll);
@@ -67,6 +68,7 @@ public final class UnmodifiableBoundedCollection<E> extends AbstractCollectionDe
      * @param coll  the <code>BoundedCollection</code> to decorate, must not be null
      * @return a new unmodifiable bounded collection
      * @throws IllegalArgumentException if {@code coll} is {@code null}
+     * @since 4.0
      */
     @SuppressWarnings("unchecked")
     public static <E> BoundedCollection<E> unmodifiableBoundedCollection(Collection<? extends E> coll) {

src/main/java/org/apache/commons/collections4/collection/UnmodifiableCollection.java

@@ -49,6 +49,7 @@ public final class UnmodifiableCollection<E>
      * @param coll  the collection to decorate, must not be null
      * @return an unmodifiable collection
      * @throws IllegalArgumentException if collection is null
+     * @since 4.0
      */
     public static <T> Collection<T> unmodifiableCollection(final Collection<T> coll) {
         if (coll instanceof Unmodifiable) {