Method failIfNullOrEmpty

src/main/java/org/assertj/core/internal/Maps.java:527–530

(MapEntry<? extends K, ? extends V>[] entries)

  }

  private static <K, V> void failIfNullOrEmpty(MapEntry<? extends K, ? extends V>[] entries) {
	failIfNull(entries);
	failIfEmpty(entries);
  }

  private static <K> void failIfNull(K[] keys) {
	if (keys == null) throw new NullPointerException("The array of keys to look for should not be null");