Elementary session problem

This is basic - the Hello World tutorial writes a 0 bytes file and throwns
a BSF info: null at line: 0 column: columnNo error.

Looks like the session is out of scope.

The following is a variant which tries to catch the error.
---------------------------------------------------------------

Starting scraper.
Running scraping session: Hello World
Processing scripts before scraping session begins.
Scraping file: "File from Hello World"
File from Hello World: Processing scripts before a file is scraped.
File from Hello World: URL is: http://www.screen-scraper.com/tutorial/basic_form.php?text_string=xy.
File from Hello World: Scraping file with URL: http://www.screen-scraper.com/tutorial/basic_form.php?text_string=xy
File from Hello World: Sending request.
File from Hello World: Processing scripts before all pattern applications.
File from Hello World: Extracting data for pattern "null"
File from Hello World: The following data elements were found:
null--DataRecord 0:
MYVAR=xy
File from Hello World: Processing scripts after a pattern application.
File from Hello World: Processing scripts after all pattern applications.
Processing script: "Helloout"
Writing data to a file.
File from Hello World: An error occurred while processing the script: Helloout
File from Hello World: The error message was: BeanShell script error: Sourced file:

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

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

// Write out the data to the file.
out.write( dataRecord.get( "MYVAR" ) + "\t" );
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() );
}; > : Attempt to invoke method: get() on undefined variable or class name: dataRecord : at Line: 3 : in file:

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

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

// Write out the data to the file.
out.write( dataRecord.get( "MYVAR" ) + "\t" );
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() );
}; > : try { BSF info: null at line: 0 column: columnNo
File from Hello World: Processing scripts after a file is scraped.
Processing scripts after scraping session has ended.
Scraping session finished.