Bug 148611 The edit parameter dialog hang up in my case.
Reproduce: The attachment include a library and a report. 1. Put the library file under the resource folder, "D:/Actuate/BIRTs/200606260630/eclipse/plugins/org.eclipse.birt.report.designer.ui_2.1.0.N20060624-0630/resources/" in my application. 2. Open the report, preview in the embedded viewer. 3. The Edit parameter dialog hang up. (Notice: it is the extened "dynamic" parameter that cause the problem. My CPU reaches 100% ocuppation when rendering the dialog, while when I end up closing the dummy dialog, CPU doesn't seem to be released, still 100%. )
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtGetCascadeParameterActionHandler.java
List selectionList = new ArrayList( );
		Collection list = getReportService( )
				.getSelectionListForCascadingGroup( design, groupName,
						groupKeys, options );
		if ( list != null && list.size( ) > 0 )
		{
			
			ScalarParameterHandle parameterHandle = (ScalarParameterHandle) attrBean
					.findParameter( paramName );
			Iterator iList = list.iterator( );
			int index = 0;
			while ( iList != null && iList.hasNext( ) )
			{
				ParameterSelectionChoice item = (ParameterSelectionChoice) iList
						.next( );
				if ( item != null && item.getValue( ) != null )
				{
					SelectItemChoice selectItemChoice = new SelectItemChoice( );
					Object value = item.getValue( );
					String label = item.getLabel( );
					if ( value == null )
						continue;
					if ( label == null || label.length( ) <= 0 )
					{
						
						
						
						label = ParameterValidationUtil.getDisplayValue( null,
								parameterHandle.getPattern( ), value, attrBean
										.getLocale( ) );