Exception in thread "main" java.lang.StackOverflowError

[chris.bos]

As the thread says i have a problem in netbeans.It says "Exception in thread "main" java.lang.StackOverflowError".
it is printed after a recursion method run and for "x" value exp. lower than -100 and higher than +200.Anyone have any idea?
Here is the method.

static void pyrmin(int i,int j,int x,int z)
 {           
       if (i>0)
    {
            System.out.print("a");
            i--;
    }
       else
    {
            System.out.print("b");
            j++;
    }
       if (j>z)
       {
           i=Math.abs(x)-j;
           j=1;
           z++;
           System.out.println( );        
       }
       if (z<=Math.abs(x))
           pyrmin(i,j,x,z);
 }

[Norm]

What is printed out on the console when you execute the program?

Add some debugging printlns to show the values of all the variables passed to the method.