Empty Sms Message Body Breaks the Parser

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Using any google voice account, send a message with an empty body (not even 
spaces) to the account.
2. Connect to the account with google-voice-java.
3. Call the getSMSThreads() method in the Voice class.
4. Weep as you get a null pointer exception.

What is the expected output? What do you see instead?
I would expect to get an sms thread with a single sms that had no text in the 
body of the message.  I get a null pointer exception instead.

What version of the product are you using? On what operating system?
Changeset 137 on mac osx 10.6 and ubuntu linux.

Original issue reported on code.google.com by walt.jav...@gmail.com on 4 Mar 2011 at 11:03