columnNames.add(new GWTColumn("jcr:createdBy",Messages.get("column.createdBy.label"),75));
columnNames.add(new GWTColumn("jcr:lastModified",Messages.get("label.lastModif"),100));
columnNames.add(new GWTColumn("jcr:lastModifiedBy",Messages.get("column.modifiedBy.label"),75));
final NodeColumnConfigList columnConfigList = new NodeColumnConfigList(columnNames);
columnConfigList.init();
final CheckBoxSelectionModel<GWTJahiaNode> sm = new CheckBoxSelectionModel<GWTJahiaNode>();
columnConfigList.add(0, new RowNumberer());
columnConfigList.add(1, sm.getColumn());
// data proxy
RpcProxy<PagingLoadResult<GWTJahiaNode>> privateProxy = new RpcProxy<PagingLoadResult<GWTJahiaNode>>() {
@Override
protected void load(Object gwtJahiaFolder, AsyncCallback<PagingLoadResult<GWTJahiaNode>> listAsyncCallback) {