Bug 123035 Serialize primitive types, hashmaps and other Java classes not using Java serialization method
If you take a look at the serialized engine output, we frequently see java classes appearing. I see String class; I see PageHint class; I see Hashmap classes. All of these should be gone so that BIRT document is independent of any Java-based class serialization. DtE team will move primitive type serialization to BIRT.CORE, see 123034. Engine can use that.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/AbstractDataEngine.java
* queryExpressionIDs need to be stored in DocumentArchive.
	 */
	protected ArrayList queryExpressionIDs = new ArrayList( );
	/**
	 * the logger
	 */
	protected static Logger logger = Logger.getLogger( DteDataEngine.class
			.getName( ) );
	public void prepare( Report report, Map appContext )
	{
		ReportDesignHandle rptHandle = report.getReportDesign( );
		ModelDteApiAdapter adaptor = new ModelDteApiAdapter( context, context
				.getSharedScope( ) );
		
		List dataSourceList = rptHandle.getAllDataSources( );
		for ( int i = 0; i < dataSourceList.size( ); i++ )
		{
			DataSourceHandle dataSource = ( DataSourceHandle ) dataSourceList
					.get( i );
			try
			{
				dataEngine.defineDataSource( adaptor
						.createDataSourceDesign( dataSource ) );
			} catch ( BirtException be )
			{
				logger.log( Level.SEVERE, be.getMessage( ), be );
				context.addException( dataSource, be );
			}
		}