//        assertThat(new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(date), is("2010/09/07 11:49:10"));
    //    }

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_SpecificPattern() throws Exception {
        final Date date = toDate("07/09/10 10:49:11", "dd/MM/yy ss:mm:HH", Locale.JAPAN);
        assertThat(new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(date), is("2010/09/07 11:49:10"));
    }

 * <td rowspan="4">Standard formats of {@link DateFormat}</td>
 * <td>{@link DateFormat#SHORT} format</td>
 * <td>{@literal yy/MM/dd}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#MEDIUM} format</td>
 * <td>{@literal yyyy/MM/dd}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#LONG} format</td>
 * <td>{@literal yyyy/MM/dd}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#FULL} format</td>
 * <td>{@literal yyyy'nen'M'gatsu'd'nichi'}</td>

 * <td>{@link DateFormat#SHORT} format</td>
 * <td>{@literal yy/MM/dd H:mm}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#MEDIUM} format</td>
 * <td>{@literal yyyy/MM/dd H:mm:ss}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#LONG} format</td>
 * <td>{@literal yyyy/MM/dd H:mm:ss z}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#FULL} format</td>

 *
 * <dl>
 *   <dt>The IPv4 loopback address, {@code "127.0.0.1"}.
 *   <dd>{@code 7f 00 00 01}
 *   <dt>The IPv6 loopback address, {@code "::1"}.
 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01}
 *   <dt>From the IPv6 reserved documentation prefix ({@code 2001:db8::/32}), {@code "2001:db8::1"}.
 *   <dd>{@code 20 01 0d b8 00 00 00 00 00 00 00 00 00 00 00 01}

Integer nullValue = IntegerConversionUtil.toInteger(null);     // Returns null
Boolean flag = BooleanConversionUtil.toBoolean("true");        // Returns true
Date date = DateConversionUtil.toDate("2023-12-25", "yyyy-MM-dd");

// Primitive conversions with default values
int primitiveInt = IntegerConversionUtil.toPrimitiveInt(value, "0");  // Default to 0 if null
```

### Collection Utilities with Java 21 Support
```java

    <function-signature>java.util.Date parseDate(java.lang.String, java.lang.String)</function-signature>
    <example>
      ${fe:parseDate(doc.tstamp, "yyyy-MM-dd HH:mm:ss")}
    </example>
  </function>

  <function>
    <description>
      Returns formatted duration from a given value.
    </description>
    <name>formatDuration</name>

 *
 * <dl>
 *   <dt>The IPv4 loopback address, {@code "127.0.0.1"}.
 *   <dd>{@code 7f 00 00 01}
 *   <dt>The IPv6 loopback address, {@code "::1"}.
 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01}
 *   <dt>From the IPv6 reserved documentation prefix ({@code 2001:db8::/32}), {@code "2001:db8::1"}.
 *   <dd>{@code 20 01 0d b8 00 00 00 00 00 00 00 00 00 00 00 01}

 * so you can specify multiple options using method chaining.
 * </p>
 *
 * <pre>
 * copyBeanToBean(srcBean, destBean, excludeNull().dateConverter("date", "MM/dd"));
 * </pre>
 *
 * @author koichik
 */
public abstract class CopyOptionsUtil {

    /**
     * Do not instantiate.
     */
    protected CopyOptionsUtil() {
    }

    /**

                                                    </td>
                                                    <td>${f:h(data.size)}</td>
                                                    <td>${fe:formatDate(data.lastModified, 'yyyy-MM-dd HH:mm:ss')}</td>
                                                </c:if>
                                                <c:if test="${data.directory.booleanValue()}">

        final MyBean src = new MyBean();
        src.aaa = "2008/01/17";
        final MyBean2 dest = new MyBean2();
        BeanUtil.copyBeanToBean(src, dest, converter(new DateConverter("yyyy/MM/dd")));
        System.out.println(dest.aaa);
        assertThat(dest.aaa, is(notNullValue()));
    }

    /**
     * @throws Exception
     */
    @Test