BooleanConverter implements PropertyConverter<Boolean> { @Override public int hashCode(){ return getClass().hashCode(); }  @Override Boolean convert(String value, ConversionContext ctx); @Override boolean equals(Object o); @Override int hashCode();  }
@Test public void testHashCode() { BooleanConverter instance = new BooleanConverter(); assertThat(instance.hashCode()).isEqualTo(BooleanConverter.class.hashCode()); }