--- a/jdk/src/share/classes/java/util/Objects.java Mon May 06 14:17:59 2013 -0700
+++ b/jdk/src/share/classes/java/util/Objects.java Mon May 06 20:54:42 2013 -0700
@@ -226,4 +226,40 @@
throw new NullPointerException(message);
return obj;
}
+
+ /**
+ * Returns {@code true} if the provided reference is {@code null} otherwise
+ * returns {@code false}.
+ *
+ * @apiNote This method exists to be used as a
+ * {@link java.util.function.Predicate}, {@code filter(Objects::isNull)}
+ *
+ * @param obj a reference to be checked against {@code null}
+ * @return {@code true} if the provided reference is {@code null} otherwise
+ * {@code false}
+ *
+ * @see java.util.function.Predicate
+ * @since 1.8
+ */
+ public static boolean isNull(Object obj) {
+ return obj == null;
+ }
+
+ /**
+ * Returns {@code true} if the provided reference is non-{@code null}
+ * otherwise returns {@code false}.
+ *
+ * @apiNote This method exists to be used as a
+ * {@link java.util.function.Predicate}, {@code filter(Objects::nonNull)}
+ *
+ * @param obj a reference to be checked against {@code null}
+ * @return {@code true} if the provided reference is non-{@code null}
+ * otherwise {@code false}
+ *
+ * @see java.util.function.Predicate
+ * @since 1.8
+ */
+ public static boolean nonNull(Object obj) {
+ return obj != null;
+ }
}