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/BirtViewerReportService.java
: scalarParamHandle.isMustMatch( );
		boolean concealValue = engineParam.isValueConcealed( );
		
		Collection selectionList = convertEngineParameterSelectionChoice( task
				.getSelectionList( name ) );
		ParameterDefinition param = new ParameterDefinition( name, pattern,
				displayFormat, displayName, helpText, promptText, dataType,
				controlType, hidden, allowNull, allowBlank, mustMatch,
				concealValue, group, selectionList );
		return param;
	}
	
	
	private static Collection convertEngineParameterSelectionChoice(
			Collection params )
	{
		if ( params == null )
			return Collections.EMPTY_LIST;
		List ret = new ArrayList( );
		for ( Iterator it = params.iterator( ); it.hasNext( ); )
		{
			IParameterSelectionChoice engineChoice = (IParameterSelectionChoice) it
					.next( );
			ParameterSelectionChoice paramChoice = new ParameterSelectionChoice(
					engineChoice.getLabel( ), engineChoice.getValue( ) );
			ret.add( paramChoice );
		}
		return ret;
	}
}