Bug 141255 No error for the incompatible parameter value
Steps to reproduce: 1.New a decimal parameter, set the default value to "aaa" 2.Preview the report by "Preview" tab Expected result: Error to say the incompatible parameter value Actual result: Parameter request page keeps poping up till input the decimal value Note: if preview in Web Viewer, error will be thrown out, but no exception description.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtCacheParameterActionHandler.java
handle.saveAs( configFileName );
			handle.close( );
			handleUpdate( );
		}
		catch ( Exception e )
		{
			AxisFault fault = new AxisFault( );
			fault.setFaultCode( new QName(
					"BirtCacheParameterActionHandler.__execute( )" ) ); 
			fault.setFaultReason( e.getLocalizedMessage( ) );
			throw fault;
		}
	}
	protected void handleUpdate( )
	{
		Data data = new Data( );
		data.setConfirmation( "Parameter value saved." ); 
		UpdateData updateData = new UpdateData( );
		updateData.setTarget( "birtParameterDialog" ); 
		updateData.setData( data );
		Update update = new Update( );
		update.setUpdateData( updateData );
		response.setUpdate( new Update[]{update} );
	}
	protected IViewerReportService getReportService( )
	{
		return null;
	}
}