t.addItem(renderItems(report.errors, "images/error.gif", constants.Errors()));
t.addItem(renderItems(report.warnings, "images/warning.gif", constants.Warnings()));
t.addItem(renderItems(report.notes, "images/note.gif", constants.Notes()));
t.addItem(renderFactUsage(report.factUsages));
t.addTreeListener(swapTitleWithUserObject());
layout.addRow(t);
initWidget(layout);
}