Name: asR10013 Date: 04/26/2000



    The following code demonstrates unexpeted behavior of method
PrinterJob.print(). As a result nothing is printed on the paper.

--------------------- SimplePrint.java -------------------------------
import java.awt.*;
import java.awt.print.*;

public class SimplePrint implements Printable {
  private static Font fnt = new Font("Helvetica",Font.PLAIN,24);
    
  public static void main(String[] args) {
    // Get a PrinterJob
    PrinterJob job = PrinterJob.getPrinterJob();
    // Specify the Printable is an instance of SimplePrint
    job.setPrintable(new SimplePrint());

    try { job.print(); }
    catch (Exception e) { /* handle exception */
System.out.println(e+" "+e.getMessage());
e.printStackTrace();
    }
    System.exit(0);
  }

  public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException {
    if (pageIndex >= 2) return Printable.NO_SUCH_PAGE;
    g.setFont(fnt);
    g.setColor(Color.green);
    g.drawString("Page " + (pageIndex+1), 100, 100);
    return Printable.PAGE_EXISTS;
  }
}
-------------------------- output ------------------------------------
$ java -version
java version "1.3.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0beta-b01)
Classic VM (build 1.3.0beta-b01, green threads, nojit)
$ java SimplePrint
java.lang.NullPointerException null
java.lang.NullPointerException
        at java.lang.Runtime.exec(Runtime.java:536)
        at java.lang.Runtime.exec(Runtime.java:477)
        at java.lang.Runtime.exec(Runtime.java:443)
        at sun.awt.motif.PSPrinterJob$PrinterSpooler.run(PSPrinterJob.java:673)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.awt.motif.PSPrinterJob.endDoc(PSPrinterJob.java:718)
        at sun.java2d.RasterPrinterJob.print(RasterPrinterJob.java:355)
        at SimplePrint.main(SimplePrint.java:26)
----------------------------------------------------------------------
    
    The same code works fine under Solaris java version "1.3.0rc3" and
under Linux java version "1.2.2"

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