Won't write output - but makes file

Hi,

I've just downloaded and started to use this program on Ubuntu Gutsy, and after following tutorials 1-3 I can pull the data result sets and have the Java example (and slightly modifed) script make the file but the files always come up empty and my log file shows a error after creating the file:

here is the output from the Hello World example on tutorial 1:

An error occurred while processing the script: Java Extracted Data
The error message was: The application script threw an exception: java.lang.NullPointerException BSF info: null at line: 0 column: columnNo

on the second instance I get this error :

Writing data to a file.
An error occurred while processing the script: wellness output
The error message was: Attempt to invoke method: get() on undefined variable or class name: dataRecord : at Line: 3.

here is the modified Java which I am using

FileWriter out = null;

try
{
session.log( "Writing data to a file." );

// Open up the file to be appended to.
out = new FileWriter( "wellness.txt", true );

// Write out the data to the file.
out.write( dataRecord.get( "First" ) + "\t" );
out.write( dataRecord.get( "Last" ) + "\t" );
out.write( dataRecord.get( "Company" ) + "\t" );
out.write( dataRecord.get( "Address" ) + "\t" );
out.write( dataRecord.get( "City" ) );
out.write( "\n" );

// Close up the file.
out.close();
}
catch( Exception e )
{
session.log( "An error occurred while writing the data to a file: " + e.getMessage() );
}

When I click on the "apply pattern to scraped data" where this script is added at the end (as After Pattern is Run) I get 5 results show up in the data set window.

where am I going wrong in geting these to output to my text file?