Method checkElementNotNull

output/java_guava/1.4.18/ObjectArrays.java:260–266

(Object element, int index)

  // creation cost.

  @CanIgnoreReturnValue
  static Object checkElementNotNull(Object element, int index) {
    if (element == null) {
      throw new NullPointerException("at index " + index);
    }
    return element;
  }
}