Bug 212375 [Automation][Regression]Exception occurs when preview a outputParams["xxx"]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedOdaDSQuery.java
implements	IPreparedQuery
{
	/**
	 * @param dataEngine
	 * @param queryDefn
	 * @param dataSetDesign
	 * @throws DataException
	 */
	PreparedOdaDSQuery( DataEngineImpl dataEngine, IQueryDefinition queryDefn,
			IBaseDataSetDesign dataSetDesign, Map appContext )
			throws DataException
	{
		super( dataEngine, queryDefn, dataSetDesign, appContext != null
				? appContext: new HashMap( ) );
		Object[] params = {
				dataEngine, queryDefn, dataSetDesign, appContext
		};
		logger.entering( PreparedOdaDSQuery.class.getName( ),
				"PreparedOdaDSQuery",
				params );
		logger.exiting( PreparedOdaDSQuery.class.getName( ),
				"PreparedOdaDSQuery" );
	}