Java Web Start Error - java.io.IOException: EOF reading band

I am using Java Web Start to download an application and I am getting the following error. How do I resolve this? The jar that is being downloaded is present in the directory.
java.io.IOException: EOF reading band
     at com.sun.java.util.jar.pack.NativeUnpack.start(Native Method)
     at com.sun.java.util.jar.pack.NativeUnpack.run(Unknown Source)
     at com.sun.java.util.jar.pack.NativeUnpack.run(Unknown Source)
     at com.sun.java.util.jar.pack.UnpackerImpl.unpack(Unknown Source)
     at com.sun.deploy.net.HttpDownloadHelper.download(Unknown Source)
     at com.sun.deploy.cache.Cache.downloadResourceToTempFile(Unknown Source)
     at com.sun.deploy.cache.Cache.downloadResourceToCache(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
     at com.sun.javaws.Launcher.downloadResources(Unknown Source)
     at com.sun.javaws.Launcher.prepareLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
     at com.sun.javaws.Launcher.launch(Unknown Source)
     at com.sun.javaws.Main.launchApp(Unknown Source)
     at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
     at com.sun.javaws.Main$1.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

jfdenise wrote:
Hi,
I am facing the exact same issue when getting a big jar of more than 7 megs. It seems to occur in some special network configuration that I am not yet able to figure out. It is obviously linked to the fact that the jar is unpacked on the client side.
Anybody ran into this one and understood the root cause?Please, don't resurrect old threads, and don't use signatures with addresses. I'm locking this thread.
Kaj

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Sorry, I was in a hurry and didn't read your e-mail properly. Note: This is a thread in a public forum, not email.
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... 36 more
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Edited by: javaDev on Dec 19, 2008 11:58 AM
Edited by: javaDev on Dec 19, 2008 12:18 PM

I got the solution for ClassNotFound issue. To avoid this error, one need to package EJB stubs on client side. Packaging just the EJB interfaces doesn't help.
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WebLogic Server Command Reference : Link: [http://edocs.bea.com/wls/docs103/pdf/admin_ref.pdf]

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=============================================================
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==========================================================================
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===================================
Manifest-Version: 1.0
Main-Class: IRMASSvrMgntGUI
Class-Path: classes12.jar
Created-By: 0.9a (itoh)
===================================
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====================================
META-INF/
classes12.jar
DBAuthenticateDialog.class
DBConnection.class
IRMASSvrMgntGUI.class
====================================

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     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
     at com.sun.jnlp.JNLPClassLoader.defineClass(Unknown Source)
     at com.sun.jnlp.JNLPClassLoader.access$1(Unknown Source)
     at com.sun.jnlp.JNLPClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
     at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
     at viewer.imageViewer.UtilityMenuPane.jbInit(UtilityMenuPane.java:167)
     at viewer.imageViewer.UtilityMenuPane.<init>(UtilityMenuPane.java:155)
     at viewer.imageViewer.UtilityMenuPane.getInstance(UtilityMenuPane.java:147)
     at viewer.imageViewer.ImageViewerFrame.jbInit(ImageViewerFrame.java:179)
     at viewer.imageViewer.ImageViewerFrame.<init>(ImageViewerFrame.java:145)
     at viewer.imageViewer.ImageViewerFrame.getInstance(ImageViewerFrame.java:126)
     at viewer.ImageViewer.execute(ImageViewer.java:30)
     at viewer.Viewer.execute(Viewer.java:63)
     at viewer.Viewer.<init>(Viewer.java:27)
     at viewer.Viewer.main(Viewer.java:40)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at com.sun.javaws.Launcher.executeApplication(Unknown Source)
     at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
     at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Thread.java:536)
Does anybody know why this happens?
Thanks

Hi There.
We had the same problem with some of our code. We moved the definition of the class from a method out of the method. Like this:
public class{
class{
instead of doing this:
public class{
method() {
class{
This worked with the web start......
Best regards
Jesper Lorentzen

Bootstrap with Java Web Start: is it possible?

I'm developing a chat for my university and I want to use Java Web Start. For the application client-side, I've write a class, named URLClientBootstrap.java, put it into a jar file, and my jnlp file refers to it.
This class does a bootstrap of another class of the server codebase, named AutClient.java and it's correctly throw thanks to JWS. But, if I click on a button, I need to make another bootstrap so, from AutClient.java, I need to bootstrap a class named RegClient.java but this doesn't append.
Why? I can make only one bootstrap? Or maybe JWS doesn't allow me to start another applet?

Hi,
Your concern is legitimate.
Basically to work with SLD you will not face any problem while creating the Business system but your main intention is to use it in configuration and that is in ID which is a client application and that needs Java Webstart to run on your local machine. Definitely you can create the Business system in SLD but to work with that one you need JavaWebstart
Java Web Start:
Using Java Web Start technology, standalone Java software applications can be deployed with a single click over the network. Java Web Start ensures the most current version of the application will be deployed, as well as the correct version of the Java Runtime Environment (JRE)
cheers,
Abhishek.

Java Web Start Error - java.io.IOException: EOF reading band

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