public static JavaToSqlTypeConverter javaToSqlConverter() {
    return JAVA_TO_SQL_CONVERTER;
  }
@Test
  public void shouldGetSqlTypeForAllJavaTypes() {
    SQL_TO_JAVA.inverse().forEach((java, sqlType) -> {
      assertThat(javaToSqlConverter().toSqlType(java), is(sqlType));
    });
  }