1 files changed, 5 insertions, 4 deletions
diff --git a/guava/src/com/google/common/collect/ImmutableSortedAsList.java b/guava/src/com/google/common/collect/ImmutableSortedAsList.java
index 91f700ece..30f19a02e 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedAsList.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedAsList.java
@@ -18,7 +18,7 @@ import com.google.common.annotations.GwtCompatible;
 import com.google.common.annotations.GwtIncompatible;
 import java.util.Comparator;
 import java.util.Spliterator;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import javax.annotation.CheckForNull;
 
 /**
  * List returned by {@code ImmutableSortedSet.asList()} when the set isn't empty.
@@ -28,6 +28,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
  */
 @GwtCompatible(emulated = true)
 @SuppressWarnings("serial")
+@ElementTypesAreNonnullByDefault
 final class ImmutableSortedAsList<E> extends RegularImmutableAsList<E>
     implements SortedIterable<E> {
   ImmutableSortedAsList(ImmutableSortedSet<E> backingSet, ImmutableList<E> backingList) {
@@ -49,7 +50,7 @@ final class ImmutableSortedAsList<E> extends RegularImmutableAsList<E>
   @GwtIncompatible // ImmutableSortedSet.indexOf
   // TODO(cpovirk): consider manual binary search under GWT to preserve O(log N) lookup
   @Override
-  public int indexOf(@Nullable Object target) {
+  public int indexOf(@CheckForNull Object target) {
     int index = delegateCollection().indexOf(target);
 
     // TODO(kevinb): reconsider if it's really worth making feeble attempts at
@@ -62,12 +63,12 @@ final class ImmutableSortedAsList<E> extends RegularImmutableAsList<E>
 
   @GwtIncompatible // ImmutableSortedSet.indexOf
   @Override
-  public int lastIndexOf(@Nullable Object target) {
+  public int lastIndexOf(@CheckForNull Object target) {
     return indexOf(target);
   }
 
   @Override
-  public boolean contains(Object target) {
+  public boolean contains(@CheckForNull Object target) {
     // Necessary for ISS's with comparators inconsistent with equals.
     return indexOf(target) >= 0;
   }