Bug 161219 Gantt chart with null datapoints fail to render
Create a dataset with two date columns, having some null date values Create a gantt chart Assign the dates to the gant series It fails to render and throw exception. Expected: null dates should be treated as: - 1 null date, 1 valid date ->one marker drawn, no line - 2 null dates -> skip rendering of datapoint If the decoration label is missing it should also not fail.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/util/CDateTime.java
/**
	 * Parses a value formatted as MM-dd-yyyy HH:mm:ss and attempts to create an
	 * instance of this object
	 * 
	 * @param sDateTimeValue
	 *            The value to be parsed
	 * @return An instance of the datetime value created
	 */
	public static CDateTime parse( String sDateTimeValue )
	{
		try
		{
			return new CDateTime( _sdf.parse( sDateTimeValue ) );
		}
		catch ( Exception ex )
		{
			return null;
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Object#toString()
	 */
	public final String toString( )
	{
		return _sdf.format( getTime( ) );
	}
}