Anyone seen this error?

All, 
Has anyone ever seen the following kid of error before? 

java.lang.NoSuchMethodError: 
javax.xml.soap.SOAPMessage.getSOAPBody()Ljavax/xml/soap/SOAPBody; 

I get it after I perform the following code snippet:

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// Edit to provide your own username and password
String username = args[0];
String password = args[1];
char[] c = password.toCharArray();
PasswordAuthentication passwdAuth = 
new PasswordAuthentication( username, c );
Set creds = new HashSet();
creds.add( passwdAuth );
connection.setCredentials( creds );
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