(1) Working environments
 OS : Solaris2.6
 JDK : JDK1.1.8, JDK1.2 fcs
 Window : CDE
 Japanese Input : Atok7, Atok8
 
 (2) Symptom

When "drawString" method has been invoked without setting a font to the
graphics gotten by "getGraphics" method of "PrintJob" class,
NullPointerException occurs.

Note: This exception doesn't occur in displaying the character string
on the frame drawn by "drawString" method.

---------------<TestPrint.java>----------------

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class TestPrint extends Frame {

public TestPrint () {

MenuBar mb = new MenuBar();
Menu m = new Menu ("File");
MenuItem mi = new MenuItem ("Print");
mi.addActionListener (
new ActionListener () {
public void actionPerformed ( ActionEvent evt) {
print ();
}
});

m.add (mi);
mb.add(m);
setMenuBar(mb);

addWindowListener (
new WindowAdapter () {
public void windowClosing (WindowEvent e) {
System.exit(0);
}
});
}

public void print () {

// get the screen's specifics
int resolution = getToolkit().getScreenResolution();

// get the printer's resolution specifics
PrintJob pjob = getToolkit().getPrintJob (this, "testing", null);

if (pjob != null) {
Graphics pg = pjob.getGraphics ();
if (pg != null) {
print(pg);
}
pjob.end();
}
    }
   
    public void paint (Graphics g) {
         int resolution = getToolkit().getScreenResolution();
// draw a 4"x4" rectangle: (4*resolution) x (4*resolution)

g.translate(getInsets().left + 20, getInsets().top +10);

g.drawRect (0, 0, 4 * resolution, 4 * resolution);

// this is an error position
g.drawString ("This is a testprint",20, 20);

}

public static void main (String[] args) {
Frame f = new TestPrint ();
f.setSize (420, 420);
f.show();
}
}

--------------<TestPrint.java end>----------------

--------------<the content of the Exception>------
Exception occurred during event dispatching:
java.lang.NullPointerException
        at sun.awt.SunToolkit.getFontMetrics(Compiled Code)
        at sun.awt.motif.MToolkit.getFontMetrics(Compiled Code)
        at sun.awt.motif.PSGraphics.getFontMetrics(Compiled Code)
        at sun.awt.motif.PSPrintStream.sendString(Compiled Code)
        at sun.awt.motif.PSGraphics.drawString(Compiled Code)
        at TestPrint.paint(Compiled Code)
        at java.awt.Component.print(Compiled Code)
        at java.awt.Container.print(Compiled Code)
        at TestPrint.print(Compiled Code)
        at TestPrint$1.actionPerformed(Compiled Code)
        at java.awt.MenuItem.processActionEvent(Compiled Code)
        at java.awt.MenuItem.processEvent(Compiled Code)
        at java.awt.MenuComponent.dispatchEventImpl(Compiled Code)
        at java.awt.MenuComponent.dispatchEvent(Compiled Code)
        at java.awt.EventQueue.dispatchEvent(Compiled Code)
        at java.awt.EventDispatchThread.run(Compiled Code)

--------------<the content of the Exception end>------


Strangely, a sentence, "Font f = g.getFont();" , is only added before the
sentence include "drawString" in "paint" method, so this exception doesn't
occur.

I suspect that this is a bug, and that it is inconvenient to have to set
a font to the graphics gotten by "getGraphics" method of "PrintJob" class
before "drawString" method.


--------------<"paint" method in TestPrint.java>--------

public void paint (Graphics g) {
int resolution = getToolkit().getScreenResolution();
// draw a 4"x4" rectangle: (4*resolution) x (4*resolution)

g.translate(getInsets().left + 20, getInsets().top +10);

g.drawRect (0, 0, 4 * resolution, 4 * resolution);

Font f = g.getFont(); //add

g.drawString ("This is a testprinti",20, 20);
}

--------------<"paint" method in TestPrint.java end>--------