}
    assertTrue(builder.build() instanceof SparseImmutableTable);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  @Override
  public void testNullPointerInstance() {
    if (isAndroid()) {
      /*
       * NPT fails under the old versions of Android we test under because it performs reflection on
       * ImmutableTable, which declares static methods that refer to Collector, which is unavailable

    }
    assertTrue(builder.build() instanceof SparseImmutableTable);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  @Override
  public void testNullPointerInstance() {
    if (isAndroid()) {
      /*
       * NPT fails under the old versions of Android we test under because it performs reflection on
       * ImmutableTable, which declares static methods that refer to Collector, which is unavailable