import org.foederal.util.ui.messages.UserMessageCollector;
logText1 = "Abort script caused by errors.";
[...]
[... First part - e.g. create something ...]
if (UserMessageCollector.hasErrors())
{
	UserMessageCollector.addInfo (LIBRARY, self, null, "Script ", logText1);
	return;
}
[... Second part - e.g. create something with the result of the first part ...]