Class not found (older computer/browser)

Ok I have apache set up on my win2k machine. In an html file I have
<applet code="Game.class" width=304 height=284></applet>. Ok so, the applet loads when I do //localhost/java/view.html but it doesn't work when I access the page from an old computer. The old computer is a Mac 9 with IE 5.1 and Netscape 6. Both complain about class not found.

Check out the java console. It may give more information.
Also check your apache logs. Confirm that the applet class is being requested, that it finishes with a 200 status, and that the number of bytes sent is correct.

Similar Messages

Class not found only using browser.

I can not run any of my java programs in my browsers. They work fine using the "java" command in a dos window or using the "appletviewer" command. But when I try to view them in a browser, the page appears to load fine but I get no program and the status window of the browser displays a class not found msg.
I've checked spelling, location, capitalization. Everything works fine outside the browsers but will not view in a browser. We had the same problem in school and the instructor just said to stick with the appletviewer for class.
I am running JDK1.2. Any suggestions?
John

Maybe you should try a newer JAVA version.
I had a similar problem, but with a (too) newer JAVA version.
Problem:
You're compiling your applets with a quiet modern compiler (i.e. Netbeans Version 3.5.1)
You are able to compile your applets without any problems but if you try your applets in "real life", the browsers can't interpret your applets [class not found]. (I tested Internet Explorer 6.0 and Netscape Navigator 4.7)
So you need a plugin for the new JAVA environment because the JAVA environment of the browser is older than that which the applet needs.
Well, you have the choice to demand to every user of your applet to download the new Java Runtime Environment, but then don't wonder why nobody visits your site!
But, don't worry: I figuered out another solution, that Netbeans (www.netbeans.org) allows to compile in different JAVA versions.
Solution:
What you have to do is:
- Install a previous version of JDK (i.e. JDK 1.3 - I would suggest, lower versions don't work with Netbeans 3.5.1 and JDK 1.3 is enough for IE 6.0 and NN 4.7, which I tested)
- Go into the "bin"-directory of Netbeans (i.e. c:/netbeans3.5.1/bin)
- Open the file "ide.cfg" (with notepad or any other texteditor)
- You see a line like: jdkhome "C:\java\j2sdk1.4.2" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- Change the path to your other JDK you wish, like: jdkhome "C:\java\jdk1.3" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- That's it, you can compile your applets in a previous version of JAVA so that "older" browser user don't have to install a plugin for the new JAVA environment.
Have fun!
If you have any questions I would be pleased to help you.
If this tip helped you already I would be pleased if you would send me a quick email with your experience.
My email: [email protected]

Class not found error on Firefox browser

Requirement:-
We have Apache server on the top of a tomcat container where we have deployed application Webnow. This application will provide SSO to another application Imagenow. The requirement is we have to authenticate and authorize a user based on the client certificate which will be installed on the client side browser.
Issue:-
We have achieved the requirement for the browser IE. But for browser Firefox ,we are getting an exception "Class not found". Basically an applet class from the jar is not getting loaded on the Firefox.
Further investigating on this we came to conclusion that Firefox is not able to read the SSL certificate.
In order to eliminate this, we have imported the client certificate in java console as well. After this step, we were not getting "ClassNotFoundException" in FF. But right now, user is getting prompted for certificate/keystore password each & every time while trying to login onto the application (both in IE & FF).
So, we are trying to find ways to remove class not found exception without importing client certificate to java console. Also , is there any way to eliminate the authentication pop up for keystore (though we might not go for this approach as it will be very difficult to manage Java console for end users). Need your urgent help on this issue.
Attaching stack trace of both the browser and screenshot of keystore authentication pop-up . FF_Issue_stacktrace.docx is one when we were getting "class not found exception" and IE_Stacktrace.docx is one for successful case.

We have a similar set up where we have a web app and an applet in a JSP page. You have to put your applet classes up above WEB-INF. So, if your structure for your webapp was:
tomcat/webapps/mywebapp
you'd want your classes under mywebapp instead of webapps/mywebapp/WEB-INF. In your case, if I read your package structure right, you'd want a Log directory under webapp that contains your LogApplet.class file.
I hope this works for you!

Class Not Found Error Doesn't Make Sense

Possible answer to CNF Exception problems.
I have written a simple slide show applet that displays a sequence of jpgs. In order to make it work for the majority of people and older systems I used the AWT Applet rather than the JApplet framework.
I compiled it using the latest JDK 1.4.1, ran it using applet viewer and locally inside my web browser (IE 6.0) and it all worked fine.
I uploaded it to a web-server, tested it and received a Class Not Found exception. After a few hours of checking, rechecking (code= codebase= etc. etc.) I decided to use an older version of the JDK to compile the applet (since the code was compatible). The oldest I could find was 1.1.8, so I compiled, uploaded and it works on every computer I've tried???
What is the problem here?? Windows 98, the 1.4.1 JDK, IE 6.0?? Has anyone had similar problems before? Why did it work locally but not online?

Hi.
Instead of using the old JDK you can also compile your code for a specific version with
javac -target 1.1 MyApp.javaCheers,
kelysar

Class not found error for applet.

This is probally a really simple mistake but I've tried everything and can't find it.
My applet works fine with applet viewer - I'm running it from JBuilder. But when I open my html file in the browser it gives me a 'Class not found' error. I've tried running other applets (my own and demos on this site) and they work fine.This is the applet tag code:
<applet code = "Rotary.class" width = "650" height = "580" align = "top">

<param name = "sector0" value ="234,215,244,207,154,43,125,63">
</applet>
The class file is in the same directory as the HTML file. Do I need to specify the codebase? I tried that too - giving it the full pathname of the class.
In the Java console it said that it couldn't find "C:Project\Rotary\javax\swing\japplet"
I don't think it could have anything to do with the fact that I'm using swing because the other applets I used used swing.
Please help - I'm really running out of ideas here!

You have a similar problem like I had.
You seem to have a too old JAVA environment for the browser - I had a too new environment.
For all who are experiencing the same problem!
Problem:
You're compiling your applets with a quiet modern compiler (i.e. Netbeans Version 3.5.1)
You are able to compile your applets without any problems but if you try your applets in "real life", the browsers can't interpret your applets [class not found]. (I tested Internet Explorer 6.0 and Netscape Navigator 4.7)
So you need a plugin for the new JAVA environment because the JAVA environment of the browser is older than that which the applet needs.
Well, you have the choice to demand to every user of your applet to download the new Java Runtime Environment, but then don't wonder why nobody visits your site!
But, don't worry: I figuered out another solution, that Netbeans (www.netbeans.org) allows to compile in different JAVA versions.
Solution:
What you have to do is:
- Install a previous version of JDK (i.e. JDK 1.3 - I would suggest, lower versions don't work with Netbeans 3.5.1 and JDK 1.3 is enough for IE 6.0 and NN 4.7, which I tested)
- Go into the "bin"-directory of Netbeans (i.e. c:/netbeans3.5.1/bin)
- Open the file "ide.cfg" (with notepad or any other texteditor)
- You see a line like: jdkhome "C:\java\j2sdk1.4.2" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- Change the path to your other JDK you wish, like: jdkhome "C:\java\jdk1.3" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- That's it, you can compile your applets in a previous version of JAVA so that "older" browser user don't have to install a plugin for the new JAVA environment.
Have fun!
If you have any questions I would be pleased to help you.
If this tip helped you already I would be pleased if you would send me a quick email with your experience.
My email: [email protected]

Class not found. Or: THERE'S NO SUCH THING AS APPLETS

Okay, the problem I�m having seems to be somewhat widespread judging from the forum achieves, but I wasn�t able to find any answers that worked for me. So forgive me if I�m treading old ground, but asking explicitly is my one last attempt to learn what�s going on.
The problem is the �load: class <someclass.class> not found� gray screen whenever I try to view an applet. Now, looking around online, there are a few applets that I�ve been able to access, and many I haven�t; I�m not certain what causes some to work fine and others to gray screen, but there doesn�t seem to be a pattern to it other than the fact that if I can or can�t view one applet at a site, the same is generally true for all the other applets there as well.
Now, as for local applets on my computer, I can�t view any of them. Not examples that come with the SDK, none that I�ve compiled myself, and none that I�ve downloaded. Needless to say, in my exasperation I�ve run through every possible permutation of html code for class and classpath and so on trying to modify code into working, but to no avail.
Now, in the appletviewer, and in an IDE called RealJ, I can run applets just fine. It�s just those embedded in web pages that seem to give me trouble.
I�ve uninstalled and reinstalled j2sdk 1.4.1. I�m running IE 6.0. Windows 98SE. In my Internet options, I have under Java (Sun) the �Use Java 2 v1.4.1 for applet� box checked, and under Java VM the �Java console enabled� and �JIT Compiler� boxes checked, though I have also gone through every permutation possible here, again, to no avail.
Any idea what I can change so that I can start running applets with ease?
Thanks in advance, I desperately appreciate whatever suggestions you can give.
Travis

gray screen whenever I try to view an applet.
Now, looking around online, there are a few applets
that I�ve been able to access, and many I haven�t; Basically it is partly your browser and partly the version of the jdk /sdk that you are viewing. Generally, IE does not support swing ie JApplet, JButton, JTextArea etc... which is a shame cos it has some pretty neat features - I particularly like the flexibility with textfields and textAreas - and my favourite: imageIcon, allows you to have the sexiest looking buttons in the known universe. For reasons like this, people who like to write Applets like to use swing ... and people who like Sun don't like windoze and IE and the like (and they definitely hate each other). So, if you change your browser to Netscape or Opera - you will see swinging applets galore.
Shame really on a practical level, as the last survey I saw gave IE a 85 - 90 % share of the browser market. A bigger shame, when it seems to be deliberate that m-$oft do not include the latest JVM in their browser, yet they have the latest Flash plug-in. Both are in fact a good idea.
Any idea what I can change so that I can start running
applets with ease? Don't use swing and get a copy of something like jdk1.1.5 or even 1.1.2, if it compiles OK with this then it should be OK, keep it simple - as applets download on the client-side and can be unreliable and erratic so try and avoid images. Generally though Applets are a little bit out of vogue at the moment.

Class not found because browsers need newer runtime environment - or this

For all who are experiencing the same problem!
Problem:
You're compiling your applets with a quiet modern compiler (i.e. Netbeans Version 3.5.1)
You are able to compile your applets without any problems but if you try your applets in "real life", the browsers can't interpret your applets [class not found]. (I tested Internet Explorer 6.0 and Netscape Navigator 4.7)
So you need a plugin for the new JAVA environment because the JAVA environment of the browser is older than that which the applet needs.
Well, you have the choice to demand to every user of your applet to download the new Java Runtime Environment, but then don't wonder why nobody visits your site!
But, don't worry: I figuered out another solution, that Netbeans (www.netbeans.org) allows to compile in different JAVA versions.
Solution:
What you have to do is:
- Install a previous version of JDK (i.e. JDK 1.3 - I would suggest, lower versions don't work with Netbeans 3.5.1 and JDK 1.3 is enough for IE 6.0 and NN 4.7, which I tested)
- Go into the "bin"-directory of Netbeans (i.e. c:/netbeans3.5.1/bin)
- Open the file "ide.cfg" (with notepad or any other texteditor)
- You see a line like: jdkhome "C:\java\j2sdk1.4.2" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- Change the path to your other JDK you wish, like: jdkhome "C:\java\jdk1.3" -J-Xmx96m -J-Xss1024k -J-Xms24m -J-Xverify:none
- That's it, you can compile your applets in a previous version of JAVA so that "older" browser user don't have to install a plugin for the new JAVA environment.
Have fun!
If you have any questions I would be pleased to help you.
If this tip helped you already I would be pleased if you would send me a quick email with your experience.
My email: [email protected]

That's very good to know of course, but correct me if I am wrong with saying that Java development not
limited to NewBeans or any other IDE use.
If somebody wants to deploy the applets within browser built-in JVM (which is really outdated and just
Java 1.1.6 compliant) he or she should compile applet with Java 1.1.8 (still available from SunMicrosystems). Generated classes will be recognized by both Netscape and IE.
Regards.

Installed but not found on computer

I've successfully installed the latest 10.1 for my 64-bit laptop with Windows 7. A check by Adobe confirms that it was properly installed, and that I have the correct version for my computer.
AND YET, there is no icon for it anywhere, it doesn't come up on my list of Programs, when I enter "Adobe Flash Player" in the search bar it shows no such program, and when I try to play a FLV file, it won't give me Flash Player as an option. So..... I have it on my computer, but I apparently am not allowed to see it or access it?
I've uninstalled and re-installed several times, and cannot for the life of me figure out what the problem is. Any help for this maddening situation?

Hi,
Yes, I read his comments and I made sure Shockwave Flash Object was enabled in IE as he suggested. I am trying to make a flip book. One of the posts here in the forum said to make a SWF file, which I did. But now I can't figure out how to do anything with it. I thought Flash Reader was the right program to look at it, but maybe I'm wrong? Maybe I need Flash itself? The flip book thing has me pretty frustrated and confused. All the sites and software I've tried are poor quality. I was hoping I could figure out how to do it through Adobe to get better quality.
1. Oct 17, 2010 1:30 PM in response to: jonstrebler
Re: Installed but not found on computer
Hi, Flash Player is a browser plugin, not a stand alone Player. You should have Shockwave Flash Object in add ons in IE and make sure it is enabled.
Your Flash files are in C:\Windows\SysWOW64\Macromed\Flash
You may want the Adobe Media Player:http://www.adobe.com/products/mediaplayer/
Hope that helps,
eidnolb

Class not found in applet using 2 jar files

I have an applet which has been working for years as a stand alone or connecting directly to a derby database on my home server. I have just changed it to connect to MySQL on my ISP server via AJAX and PHP.
I am now getting a class not found error in my browser, probably because I'm stuffing up the class path.
The HTML I am using to call the applet is:
<applet code="AMJApp.class"
codebase="http://www.interactived.com/JMTalpha"
archive="AMJ014.jar,plugin.jar"
width="500"height="500"
MAYSCRIPT style="border-width:0;"
name="jsap" id="jsap"></applet>The AMJ014.jar contains the applet and supporting class files.
The error message is strange to me because it refers to a class I noticed on another web page but which has nothing to do with my applet. Anyway, the message in full is:
load: class NervousText.class not found.
java.lang.ClassNotFoundException: NervousText.class
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.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.ClassNotFoundException: NervousText.class
java.lang.UnsupportedClassVersionError: AMJApp : Unsupported major.minor version 51.0
     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 java.net.URLClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.defineClass(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.access$100(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.UnsupportedClassVersionError: AMJApp : Unsupported major.minor version 51.0

Thanks again.
The page code is:
<html>
<head>
<title>Applet to JavaScript to PHP</title>
</head>
<body>
<script type="text/javascript">
function updateWebPage(myArg)
document.getElementById("txt1").innerHTML=myArg;
if (myArg=="")
document.getElementById("cbxItem").innerHTML="";
return;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.onreadystatechange=function()
if (xmlhttp.readyState==4 && xmlhttp.status==200)
    document.getElementById("cbxItem").innerHTML=xmlhttp.responseText;
xmlhttp.open("GET","putitem.php?id="+myArg,true);
xmlhttp.send();
</script>
<form>
<table border=1 align='center' cellpadding=0 cellspacing=0 >
<tr><td style='text-align:center; background-color:#C0C0C0'>Compiled Java Applet</td></tr>
<tr><td><applet code="AMJApp.class" codebase="http://www.interactived.com/JMTalpha" archive="AMJ014.jar" width="500"height="500" MAYSCRIPT style="border-width:0;" name="jsap" id="jsap"></applet> </td></tr>
<tr><td style='text-align:center; background-color:#C0C0C0'>HTML Textbox filled by JavaScript</td></tr>
<tr><td><textarea style='width:500px; height:50px' name='txt1' id='txt1'>Query goes here</textarea></td></tr>
<tr><td style='text-align:center; background-color:#C0C0C0'>HTML diagnostic messages rendered by PHP script</td></tr>
<tr><td><div id="cbxItem">PHP info will populate this space</div></td></tr>
</table>
</form>
</body>
</html>The URL of the problem page is:
http://www.interactived.com/JMTalpha/AMJTest.htm
The code in the page is based on the following test page, which works:
http://www.interactived.com/test5Applet.htm
And the Applet, before I made any changes can be seen at this address:
http://www.interactived.com/jartest0906.htm
Thanks again for you interest.
Edited by: 886473 on 21-Sep-2011 00:47

Class Not Found Exception - applet won't run anywhere outside of IDE

I have an applet that runs perfectly in the netbeans IDE, but won't run from command prompt (I'm using windows) or from a browser. I've been banging my head against the wall for a few days on this one. Here's the HTML I'm using:
<applet width="400" height="525" code="musicapplet.class" archive="crypticgraffiti.jar">
<param name="bgcolor" value="ffffff"> <param name="fontcolor" value="000000">
</param> </param> Your browser is not Java enabled. </applet>
Here is the structure of the jar file's contents:
META-INF/
META-INF/MANIFEST.MF
com/
com/crypticgraffiti/
com/crypticgraffiti/music/musicapplet
com/crypticgraffiti/music/GetNotes.class
com/crypticgraffiti/music/InstList.class
com/crypticgraffiti/music/Mode.class
com/crypticgraffiti/music/MusicCreator.class
com/crypticgraffiti/music/OctaveTransformer.class
com/crypticgraffiti/music/Phrase.class
musicapplet/MusicApplet$playerThread.class
musicapplet/MusicApplet.class
(Musicapplet.class is the main class)
When I attempt to run from command prompt, I get:
"Error: Could not find or load main class crypticgraffiti.MusicApplet"
When I attempt to load via html:
"basic: load: class musicapplet.class not found.
load: class musicapplet.class not found.
java.lang.ClassNotFoundException: musicapplet.class
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassNotFoundException: musicapplet.class
security: Accessing keys and certificate in Mozilla user profile: null"
I have tried every possible variation for the 'code' element of the applet tag (package.mainclass.class, mainclass, mainclass.class, etc). I have also tried compiling with JDK 1.6 and this didn't change anything. I've tried clearing out the cache of temporary files using the java control panel settings, and have verified that my browser can run other applets using JRE 6 and 7.
I've tried some different ways of distributing the applet, also: putting all the class files in the folder with the html file, putting the classes in a source folder in the same folder as the html file, and finally putting a jar in the same folder as the html file (which really seems the simplest).
Any help at all would be most appreciated! This applet is a very cool and original music creating app that draws heavily on the JFugue API. It's a shame that I can't get it online for people to play with!

Cryptic Graffiti wrote:
Here is the structure of the jar file's contents:
META-INF/
META-INF/MANIFEST.MF
com/
com/crypticgraffiti/
com/crypticgraffiti/music/musicapplet
com/crypticgraffiti/music/GetNotes.class
com/crypticgraffiti/music/InstList.class
com/crypticgraffiti/music/Mode.class
com/crypticgraffiti/music/MusicCreator.class
com/crypticgraffiti/music/OctaveTransformer.class
com/crypticgraffiti/music/Phrase.class
musicapplet/MusicApplet$playerThread.class
musicapplet/MusicApplet.class
(Musicapplet.class is the main class)
Please note that class names are case sensitive so "MusicApplet" is not same as "Musicapplet" or "musicapplet". Your applet tag should have fully qualified class name (without quotes) and should look like this:
<applet width=400 height=525 code=musicapplet.MusicApplet archive="crypticgraffiti.jar">
</applet>
The JAR should be in the same directory as your HTML file. While launching from command line, you can also check if your JAR file is getting included in classpath.
Thanks,
Nitin

Developer 10g error Java.Lang class not found

Hi
My application is live on static IP but when i try to access it from some systems i get the error after downloading Jinitiator
Java.lang class not found exception:Oracle forms engine main
is this problem of browser or something else? how can i solve
Regards

Hi
My application is live on static IP but when i try
to access it from some systems i get the error after
downloading Jinitiator
ava.lang class not found exception:Oracle forms
engine main
is this problem of browser or something else? how can
i solve
RegardsSee the JInitiator "Proxies" configuration tab from the control panel, try checking the "Use Browser Settings" checkbox, that does the trick sometimes.
Tony

Class not found error!!!

Hello,
I wrote a program that would read data from a file (present in one of my folders). I developed it as an applet and am able to see the result in appletviewer, but unable to see it in the browser(IE6-WIN2000). I did the HTMLConverter procedure and saw that it worked for all other files except this. The error it gives is:
load: rdbyte class not found
However, this class file is located in the same folder. And all the necessary methods like init() etc are present in my program.
Please help me!!!
Thanks
NS

Do you have used any other package then default package?
Look at the documentation and search something like this:
<applet>
<param name="code" value="yourClass.class">
<param name="codebase" value="classFileDirectory">
</applet>
Your applet must be signed to read or write file from your filesystem.

Class not found in signed applet

Hello
I am using a signed applet and am getting a class not found exception
this works fine when i run it in the IDE but get the exception when i try to load the applet from the web browser in the application.
java.lang.ClassNotFoundException: MyApplet
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:162)
at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:123)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:566)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:619)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:548)
at sun.applet.AppletPanel.run(AppletPanel.java:299)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.io.IOException: open HTTP connection failed.
at sun.applet.AppletClassLoader.getBytes(AppletClassLoader.java:265)
at sun.applet.AppletClassLoader.access$100(AppletClassLoader.java:43)
at sun.applet.AppletClassLoader$1.run(AppletClassLoader.java:152)
at java.security.AccessController.doPrivileged(Native Method)
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:149)
... 9 more
I have my applet code in the applet folder
here is my jsp call
<applet code="MyApplet" codebase="../applet" archive="SMyApplet.jar" width=400 height=400>
</applet>
here is my applet code
package applet;
import java.applet.*;
import java.awt.*;
public class MyApplet extends Applet
public void paint(Graphics g)
g.drawString("Generate Me",50, 50);
}

If i do
<APPLET CODE="xxx.class" CODEBASE="." ARCHIVE = "skshrad.jar , javax.jar" WIDTH=500 HEIGHT=500>
is it correct?
because it still appeared class not found error..
This is a signed applet
thanks..
i try to put 2 directories in a jar also did not work..

Applet java.rmi.RemoteException class not found

Hi,
my applet uses the RMI connection to server. Applet working fine with appletviewer. i try to load my applet in IE its giving class not found error.
error message :
java.lang.ClassNotFoundException: java.rmi.RemoteException
     at com/ms/vm/loader/URLClassLoader.loadClass
     at java/lang/ClassLoader.loadClassInternal
     at comp345/lab5/InventoryApplet.init
     at com/ms/applet/AppletPanel.securedCall0
     at com/ms/applet/AppletPanel.securedCall
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.run
     at java/lang/Thread.run
any idea, about this.
-Thanks

I found the solution for this. my IE browser is not having java RMI plugin. this plugin you can download from IBM or Microsoft site.
IMB site download file name.
RmiPatch.zip

Java class not found in IE

When I run any Java applet using IE 5 I get an error. For example, when I open
C:\j2sdk1.4.0\demo\applets\Clock\example1.html
I get
load: class Clock not found.
on the browser's status bar.
Can I get any help? Thanks in advance.

This isn't so much a regular classpath issue, as it is an applet running in a browser. The html file that references the applet must reference it correctly (something like <applet codebase="Clock.class">) and the Clock.class file must exist at the referenced directory. In the example above, it would need to live in the same directory as the html file lives. Also, it may or may not work depending on whether you're using Sun's Java Plug-in versus IE's own JVM against a class compiled with and using Sun's JDK version 1.4.

Class not found (older computer/browser)

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