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/util/ModelUtil.java
destination.setProperty(
					IOdaExtendableElementModel.EXTENSION_ID_PROP, extensionId );
		}
		else
		if ( source instanceof IExtendedItemModel )
		{
			String extensionId = (String) source.getProperty( sourceModule,
					IExtendedItemModel.EXTENSION_NAME_PROP );
			destination.setProperty( IExtendedItemModel.EXTENSION_NAME_PROP,
					extensionId );
		}
		else
		{
			assert false;
		}
	}
	/**
	 * Clone the structure list, a list value contains a list of
	 * <code>IStructure</code>.
	 * 
	 * @param list
	 *            The structure list to be cloned.
	 * @return The cloned structure list.
	 */
	private static ArrayList cloneStructList( List list )
	{
		if ( list == null )
			return null;
		ArrayList returnList = new ArrayList( );
		for ( int i = 0; i < list.size( ); i++ )