ClassFormatError with an Applet?

[Josh Rodrigues]

Hi, I'm having some trouble working with an Applet I made in Java. I'm trying to get it up onto my forums, but I get a weird error saying the following:

Java Plug-in 1.6.0_20
Using JRE version 1.6.0_20-b02 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Owner

----------------------------------------------------
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------

basic: Added progress listener: sun.plugin.util.GrayBoxPainter$GrayBoxProgressListener@df0438
basic: Plugin2ClassLoader.addURL parent called for http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com:80/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Downloading resource: http://rs3newstart.tk/RS3.jar
    Content-Length: 28,822
    Content-Encoding: null
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Downloading resource: http://rs3newstart.tk/RS3.jar
    Content-Length: 27,732
    Content-Encoding: null
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Downloading resource: http://rs3newstart.tk/RS3.jar
    Content-Length: 27,753
    Content-Encoding: null
network: Cache entry not found [url: http://rs3newstart.tk/RS3.jar, version: null]
network: Connecting http://rs3newstart.tk/RS3.jar with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/RS3.jar
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Downloading resource: http://rs3newstart.tk/RS3.jar
    Content-Length: 28,898
    Content-Encoding: null
network: Cache entry not found [url: http://rs3newstart.tk/, version: null]
network: Cache entry not found [url: http://rs3newstart.tk/Client/bin/LoadApplet.class, version: null]
network: Connecting http://rs3newstart.tk/Client/bin/LoadApplet.class with proxy=DIRECT
network: Connecting http://rs3newstart.tk:80/ with proxy=DIRECT
network: Connecting http://rs3newstart.tk/Client/bin/LoadApplet.class
network: Cache entry not found [url: http://err.000webhost.com/, version: null]
network: Connecting http://err.000webhost.com/ with proxy=DIRECT
network: Connecting http://err.000webhost.com:80/ with proxy=DIRECT
network: Connecting http://err.000webhost.com/
network: Server http://err.000webhost.com/ requesting to set-cookie with "keyword=000webhost.com; path=/"
network: Server http://err.000webhost.com/ requesting to set-cookie with "template=webhost_results; path=/"
network: Cache entry not found [url: http://rs3newstart.tk/, version: null]
basic: error: Incompatible magic value 1008813135 in class file Client/bin/LoadApplet.
java.lang.ClassFormatError: Incompatible magic value 1008813135 in class file Client/bin/LoadApplet
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
    at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassFormatError: Incompatible magic value 1008813135 in class file Client/bin/LoadApplet
security: Accessing keys and certificate in Mozilla user profile: null

Here is the website to try out the Applet. Go to http://rs3newstart.tk and simply hover over "Server" and then click on "Play". The Applet will run, but not for long. I'm still working on the forums, so not everything is in the right place as I would like it to be. I'm not sure why this error is coming up nor do I know what's causing it. Unless 000webhost does not support Jar files nor Applets? Here is the PHP script for the Play.php file I made:

<?php
if (!defined('SMF'))
    die('Hacking attempt...');

function Play()
{
    echo '
        <html>
            <head>
                <title>RS3 Newstart</title>
            </head>
            <body>
                <center>
                    <applet width = 500 height = 85 archive = "RS3.jar" code = "Client.bin.LoadApplet.class">
                        <param name = "java_arguments" value = "-Xmx1024m">
                    </applet>
                </center>
            </body>
        </html>
    ';
}
?>

If you need anymore information, please ask. Help is appreciated. Thanks.

[Paul Clapham]

Did you put the applet class where it is via FTP?

And if so, did you remember to use image (not ASCII) mode?

[Josh Rodrigues]

Paul Clapham wrote:And if so, did you remember to use image (not ASCII) mode?

Oh, how would I do that using CuteFTP? I guess I did put it in as ASCII.

[Paul Clapham]

Sorry, no idea. I went to their website but since it's paid-for software they don't seem to have any documentation on-line. It's funny how you get used to the idea of applications putting their docs on-line.

[Josh Rodrigues]

Paul Clapham wrote:Sorry, no idea. I went to their website but since it's paid-for software they don't seem to have any documentation on-line. It's funny how you get used to the idea of applications putting their docs on-line.

I'm using the free version, CuteFTP Home.

[Paul Clapham]

Josh Rodrigues wrote:

Paul Clapham wrote:Sorry, no idea. I went to their website but since it's paid-for software they don't seem to have any documentation on-line. It's funny how you get used to the idea of applications putting their docs on-line.

I'm using the free version, CuteFTP Home.

I thought you might be. But I don't see any documentation for it on line either. There's a forum on their website.

I'm guessing there's somewhere where you configure which file extensions represent text (like .html) and which file extensions represent binary (like .jpg), and it doesn't know about .class files. Just guessing though.