Bug 361443 Excel ODA
data/org.eclipse.birt.report.data.oda.excel/src/org/eclipse/birt/report/data/oda/excel/impl/ResultSet.java
}
		}
		this.wasNull = true;
		return null;
	}
	/**
	 * Transform a String value to a date value
	 *
	 * @param stringValue
	 *            String value
	 * @return Corresponding date value
	 * @throws OdaException
	 */
	private Date stringToDate(String stringValue) throws OdaException {
		if (stringValue != null && stringValue.length() > 0) {
			try{
				
				return new Date( Long.parseLong(stringValue) );
			} catch( Exception ex){
				throw new OdaException(Messages.getFormattedString(
						"invalid_date_value", new String[] { stringValue })); 
			}
		}
		this.wasNull = true;
		return null;
	}
	/**
	 * Transform a string to boolean value
	 *
	 * @param stringValue