@@ -0,0 +1,197 @@
+package org.egordorichev.lasttry.mod;%0A%0Apublic class ModException extends Exception %7B%0A%09public ModException() %7B%0A%09%09this(%22%22);%0A%09%7D%0A%0A%09public ModException(String message) %7B%0A        super(message);%0A    %7D%0A%7D%0A

Create ModException.java