FULL PRODUCT VERSION :
java version "1.6.0_18"
Java(TM) SE Runtime Environment (build 1.6.0_18-b07)
Java HotSpot(TM) Server VM (build 16.0-b13, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Linux XXX 2.6.28.18 #1 SMP Sat Feb 20 21:26:20 CET 2010 i686 GNU/Linux

EXTRA RELEVANT SYSTEM CONFIGURATION :
nothing special

A DESCRIPTION OF THE PROBLEM :
Implementations of Printable that do not initialize loop-counters within the
print()-method give unexpected results, e.g. no printing is done.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
see source

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
two pages with 3 lines of text
ACTUAL -
one page with three lines of text, one empty page

ERROR MESSAGES/STACK TRACES THAT OCCUR :
no error message, no exceptions

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package de.notano.learning;

import java.awt.*;
import java.awt.print.*;

/**
 * Implementations of Printable that does not init loop-counters within the
 * print()-method give unexpected results, e.g. no printing is done.
 *
 * EXAMPLE: Why this application prints one page like
 *
 * WorkingPrintable line 0
 * WorkingPrintable line 1
 * WorkingPrintable line 2
 *
 * and one EMPTY page, while it shows the following lines at System.err:
 *
 * printed line 0 failing?
 * printed line 1 failing?
 * printed line 2 failing?
 *
 *
 * used environment:
 *
 * jdk 1.6 rev 17
 * ubuntu 9.04
 * standard desktop pc
 *
 *
 *
 * any answers are welcome to ###@###.###.
 *
 * sincerely yours,
 *
 * Markus
 */
public class PrintProblem {

public static class WorkingPrintable implements Printable {

private int loopCounter;
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {

if(pageIndex>0) {
return NO_SUCH_PAGE;
}
loopCounter = 0; // missing in FailingPrintable !!!
Graphics2D g2d = (Graphics2D) graphics;
g2d.translate(pageFormat.getImageableX(),pageFormat.getImageableY());

for(;loopCounter<3;loopCounter++) {
g2d.drawString(getClass().getSimpleName()+" line "+loopCounter,100,100+loopCounter*15);
}

return PAGE_EXISTS;
}

}


public static class FailingPrintable implements Printable {

private int loopCounter = 0; // done in method print() in WorkingPrintable

@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {

if(pageIndex>0) {
return NO_SUCH_PAGE;
}

Graphics2D g2d = (Graphics2D) graphics;
g2d.translate(pageFormat.getImageableX(),pageFormat.getImageableY());

for(;loopCounter<3;loopCounter++) {
g2d.drawString(getClass().getSimpleName()+" line "+loopCounter,100,100+loopCounter*15);
System.err.println("printed line "+loopCounter+" failing?");
}

return PAGE_EXISTS;
}
}

public static void test(String[] args) { // e.g. main
try {
PrinterJob workingJob = PrinterJob.getPrinterJob();
workingJob.setPrintable(new WorkingPrintable());
workingJob.print();

PrinterJob failingJob = PrinterJob.getPrinterJob();
failingJob.setPrintable(new FailingPrintable());
failingJob.print();

} catch(Exception ex) {
ex.printStackTrace();
}

}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
see class WorkingPrintable