}

  @GwtIncompatible // ObjectArrays.concat(Object[], Object[], Class)
  public void testConcatWithMoreGeneralType() {
    CharSequence[] result = ObjectArrays.concat(new String[0], new String[0], CharSequence.class);
    assertEquals(CharSequence[].class, result.getClass());
  }

  public void testToArrayImpl1() {
    doTestToArrayImpl1(Lists.<Integer>newArrayList());