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From "Alexey Petrenko (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-4925) [classlib][awt] GDI Objects are not released after calling getGraphics() function of Component class
Date Tue, 16 Oct 2007 14:30:50 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-4925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexey Petrenko reassigned HARMONY-4925:
----------------------------------------

    Assignee: Alexey Petrenko

> [classlib][awt] GDI Objects are not released after calling getGraphics() function of
Component class
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-4925
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4925
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>         Environment: Windows
>            Reporter: Dmitriy Matveev
>            Assignee: Alexey Petrenko
>         Attachments: GraphicsLeaksAWTSwing.patch
>
>
> Reproducer:
> import java.awt.Frame;
> import java.awt.Graphics;
> import java.awt.Graphics2D;
> import java.awt.event.MouseEvent;
> import java.awt.event.MouseListener;
> import java.awt.event.WindowAdapter;
> import java.awt.event.WindowEvent;
> public class Test {
>     public static void main(String[] args) {
>         final Frame f = new Frame() {
>             public void paint(Graphics g) {
>                 Graphics2D g2d = (Graphics2D) g;
>                 g2d.drawString("asdf",50,50);
>             }
>         };
>         f.setBounds(0, 0, 800, 600);
>         f.setVisible(true);
>         f.addWindowListener(new WindowAdapter() {
>             public void windowClosing(WindowEvent ev) {
>                 System.exit(0);
>             }
>         });
>         
>         f.addMouseListener(new MouseListener(){
>             public void mouseReleased(MouseEvent e){
>                f.getGraphics();
>             }
>             public void mouseClicked(MouseEvent e) {
>             }
>             public void mouseEntered(MouseEvent e) {
>             }
>             public void mouseExited(MouseEvent e) {
>             }
>             public void mousePressed(MouseEvent e) {
>             }
>         });
>     }
> }
> You may use Windows Task Manager to view the number of used GDI objects.
> To do this, you need:   
>    1. Click the Processes tab in Task Manager
>    2.Click View, then Select Columns.
>    5. Check GDI Objects and click OK.
>    6. Click the java-process of the test, and scroll to the GDI Objects column.

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