Method isNull

corpus/java/training/guava/base/Predicates.java:71–74

Returns a predicate that evaluates to true if the object reference being tested is null.

()

   * null.
   */
  @GwtCompatible(serializable = true)
  public static <T> Predicate<T> isNull() {
    return ObjectPredicate.IS_NULL.withNarrowedType();
  }

  /**
   * Returns a predicate that evaluates to {@code true} if the object reference being tested is not