The compiler does not inform necessity to intercept exception

I am have simple programm that consist of 6 classes. I am declare an interface that have method witch can to throw an exception. But when I'm call this method in constructor without catching of that exception, I'am do not got compile error.

You can download source code fron here: http://arachnid.narod.ru/javabug/JavaBUG.zip

Whether there are for somebody suppositions, what I do incorrectly?