[chuck-users] NullPointerException

[eduard aylon]

Hi list,

I am trying to make a list of objects where each object has  
references to other objects, but I am not succeeding and I get a  
NullPointerException. The piece of code below may represent what I am  
trying to do.

class object
{
     Std.rand2f(0., 1.) => float f_;
}

class Item extends object
{
     2 => int size_;
     object item_[size_];

     fun void print()
     {
         for( 0=>int i; i<size_; i++ )
             <<< "item [",i,"]", item_[i].f_>>>;
     }
     <<<"----------------------------------------------">>>;
     <<<"calling print from within class definition">>>;
     <<<"----------------------------------------------">>>;
     print();
}

4 => int n;
Item l[n];

// no problems up until here

<<<"----------------------------------------------">>>;
<<<"calling print from outside class definition">>>;
<<<"----------------------------------------------">>>;

for( 0=>int i; i<n; i++ )
     l[i].print();   //offending line


After execution I get:
[chuck](VM): NullPointerException: shred[id=1:test.ck], PC=[37]

Excuse me if it's too obvious, but I can't see why it rises the null  
pointer exception. Any ideas?

thanks in advance,

eduard