package datability;

import java.sql.Connection;

public class Assert {
    public static <T> T notNull(T ref, String errorMsg) {
        if (ref == null) {
            throw new IllegalArgumentException(errorMsg);
        }

        return ref;
    }
}

@@ -65,16 +65,47 @@
 ssert %7B%0A
+%0A    private Assert() %7B%0A    %7D%0A%0A
     publ

Make `Assert` not instantiable