Bug 158947 the error of the datetime type conversion
Description: Now we input "Jan 13, 2003 12:00 AM GMT0100" into the parameter as a default value. The time is not transformed base on the time zone "GMT0100". The time should be transformed. And the other form input e.g. "SUN Jan 13, 2003 12:00 AM GMT0100" should be identified correctly. Step to reproduce: 1. new a report and create a report parameter 2. choose the date type "DateTime" 3. input value "SUN Jan 13, 2003 12:00 AM GMT0100" as default value,ok to finish 4. error message appear 5. input value "SUN Jan 13, 2003 12:00 AM" and click ok Actuate result: the parameter value is still "01/13/2003 12:00:00 AM" Excepted result: the datetime value should be transformed base on the time zone.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
source.toString( ), "Date"
					},
					resourceBundle );
		}
	}
	/**
	 * Call org.eclipse.birt.core.format.DateFormatter
	 * 
	 * @param source
	 * @return
	 */
	private static String toString( Date source, ULocale locale )
	{
		DateFormatter df = null;
		
		df = (DateFormatter) ( dfMap.get( locale ) );
		if ( df == null )
		{
			synchronized ( dfMap )
			{
				df = (DateFormatter) ( dfMap.get( locale ) );
				if ( df == null )
				{
					df = new DateFormatter( locale );
					dfMap.put( locale, df );
				}
			}
		}
		return df.format( (Date) source );
	}