### Question:
BigDecimalPropertyHandler extends PropertyHandler<BigDecimal> { @Override public void addParameter(PreparedStatement ps, int paramIndex, BigDecimal param) throws SQLException { if (param == null) { ps.setNull(paramIndex, Types.DECIMAL); return; } ps.setBigDecimal(paramIndex, param); }  @Override BigDecimal convert(ResultSet rs,
                            String columnName,
                            Class<BigDecimal> clazz); @Override void addParameter(PreparedStatement ps,
                           int paramIndex,
                           BigDecimal param);  }### Answer:
@Test public void addParameter() { }