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
IPropertyDefn propDefn = super.getPropertyDefn( propName );
		if ( propDefn == null )
		{
			PeerExtensionElementDefn extDefn = (PeerExtensionElementDefn) getExtDefn( );
			IPropertyDefinition[] extProps = getExtensionModelPropertyDefns( );
			if ( extProps != null )
			{
				for ( int i = 0; i < extProps.length; i++ )
				{
					if ( propName.equalsIgnoreCase( extProps[i].getName( ) ) )
					{
						return new ExtensionModelPropertyDefn( extProps[i],
								extDefn.getReportItemFactory( ).getMessages( ) );
					}
				}
			}
		}
		return propDefn;
	}
	/**
	 * Gets all the extension model properties defined by
	 * <code>IReportItem</code>.
	 * 
	 * @return the extension model properties, null if extended element is null
	 */
	private IPropertyDefinition[] getExtensionModelPropertyDefns( )
	{
		if ( reportItem == null )
			return null;
		return reportItem.getPropertyDefinitions( );