Salut !
J'ai le même problème, j'ai des .jar dont 1 contient l'applet, je les joins en archive, le codebase est bon et j'appel la classe en la précédent du nom du package ... mais il me plante un vieux ClassNotFoundException.
En fait j'ai deux serveur, un Linux et un NT... ca marche sur le NT mais pas sous linux ....
Help ....
ENFIN UN SITE FRANCAIS POUR JAVA !!!

MERCI
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Réponse au message :
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> pas besoin de tout sender, c'est les premières lignes qui sont importantes
>
> harger : classe Check.class introuvable.
>
> java.lang.ClassNotFoundException: java.net.ConnectException: HTTPS response=404
>
> response=404 ..... ce qui veut dire élément introuvable
>
> cause d'erreur possible :
> mauvais lien
> fichier introuvable
> espace dasn le nom de la class
>
>
>
> -------------------------------
> Réponse au message :
> -------------------------------
>
> > Bonjours
> >
> > Voila le probleme qu'indique mon applet java pouvez vous m'aidez:
> >
> >
> > harger : classe Check.class introuvable.
> >
> > java.lang.ClassNotFoundException: java.net.ConnectException: HTTPS response=404
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.openStream(Native Method)
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.<init>(Unknown Source)
> >
> > at sun.plugin.protocol.https.BrowserHttpsURLConnection.getInputStream(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.getBytes(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.access$100(Unknown Source)
> >
> > at sun.applet.AppletClassLoader$1.run(Unknown Source)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at sun.applet.AppletClassLoader.findClass(Unknown Source)
> >
> > at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadCode(Unknown Source)
> >
> > at sun.applet.AppletPanel.createApplet(Unknown Source)
> >
> > at sun.plugin.AppletViewer.createApplet(Unknown Source)
> >
> > at sun.applet.AppletPanel.runLoader(Unknown Source)
> >
> > at sun.applet.AppletPanel.run(Unknown Source)
> >
> > at java.lang.Thread.run(Unknown Source)
> >
> > charger : classe pki.AppletPKIMS.class introuvable.
> >
> > java.lang.ClassNotFoundException: java.net.ConnectException: HTTPS response=404
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.openStream(Native Method)
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.<init>(Unknown Source)
> >
> > at sun.plugin.protocol.https.BrowserHttpsURLConnection.getInputStream(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.getBytes(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.access$100(Unknown Source)
> >
> > at sun.applet.AppletClassLoader$1.run(Unknown Source)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at sun.applet.AppletClassLoader.findClass(Unknown Source)
> >
> > at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadCode(Unknown Source)
> >
> > at sun.applet.AppletPanel.createApplet(Unknown Source)
> >
> > at sun.plugin.AppletViewer.createApplet(Unknown Source)
> >
> > at sun.applet.AppletPanel.runLoader(Unknown Source)
> >
> > at sun.applet.AppletPanel.run(Unknown Source)
> >
> > at java.lang.Thread.run(Unknown Source)
> >
> > charger : classe pki.AppletPKIMS.class introuvable.
> >
> > java.lang.ClassNotFoundException: java.net.ConnectException: HTTPS response=404
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.openStream(Native Method)
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.<init>(Unknown Source)
> >
> > at sun.plugin.protocol.https.BrowserHttpsURLConnection.getInputStream(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.getBytes(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.access$100(Unknown Source)
> >
> > at sun.applet.AppletClassLoader$1.run(Unknown Source)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at sun.applet.AppletClassLoader.findClass(Unknown Source)
> >
> > at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadCode(Unknown Source)
> >
> > at sun.applet.AppletPanel.createApplet(Unknown Source)
> >
> > at sun.plugin.AppletViewer.createApplet(Unknown Source)
> >
> > at sun.applet.AppletPanel.runLoader(Unknown Source)
> >
> > at sun.applet.AppletPanel.run(Unknown Source)
> >
> > at java.lang.Thread.run(Unknown Source)
> >
> > charger : classe Check.class introuvable.
> >
> > java.lang.ClassNotFoundException: java.net.ConnectException: HTTPS response=404
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.openStream(Native Method)
> >
> > at sun.plugin.protocol.https.BrowserHttpsInputStream.<init>(Unknown Source)
> >
> > at sun.plugin.protocol.https.BrowserHttpsURLConnection.getInputStream(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.getBytes(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.access$100(Unknown Source)
> >
> > at sun.applet.AppletClassLoader$1.run(Unknown Source)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at sun.applet.AppletClassLoader.findClass(Unknown Source)
> >
> > at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadCode(Unknown Source)
> >
> > at sun.applet.AppletPanel.createApplet(Unknown Source)
> >
> > at sun.plugin.AppletViewer.createApplet(Unknown Source)
> >
> > at sun.applet.AppletPanel.runLoader(Unknown Source)
> >
> > at sun.applet.AppletPanel.run(Unknown Source)
> >
> > at java.lang.Thread.run(Unknown Source)
> >
> > charger : classe Palindrome.class introuvable.
> >
> > java.lang.ClassNotFoundException: java.io.IOException: open HTTP connection failed.
> >
> > at sun.applet.AppletClassLoader.getBytes(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.access$100(Unknown Source)
> >
> > at sun.applet.AppletClassLoader$1.run(Unknown Source)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at sun.applet.AppletClassLoader.findClass(Unknown Source)
> >
> > at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadClass(Unknown Source)
> >
> > at java.lang.ClassLoader.loadClass(Unknown Source)
> >
> > at sun.applet.AppletClassLoader.loadCode(Unknown Source)
> >
> > at sun.applet.AppletPanel.createApplet(Unknown Source)
> >
> > at sun.plugin.AppletViewer.createApplet(Unknown Source)
> >
> > at sun.applet.AppletPanel.runLoader(Unknown Source)
> >
> > at sun.applet.AppletPanel.run(Unknown Source)
> >
> > at java.lang.Thread.run(Unknown Source)
> >
> > merci de bien vouloir m'aidez
>