FULL PRODUCT VERSION :
chuck@moth:~> java -version
java version "1.6.0_01-ea"
Java(TM) SE Runtime Environment (build 1.6.0_01-ea-b03)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_01-ea-b03, mixed mode)
chuck@moth:~>

ADDITIONAL OS VERSION INFORMATION :
Linux moth 2.6.13-15.13-default #1 Tue Nov 28 13:43:50 UTC 2006 x86_64 x86_64 x86_64 GNU/Linux

EXTRA RELEVANT SYSTEM CONFIGURATION :
SUSE 10.2 (boxed) on AMD 64

A DESCRIPTION OF THE PROBLEM :
Following class throws NPE -- should not.

package experimental;

import java.awt.Font;
import javax.swing.DebugGraphics;

public class DebugGraphicsNullPointer {

private DebugGraphics dgraph;
private Font font;


public DebugGraphicsNullPointer() {
}


public static void main(String[] args) {
DebugGraphicsNullPointer pointer = new DebugGraphicsNullPointer();
pointer.runTest();

}

private void runTest() {
dgraph = new DebugGraphics();
font = new Font("Currier", Font.PLAIN, 10);
if(font == null) {
System.out.println("The font object is null"); // does not execute
}
dgraph.setFont(font); // this line throws NPE @ DebugGraphics line 185
}

}

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run the class

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
should run clean or output the text
ACTUAL -
throws NPE

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Compiling 1 source file to /programs/Infosys/client/build/classes
compile-single:
run-single:
Exception in thread "main" java.lang.NullPointerException
        at javax.swing.DebugGraphics.setFont(DebugGraphics.java:185)
        at experimental.DebugGraphicsNullPointer.runTest(DebugGraphicsNullPointer.java:43)
        at experimental.DebugGraphicsNullPointer.main(DebugGraphicsNullPointer.java:33)
Java Result: 1
BUILD SUCCESSFUL (total time: 10 seconds)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package experimental;

import java.awt.Font;
import javax.swing.DebugGraphics;

/**
 *
 * @author chuck
 */
public class DebugGraphicsNullPointer {

private DebugGraphics dgraph;
private Font font;

/** Creates a new instance of DebugGraphicsNullPointer */
public DebugGraphicsNullPointer() {
}

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
DebugGraphicsNullPointer pointer = new DebugGraphicsNullPointer();
pointer.runTest();

}

private void runTest() {
dgraph = new DebugGraphics();
font = new Font("Currier", Font.PLAIN, 10);
if(font == null) {
System.out.println("The font object is null");
}
dgraph.setFont(font);
}

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