Java ScriptContext save output to a file

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

public class Main {

  public static void main(String[] args) {
    // Get the Nashorn engine
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("JavaScript");

    // Print the absolute path of the output file
    File outputFile = new File("jsoutput.txt");
    System.out.println("Script output will be written to " + outputFile.getAbsolutePath());

    try (FileWriter writer = new FileWriter(outputFile)) {
      // Set a custom output writer for the engine
      ScriptContext defaultCtx = engine.getContext();
      defaultCtx.setWriter(writer);/*  w w w. j  a  v a2 s . c o  m*/

      // Execute a script
      String script = "print('Hello custom output writer')";
      engine.eval(script);
    } catch (IOException | ScriptException e) {
      e.printStackTrace();
    }
  }
}