Bug 130688 ULocal unsupported(Data)
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
return new Date( ( (Date) source ).getTime( ) );
		}
		else if ( source instanceof String )
		{
			return toDate( (String) source );
		}
		else
		{
			throw new BirtException( pluginId,
					ResourceConstants.CONVERT_FAILS,
					new Object[]{
							source.toString( ), "Date"
					},
					resourceBundle );
		}
	}
	/**
	 * convert String with the specified locale to java.util.Date
	 * 
	 * @param source
	 *            the String to be convert
	 * @param locate
	 * 			  the locate of the string
	 * @return result Date
	 */
	public static Date toDate( String source, Locale locale )
			throws BirtException
	{
		if ( source == null )
			return null;