Bug 168148 [regression]Table with chart from library fails to preview.[01][0001]
Description: Table with chart from library fails to preview. Build number:2.1.2.v20061215 and 2.2.0.v20061213 Steps to reproduce: 1.Create a library, create a sample DB data source and data set: select * from orders 2.Insert a tabel to the library, bind data set to the table 3.Insert a group for the tabel ,group by "row["OrderDate"]", Interval: Year, Range:1 4.Drag a chart into 3rd cell on group row, bar chart, go to "Select Data" tab , bind data set, X Series:row["OrderDate"], Y Series:row["OrderNumger"]; click "Finish" button 5.Create a new report, use the library 6.Drag the table in the library to the report. 7.Preview in html. Expected Result: Report content displays without errors. Actual result: Error happened while running the report.(same for 2.1.2 and 2.2.0) Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/extension/PeerExtensibilityProvider.java
continue;
			String propName = propDefn.getName( );
			if ( !hasOwnModel( propName ) )
				continue;
			Object value = extensionPropValues.get( propName );
			if ( value == null )
			{
				
				ExtendedItem parent = (ExtendedItem) element
						.getExtendsElement( );
				while ( parent != null )
				{
					
					
					PeerExtensibilityProvider parentProvider = parent
							.getExtensibilityProvider( );
					HashMap propValues = parentProvider.extensionPropValues;
					value = propValues.get( propName );
					if ( value == null )
					{
						if ( parentProvider.reportItem != null )
							value = parentProvider.reportItem
									.serialize( propName );
					}
					if ( value != null )
						break;
					parent = (ExtendedItem) parent.getExtendsElement( );
				}
			}
			else