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
{
			if ( reportItem != null )
			{
				try
				{
					if ( value != null )
					{
						byte[] raw = null;
						try
						{
							raw = value.toString( ).getBytes(
									UnicodeUtil.SIGNATURE_UTF_8 );
						}
						catch ( UnsupportedEncodingException e )
						{
							assert false;
						}
						reportItem.deserialize( prop.getName( ),
								new ByteArrayInputStream( raw ) );
					}
					else
						reportItem.deserialize( prop.getName( ),
								new ByteArrayInputStream( new byte[0] ) );
				}
				catch ( ExtendedElementException e )
				{
					assert false;
				}
			}
			else