Bug 299536 API refers to non-API type UIResourceFilterDescription
I20100112 CreateGroupOperation and CreateFolderOperation have constructors that require a UIResourceFilterDescription[]. However this is a non-API type, so clients can't reference it without using internals. Either the constructor should be removed or something like UIResourceFilterDescription needs to be promoted to API. Also, shouldn't CreateFolderOperation be renamed CreateVirtualFolderOperation?
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceFilterGroup.java
((Integer) index).intValue());
				}
				if (getColumnID(columnIndex).equals(FilterTypeUtil.MODE)) {
					Object index = FilterTypeUtil.getValue(
							(FilterCopy) element, FilterTypeUtil.MODE);
					return util.getImage(FilterTypeUtil.MODE, ((Integer) index)
							.intValue());
				}
				if (getColumnID(columnIndex).equals(FilterTypeUtil.INHERITABLE)) {
					Object condition = FilterTypeUtil.getValue(
							(FilterCopy) element, FilterTypeUtil.INHERITABLE);
					if (((Boolean) condition).booleanValue())
						return checkIcon;
				}
			}
			return null;
		}
		public String getColumnText(Object element, int columnIndex) {
			FilterCopy filter = ((FilterCopy) element);
			String column = getColumnID(columnIndex);
			return getValue(filter, column);
		}
		private String getValue(FilterCopy filter, String column) {
			if (column.equals(FilterTypeUtil.ID)) {
				String id = filter.getId();
				IFilterMatcherDescriptor descriptor = FilterTypeUtil.getDescriptor(id);
				if (descriptor != null)
					return descriptor.getName();
			}
			if (column.equals(FilterTypeUtil.MODE)) {