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/presentation/aggregation/dialog/ParameterDialogFragment.java
if ( parameters != null )
		{
			Iterator iParameters = parameters.iterator( );
			while ( iParameters != null && iParameters.hasNext( ) )
			{
				Object parameter = iParameters.next( );
				if ( parameter == null )
				{
					continue;
				}
				IFragment fragment = null;
				if ( parameter instanceof ParameterGroupDefinition )
				{
					fragment = new ParameterGroupFragment(
							(ParameterGroupDefinition) parameter );
				}
				else if ( parameter instanceof ParameterDefinition )
				{
					ParameterDefinition scalarParameter = (ParameterDefinition) parameter;
					if ( !scalarParameter.isHidden( ) )
					{
						switch ( scalarParameter.getControlType( ) )
						{
							case ParameterDefinition.TEXT_BOX :
							{
								fragment = new TextBoxParameterFragment(
										scalarParameter );
								break;
							}
							case ParameterDefinition.LIST_BOX :