--- old/test/jdk/java/util/Optional/Basic.java	2018-04-13 23:11:35.032513429 -0700
+++ new/test/jdk/java/util/Optional/Basic.java	2018-04-13 23:11:34.748487256 -0700
@@ -33,6 +33,7 @@
 import java.util.NoSuchElementException;
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.function.Predicate;
 
 import static java.util.stream.Collectors.toList;
 
@@ -52,6 +53,7 @@
         assertFalse(empty.equals("unexpected"));
 
         assertFalse(empty.isPresent());
+        assertTrue(empty.isEmpty());
         assertEquals(empty.hashCode(), 0);
         assertEquals(empty.orElse("x"), "x");
         assertEquals(empty.orElseGet(() -> "y"), "y");
@@ -200,4 +202,15 @@
     public void testStreamPresent() {
         assertEquals(Optional.of("xyzzy").stream().collect(toList()), List.of("xyzzy"));
     }
+
+    @Test(groups = "unit")
+    public void testIsEmpty() {
+        var integerList = List.of(1,2,3,4,5);
+        Predicate<Integer> isPositiveNumber =  (x -> x > 0);
+        Predicate<Integer> isNegativeNumber = (x -> x < 0);
+        Optional<Integer> positiveNumber = integerList.stream().filter(isPositiveNumber).findAny();
+        Optional<Integer> negativeNumber = integerList.stream().filter(isNegativeNumber).findAny();
+        assertFalse(positiveNumber.isEmpty());
+        assertTrue(negativeNumber.isEmpty());
+    }
 }