diff options
Diffstat (limited to 'guava/src/com/google/common/collect/ConcurrentHashMultiset.java')
| -rw-r--r-- | guava/src/com/google/common/collect/ConcurrentHashMultiset.java | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/guava/src/com/google/common/collect/ConcurrentHashMultiset.java b/guava/src/com/google/common/collect/ConcurrentHashMultiset.java index 723ab0696..a84e3cee7 100644 --- a/guava/src/com/google/common/collect/ConcurrentHashMultiset.java +++ b/guava/src/com/google/common/collect/ConcurrentHashMultiset.java @@ -20,6 +20,7 @@ import static com.google.common.base.Preconditions.checkArgument; import static com.google.common.base.Preconditions.checkNotNull; import static com.google.common.base.Preconditions.checkState; import static com.google.common.collect.CollectPreconditions.checkNonnegative; +import static java.util.Objects.requireNonNull; import com.google.common.annotations.GwtIncompatible; import com.google.common.annotations.J2ktIncompatible; @@ -599,7 +600,7 @@ public final class ConcurrentHashMultiset<E> extends AbstractMultiset<E> impleme stream.defaultReadObject(); @SuppressWarnings("unchecked") // reading data stored by writeObject ConcurrentMap<E, Integer> deserializedCountMap = - (ConcurrentMap<E, Integer>) stream.readObject(); + (ConcurrentMap<E, Integer>) requireNonNull(stream.readObject()); FieldSettersHolder.COUNT_MAP_FIELD_SETTER.set(this, deserializedCountMap); } |