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  1. JDK
  2. JDK-7026051

appletviewer cannot show swing components

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Not an Issue
    • Affects Version/s: 7
    • Fix Version/s: 7
    • Component/s: tools
    • Labels:

      Description

      SYNOPSIS
      --------
      appletviewer cannot show swing components

      OPERATING SYSTEMS
      -----------------
      Redhat Enterprise Linux 6
      Windows XP

      FULL JDK VERSION
      ----------------
      java version "1.7.0-ea"
      Java(TM) SE Runtime Environment (build 1.7.0-ea-b132)
      Java HotSpot(TM) Client VM (build 21.0-b03, mixed mode)

      DESCRIPTION
      -----------
      This is not reproducible when the applet is run in the browser.
      This is reproducible using appletviewer.

      This looks very similar to CR 7002612, which was closed as a duplicate of CR 6986229. However, issue can reproduce this issue on 7-b132 despite the fix for 6986229 being delivered in b123.

      Appletviewer cannot show its inner components just after starting. When I resize the appletviewer's window, I can see the inner components correctly. A similar AWT sample didn't have the problem.

      Adding invalidate() at the end of the init() method in the testcase works around issue.


      --- swing.html ---
      <html>
      <body>
      <applet code="swing.class" height=300 width=300>
      </applet>
      </body>
      </html>
      ------------------

      --- swing.java ---
      import java.awt.*;
      import javax.swing.*;
      import java.applet.Applet;

      public class swing extends JApplet {
         public void init(){
              Container c = this.getContentPane();
              c.setLayout(new BorderLayout());
              JScrollPane scrollPane = new JScrollPane();
              scrollPane.getViewport().add(new JTextArea());
              c.add("Center",scrollPane);
              c.add("South",new JTextField());
      // workaround
      // invalidate () ;
         }
      }
      ------------------

      REPRODUCTION INSTRUCTIONS
      -------------------------
      Compile the sample code and load html by appletviewer. Note that the appletviewer doesn't show inner components. It shows grey background.

      WORKAROUND
      ----------
      See testcase (add invalidate()).

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              • Assignee:
                denis Denis Fokin (Inactive)
                Reporter:
                dkorbel David Korbel (Inactive)
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                • Created:
                  Updated:
                  Resolved:
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