}
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Doubles.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Double> converter = Doubles.stringConverter();
    assertThat(converter.convert("1.0")).isEqualTo(1.0);
    assertThat(converter.convert("0.0")).isEqualTo(0.0);

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Ints.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Integer> converter = Ints.stringConverter();
    assertThat(converter.convert("1")).isEqualTo(1);
    assertThat(converter.convert("0")).isEqualTo(0);

    }
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Doubles.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Double> converter = Doubles.stringConverter();
    assertThat(converter.convert("1.0")).isEqualTo(1.0);
    assertThat(converter.convert("0.0")).isEqualTo(0.0);

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Longs.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Long> converter = Longs.stringConverter();
    assertThat(converter.convert("1")).isEqualTo(1L);
    assertThat(converter.convert("0")).isEqualTo(0L);

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Shorts.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Short> converter = Shorts.stringConverter();
    assertThat(converter.convert("1")).isEqualTo(1);
    assertThat(converter.convert("0")).isEqualTo(0);

  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Floats.class);
  }

  @GwtIncompatible // Float.toString returns different value in GWT.
  public void testStringConverter_convert() {
    Converter<String, Float> converter = Floats.stringConverter();
    assertThat(converter.convert("1.0")).isEqualTo(1.0f);
    assertThat(converter.convert("0.0")).isEqualTo(0.0f);

  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Ints.class);
  }

  public void testStringConverter_convert() {
    Converter<String, Integer> converter = Ints.stringConverter();
    assertThat(converter.convert("1")).isEqualTo(1);
    assertThat(converter.convert("0")).isEqualTo(0);

  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(Floats.class);
  }

  @GwtIncompatible // Float.toString returns different value in GWT.
  public void testStringConverter_convert() {
    Converter<String, Float> converter = Floats.stringConverter();
    assertThat(converter.convert("1.0")).isEqualTo(1.0f);
    assertThat(converter.convert("0.0")).isEqualTo(0.0f);