Class Reference from default package

Just a issues to ponder on..

I've two classes. One class is without package structure and other with package structure. Now if update the second class class to have reference to class without package structure, I'm not able to compile the class with package structure.

Is this a Compiler limitatoion.. ? Its looks so but I need to confirm..
Found a reference: http://bugs.sun.com/bugdatabase/view_bug.do;jsessionid=5a33c13c69c24bf0e9888042287?bug_id=4650921


What do you think about this..