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Old 12-26-2008, 09:45 PM
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Default ClassNotFoundException with Applet and new JRE
I've signed applet to show lyrics and it worked well almost two years.
on karaoke-lyrics 'dot' net

I've noticed today, that it doesn't work,
but I didnt change anything last month so
I think, that it is bug in JRE
I've installed newest version - 1.6.0_11 and I get same error.

Please help, thank you

I Get following error:

load: class mp3tagger/applets/KaraokeApplet.class not found.
java.lang.ClassNotFoundException: mp3tagger.applets.KaraokeApplet.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Un known Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unk nown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unk nown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionR unnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed:
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unk nown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(U nknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknow n Source)
at java.security.AccessController.doPrivileged(Native Method)
... 7 more
Exception: java.lang.ClassNotFoundException: mp3tagger.applets.KaraokeApplet.class
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Old 01-13-2009, 09:32 PM
kbr kbr is offline
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We at Sun have investigated this failure. It is caused by a longstanding bug in how the Firefox browser reports the document base for XHTML documents to the classic Java Plug-In. The bug was fixed in the new Java Plug-In. Your applet tag is incorrectly phrased which is why you are encountering the difference in behavior. If you change the codebase parameter in your applet to "/classes" from "classes" it should work better -- but we have found that there seem to be other configuration problems with your applet preventing it from running properly even with the classic Java Plug-in.
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Old 01-13-2009, 09:46 PM
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Thank You Very much.

I fix all problems.
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