} catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveIf_alwaysTrueUnsupported() {
    try {
      collection.removeIf(x -> true);
      fail("removeIf(x -> true) should throw " + "UnsupportedOperationException");
    } catch (UnsupportedOperationException expected) {
    }