🚀 go-pugleaf

Vladimir Olenin <keenonjava@collegemail.com> wrote:

>     Data d = B.getData();  // d == null, though d.field1 != null,
> d.field2 != null, etc
> 
> Is that normal or what? Thanks beforehand,

No, it is not normal, and not possible, according to the Java Language 
Specification.  If (d == null), then the expression (d.field1) does 
not have any meaning.  If the program tries to evaluate it, it will 
throw a NullPointerException

If you post the code that led you to believe this, preferably as a 
complete, minimal, working example, it will make it possible for 
someone to help you with your problem.  Actually, my experience has 
been that trying to create such an example usually results in figuring 
out the problem.

-- 
Regards,

John P. McGrath
<mcgrath@enter.net>
<jpm@nscs.fast.net>