InputMismatchException GetMessage Returns Null

Working on chapter 10 of my book which covers exceptions and file I/O. The only part that does not work is line 40 where it is supposed to print getMessage(). It print's null instead of the more verbose error message.

import java.io.*;
import java.util.*;
import java.text.DecimalFormat;
public class SalesReport2
{
public static void main(String[] args)
{
String filename = "SalesData.txt";
int months = 0;

[Code] ....

temp.txt

123.33
asdf
549.85
dsaf
8456.23
21588.22
652.00

My output when using my test file.

ERROR: SalesData.txt does not exist.
Enter another filename: temp.txt
Nonnumeric data found in file: null
The invalid record will be skipped.
Nonnumeric data found in file: null
The invalid record will be skipped.
Number of months: 5
Total Sales: 31,369.63
Average Sales: 6,273.93

I then removed the try catch so that I could get a stacktrace

import java.io.*;
import java.util.*;
import java.text.DecimalFormat;
public class SalesReport2a
{
public static void main(String[] args)

[Code] ...

This was the output.

ERROR: SalesData.txt does not exist.
Enter another filename: temp.txt
Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Unknown Source)
at java.util.Scanner.next(Unknown Source)
at java.util.Scanner.nextDouble(Unknown Source)
at SalesReport2a.main(SalesReport2a.java:32)

I also pulled the copy of the code from the CD that came with the book and it's output is the same as my code.

The image in the book shows that the error should be more informative though.

what I get

Nonnumeric data found in file: null

vs

what I should get

Nonnumeric data found in file: For input string: "asdf"

Not sure why it isn't working.