Bug 211710 [Regression] Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview [01]
Description: Data of cascading parameters in the report extended from the library can not be selected from the drop-down list when preview. Build number: 2.2.2.v20071203-0630 Steps to reproduce: 1. New a Library with cascading parameters. 2. New a report and extend the cascading parameters from the library and preview. Expected result: Values can be selected from the drop-down list. Actual result: Values can not be selected from the drop-down list. Error log: N/A
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
{
				log.log( Level.WARNING, ex.getMessage( ), ex );
				executionContext.addException( ex );
			}
		}
		return iterator;
	}
	
	private IParameterDefnBase getParamDefnBaseByName( ParameterDefnBase param,
			String name )
	{
		ParameterDefnBase ret = null;
		if ( param instanceof ScalarParameterDefn
				&& name.equals( param.getName( ) ) )
		{
			ret = param;
		}
		else if ( param instanceof ParameterGroupDefn )
		{
			if ( name.equals( param.getName( ) ) )
			{
				ret = param;
			}
			else
			{
				Iterator iter = ( (ParameterGroupDefn) param ).getContents( )
						.iterator( );
				while ( iter.hasNext( ) )
				{
					ParameterDefnBase pBase = (ParameterDefnBase) iter.next( );