}
public static void showErrorMessage(String mainMessage, Throwable throwable) {
SafeHtmlBuilder sb = new SafeHtmlBuilder();
sb.appendEscaped("Details: ");
sb.appendEscaped(throwable.getMessage());
showAlert(mainMessage, sb.toSafeHtml().toString());
}
public static void showOKCancelConfirmBox(String mainMessage, String subMessage, final OKCancelHandler handler) {