FIX: Printing from Java Results in Depletion of GDI and System Resources (244201)

MORE INFORMATION

Steps to Reproduce Behavior

1. On a Windows 98-based computer with Microsoft VM version 3186 or earlier, create a file GDILeakTest.java with the following code:

   import java.awt.*;
   import java.awt.event.*;
   
   public class GDILeakTest extends Frame {
   
       PrintCanvas canvas;
   
       public GDILeakTest() {
           super("GDI leak Test");
           canvas = new PrintCanvas();
           add("Center", canvas);
   
           Button b = new Button("Print");
           b.setActionCommand("print");
   	b.addActionListener( new ActionListener(){
   				public void actionPerformed(ActionEvent e){
   					buttonActionHandler(e);
   				}
   			});
           this.add("South", b);
   
   	this.addWindowListener( new WindowAdapter(){
   				public void windowClosing(WindowEvent e){
   					close();
   				}
   			});
   		
           this.pack();
       }
   
       public void close()
       {
   	System.exit(0);
       }
   	
       private void buttonActionHandler(ActionEvent e){
   	String cmd = e.getActionCommand();
   	if (cmd.equals("print")) {
   	    PrintJob pjob = getToolkit().getPrintJob(this,
   						"GDI Leak Test", null);
   	    if (pjob != null) {
   		Graphics pg = pjob.getGraphics();
   
   		if (pg != null) {
   		   canvas.printAll(pg);
   		   pg.dispose();
   		}
   		pjob.end();
   	    }
   	}
       }
   		
       public static void main(String args[]) {
           GDILeakTest test = new GDILeakTest();
           test.show();
       }
   }
   
   class PrintCanvas extends Canvas {
   
       public Dimension getPreferredSize() {
           return new Dimension(400, 200);
       }
   
       public void paint(Graphics g) {
           Font font = new Font("Courier", Font.BOLD, 11);
           g.setFont(font);
           g.setColor(Color.black);
           g.drawString("This is a test page", 10, 50);
           g.drawString("Print this page number of times", 10, 70);
           g.drawString("Watch the resource meter", 10, 90);
       }
   }
   
   					

2. Use the following command to compile GDILeakTest.java:

   jvc GDILeakTest.java

3. Run the generated GDILeakTest.class using:

   jview GDILeakTest.class

   This will cause a frame dialog box to appear with a Print button.
4. Open the Resource Meter tool in Windows 98 (from the Start menu, point to Programs, point to Accessories, point to System Tools, and click Resource Meter). Click the Print button to print a test page, and each print will show a decrease in the GDI and system resources. After a number of repeated prints, the GDI resources will be exhausted and the system will become unresponsive or come to a halt.