Bug 151381 [Smoke]The parameter didn't display in the web viewer
Description: Preview a parameter in the web viewer, it can't be previewed. Step to reproduce: 1. new a report and a parameter 2. drag it to the layout 3. preview it in the web viewer Actual result: the parameter is not displayed
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
&& odaDataTypeCode != Types.NULL )
		{
			throw new BirtException( pluginId,
					ResourceConstants.INVALID_TYPE,
					resourceBundle );
		}
		Class fieldClass = null;
		switch ( odaDataTypeCode )
		{
			case Types.CHAR :
				fieldClass = String.class;
				break;
			case Types.INTEGER :
				fieldClass = Integer.class;
				break;
			case Types.DOUBLE :
				fieldClass = Double.class;
				break;
			case Types.DECIMAL :
				fieldClass = BigDecimal.class;
				break;
			case Types.DATE :
				fieldClass = Date.class;
				break;
			case Types.TIME :
				fieldClass = Time.class;
				break;
			case Types.TIMESTAMP :
				fieldClass = Timestamp.class;
				break;