}

  // A collection should essentially never be equal to a non-collection.
  @SuppressWarnings("UndefinedEquals")
  public void testEquals_notACollection() {
    // noinspection EqualsBetweenInconvertibleTypes
    assertFalse(
        "A Collection should never equal an object that is not a Collection.",
        collection.equals("huh?"));
  }

    <inspection_tool class="Convert2streamapi" enabled="false" level="INFORMATION" enabled_by_default="false" />
    <inspection_tool class="EqualsBetweenInconvertibleTypes" enabled="true" level="ERROR" enabled_by_default="true" />
    <inspection_tool class="FieldNamingConvention" enabled="true" level="ERROR" enabled_by_default="true">