Failed to convert property value of type java.lang.String to required type ru.org.linux.topic.Topic for property topic; nested exception is java.lang.NumberFormatException: For input string: «» тема не задана
Failed to convert property value of type java.lang.String to required type ru.org.linux.topic.Topic for property topic; nested exception is java.lang.NumberFormatException: For input string: «» тема не задана