1 files changed, 3 insertions, 10 deletions
diff --git a/guava-testlib/src/com/google/common/collect/testing/testers/NavigableSetNavigationTester.java b/guava-testlib/src/com/google/common/collect/testing/testers/NavigableSetNavigationTester.java
index 8b056b4cb..354dd608d 100644
--- a/guava-testlib/src/com/google/common/collect/testing/testers/NavigableSetNavigationTester.java
+++ b/guava-testlib/src/com/google/common/collect/testing/testers/NavigableSetNavigationTester.java
@@ -20,6 +20,7 @@ import static com.google.common.collect.testing.features.CollectionFeature.SUPPO
 import static com.google.common.collect.testing.features.CollectionSize.ONE;
 import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
+import static org.junit.Assert.assertThrows;
 
 import com.google.common.annotations.GwtIncompatible;
 import com.google.common.collect.testing.Helpers;
@@ -128,11 +129,7 @@ public class NavigableSetNavigationTester<E> extends AbstractSetTester<E> {
 
   @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
   public void testPollFirstUnsupported() {
-    try {
-      navigableSet.pollFirst();
-      fail();
-    } catch (UnsupportedOperationException e) {
-    }
+    assertThrows(UnsupportedOperationException.class, () -> navigableSet.pollFirst());
   }
 
   @CollectionSize.Require(SEVERAL)
@@ -209,11 +206,7 @@ public class NavigableSetNavigationTester<E> extends AbstractSetTester<E> {
 
   @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
   public void testPollLastUnsupported() {
-    try {
-      navigableSet.pollLast();
-      fail();
-    } catch (UnsupportedOperationException e) {
-    }
+    assertThrows(UnsupportedOperationException.class, () -> navigableSet.pollLast());
   }
 
   @CollectionSize.Require(SEVERAL)