Bug 137176 It takes unacceptable long time to render a report
Description: Get the attached report design, preview in report designer. It takes unacceptable long time to render a report, and users could not get the output finally. Even during the rending, the computer could not do anything else.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
reportDocument, pageNumber, locale, isEmbeddable, rtl ) );
		}
		renderTask.setRenderOption( setting );
		renderTask.setLocale( locale );
		
		try
		{
			if ( format.equalsIgnoreCase( ParameterAccessor.PARAM_FORMAT_PDF ) )
				renderTask.render( );
			else
			{
				renderTask.setPageNumber( pageNumber );
				renderTask.render( );
			}
		}
		catch ( BirtException e )
		{
			AxisFault fault = new AxisFault( );
			fault.setFaultCode( new QName(
					"ReportEngineService.renderReport( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;
		}
		catch ( Exception e )
		{
			AxisFault fault = new AxisFault( );
			fault.setFaultCode( new QName(
					"ReportEngineService.renderReport( )" ) ); 
			fault.setFaultString( e.getLocalizedMessage( ) );
			throw fault;