applet locks-up jvm: IllegalStateException: zip file closed

 "Adrian Hands, Raleigh NC USA" <>
Tue, 26 Jun 2007 12:01:59 -0700
public class BugTest
    extends java.applet.Applet
    private final static String JLFGR =
        "jar:!"; //
sun-supplied jar file

    public void start()
        javax.swing.SwingUtilities.invokeLater( new Runnable()
{ public void run() {
            javax.swing.JFrame frame = new BugTestFrame();
            frame.setVisible( true );
        } } );

    public static class BugTestFrame
        extends javax.swing.JFrame
        public BugTestFrame()
            java.awt.Container cp = new javax.swing.JPanel();
            setContentPane( cp );

            try {

                // this file is not in the jar. the attempt to find
it seems to leave the jar in an unexpected (closed) state, and causes
the next line to lock up the jvm & browser:
                new javax.swing.ImageIcon( new JLFGR + "/
foobar.gif" ) );

                // here's where it locks up and everything becomes
                cp.add( new javax.swing.JLabel( new
javax.swing.ImageIcon( new JLFGR + "/
toolbarButtonGraphics/general/Stop16.gif" ) ) ) );

            } catch( exc ) {


Uncaught error fetching image:
java.lang.IllegalStateException: zip file closed
 at Source)
 at Source)
 at java.util.jar.JarFile.getEntry(Unknown Source)
 at com.sun.deploy.cache.CachedJarFile.getEntry(Unknown Source)
 at Source)
 at sun.awt.image.URLImageSource.getDecoder(Unknown Source)
 at sun.awt.image.InputStreamImageSource.doFetch(Unknown Source)
 at sun.awt.image.ImageFetcher.fetchloop(Unknown Source)
 at Source)

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