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/DataGenerationEngine.java
queryID.subqueryIDs.add( qid );
		}
		Iterator grpIter = query.getGroups( ).iterator( );
		while ( grpIter.hasNext( ) )
		{
			IGroupDefinition group = (IGroupDefinition) grpIter.next( );
			QueryID groupID = new QueryID( );
			addIDToExpression( groupID.beforeExpressionIDs, group
					.getBeforeExpressions( ).iterator( ) );
			addIDToExpression( groupID.afterExpressionIDs, group
					.getAfterExpressions( ).iterator( ) );
			addIDToExpression( groupID.rowExpressionIDs, group
					.getRowExpressions( ).iterator( ) );
			Iterator grpSubIter = group.getSubqueries( ).iterator( );
			while ( grpSubIter.hasNext( ) )
			{
				ISubqueryDefinition grpSubquery = (ISubqueryDefinition) grpSubIter
						.next( );
				QueryID qid = getQueryIDs( grpSubquery );
				groupID.subqueryIDs.add( qid );
			}
			queryID.groupIDs.add( groupID );
		}
		return queryID;
	}
	private void addIDToExpression( Collection idArray, Iterator iter )
	{
		while ( iter.hasNext( ) )
		{
			IBaseExpression expr = (IBaseExpression) iter.next( );