Bug 182670 ScriptedDataSet does not use the same classloader when ran for Parameters than when ran for the report
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
{
				ParameterGroupDefinition group = (ParameterGroupDefinition) o;
				ret.addAll( group.getParameters( ) );
			}
			else
				ret.add( o );
		}
		return ret;
	}
	/**
	 * Convert parameters in parameter group
	 * 
	 * @param scalarParameters
	 * @param group
	 * @return
	 */
	private static List convertParametersInGroup( Collection scalarParameters,
			ParameterGroupDefinition group )
	{
		if ( scalarParameters == null )
			return null;
		List ret = new ArrayList( );
		for ( Iterator it = scalarParameters.iterator( ); it.hasNext( ); )
		{
			IScalarParameterDefn engineParam = (IScalarParameterDefn) it.next( );
			ParameterDefinition param = convertScalarParameter( engineParam,
					group );
			ret.add( param );
		}
		return ret;