Applet Not found in Tomcat

Hi, I am using tomcat and put a ChatApplet.class under the directory ..../YYY/WEB-INF/classes/abc, and ChatApplet.class like this:
package abc,
public class ChatApplet extends Applet{
And a JSP under the /YYY/chat directory like this:
<applet CODE=abc.ChatApplet.class>
</applet>
How the JSP can't show the Applet and it said "Applet Not Found"
PLEASE HELP

Have you set up the context for this in your tomcat
config files.
Check out
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/appdev/index.html
For set up information.
Amlan

Similar Messages

Problem : applet not found for installation

After downloading cap file i try to create applet instance and select it.My script file that i send to apdutool look like this
powerup;
//then select the installer applet using this command
0x00 0xa4 0x04 0x00 0x09 0xa0 0x00 0x00 0x00 0x62 0x03 0x01 0x08 0x01 0x7f;
//then create wallet instance as
0x80 0xb8 0x00 0x00 0x0b 0x09 [here wallet applet AID]
//then select the wallet applet
0x00 0xa4 0x04 0x00 lc [here wallet applet aid that i specify while converting to cap file]
powerdown;
when i send this script file to jcre then for select installer applet sw1 sw2 is 9000 but for second apdu command means creation applet returns apdu response that is 6443 means applet not found for installation and similarly third apdu command responses is not proper
i don't know where is problem bcoz the script file that i create from scriptgen tool by giving cap file as input runs properly by jcre but when after appending my own apdu commands e.g. create applet,debit or credit then apdu responses r not valid.................plz help me that why all this happened
thanks

To use the JCRE you are running the reference implementation. That tool needs you to download the CAP file and the CAP components. That's provided in the results from the scriptgen tool.

[SOLVED] network-manager-applet not found

Hi, I'm quite noob here, and I'm trying to install network-manager-applet with no luck;
So far I've done
# pacman -S network-manager-applet
and I got
resolving dependencies...
looking for inter-conflicts...
Targets (1): network-manager-applet-0.8-1
Total Download Size: 1.01 MB
Total Installed Size: 4.35 MB
Proceed with installation? [Y/n] y
:: Retrieving packages from extra...
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from mi.mirror.garr.it : Not Found
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from ftp.nluug.nl : Not Found
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from ftp.hosteurope.de : Not Found
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from ftp-stud.hs-esslingen.de : Not Found
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from archlinux.puzzle.ch : Not Found
error: failed retrieving file 'network-manager-applet-0.8-1-x86_64.pkg.tar.gz' from ftp.surfnet.nl : Not Found
warning: failed to retrieve some files from extra
error: failed to commit transaction (Not Found)
Errors occurred, no packages were upgraded.
so I tried to download the package itself and install it with
pacman -U network-manager-applet-0.8-2-x86_64.pkg.tar.xz
and the answer was
loading package data...
checking dependencies...
error: failed to prepare transaction (could not satisfy dependencies)
:: network-manager-applet: requires mobile-broadband-provider-info
what to do?
i cannot find in the repos the package mobile-broadband-provider-info
thank you in advance
Last edited by lsk (2010-03-10 10:15:21)

Update your system - "pacman -Syu". The clue is that the file you manually downloaded is different to the one pacman is trying to get.

Bean not found in Tomcat

Hi, I am using tomcat 4 on NT. I am getting the bean not found error when trying to execute the following JSP. I have put the bean in web-inf\classes directory. Somewhere in this forum I found that my bean class should be in a package.
Please help with this code.
<html>
<head><title>First JSP</title></head>
<body>
<%@page language="java"%>
<jsp:useBean id="mybean" scope="page" class="FirstBean"/>
<%=mybean.getName()%>
</body>
</html>

Hi, Sudha,
Is that we must use import class before we use Bean in JSP? I read some example code and they do not have that import part, and I get the same cannot find class error. I am new to JSP, please tell me if we must import our bean class or there has other ways to handle it? thank you very much.
Tony

Why is my applet not found when published by servlet-easy one?!

Hi! I have a servlet that publishes an html page with the applet tag inside it but it never finds the applet whenever it publishes the html. Can somebody please tell me where is the applet code supposed to be placed in jsdk2.1?! I placed it in the same folder as the servlets, as the .bat files, webpages, Web-inf but still it is not found. This is the Servlet code:
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class chat extends HttpServlet{
     public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException
          String user="",host="http://195.13.94.38/ChatApplet";
          try{ user=req.getParameter("user");
          PrintWriter output=res.getWriter();
          res.setContentType("text/html");
          output.println("<html><body><APPLET CODE="+host+" WIDTH=500 HEIGHT=400><PARAM NAME=user VALUE="+user+"></APPLET></body></html>");
          output.close();
}catch(Exception tru){}
I even tried to have the applet code= ChatApplet and still no success.
Thank you

I don't know if you fixed this already, but if you haven't, try:
String chat = "ChatApplet";
String codebase = "http://195.13.94.38";
out.println("<APPLET CODE=" + chat + " CODEBASE=" + codebase + " WIDTH= ........the rest of the code...>");
Give it a try and good luck.

ConfigureListener class not found exception (tomcat 5.5.4/jdk 1.5)

Hi,
I'm seeing this error in the Tomcat logs upon Tomcat startup:
SEVERE: Error configuring application listener of class com.sun.faces.config.ConfigureListener
java.lang.ClassNotFoundException: com.sun.faces.config.ConfigureListener.
I added this ConfigureListener reference to my conf/web.xml file having perused the Forum for a fix to this error in the Tomcat logs:
.SEVERE: StandardWrapper.Throwable
java.lang.NullPointerException
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
What I don't get is my CLASSPATH env. var. clearly shows jsf-impl.jar. I double-checked the path and that com.sun.faces.config.ConfigureListener is contained in jsf-impl.jar and both looked A-OK.
Also saw someone referencing changing the DOCTYPE references from Faces Config 1.0 (to 1.1) and web-facesconfig_1_0.dtd (to 1_1). Tried this but no improvement.
How could the Tomcat engine say a class isn't there when the CLASSPATH says it is??
What is also interesting is that I have the same JSF app running like a champ under tomcat 5.0.19 and have no reference to ConfigureListener class in the conf/web.xml. Not sure why tomcat 5.5.4 is unhappy with the JSF context when tomcat 5.0.19 isn't??
--TIA for any clarifications, from pluto

Adam,
Thanks! I did the java environment/container clean-up you suggested. Also, for reasons unbeknownst to me, when I had two WAR files under webapps, tomcat was unhappy on startup (still seeing Faces servlet startup error). So I removed the 2 WAR files, and kept the two expanded directories (assoc. with the 2 WAR files) under webapps (as had already been created by tomcat) and all is well. I admit bewilderment over the concept of already expanded WAR files working versus not expanded WAR files not working!? Thanks again for your help.

Web Applet Not Found

I hav installed the J2SDK compiler to compile my test.java. Then it created succesfully the test.class. Then I make it viewable on web by this following code <applet code="test.class" width=980 height=550></applet>. My problem is when I view it on web from my pc, it is viewable. But when I try it on other pc, the applet didn't come out. It's only show grey box with the info "no load test found". How to fix it? Thanks

Show the code!
And remember to format it properly: http://forum.java.sun.com/help.jsp

Dll not found when Tomcat run as an NT service

I am running Tomcat 4.1.27 j2sdk 1.4.2 on Windows 2000 SP4.
I am trying to connect to a datacom database using jdbc.
When I run Tomcat in a separate DOS window - the database connection works fine.
When I run Tomcat as an NT service I get the following error:
org.apache.jasper.JasperException: no cadcdb32 in java.library.path
The service is logged in as an administrator.
cadcdb32.dll is located in C:\Program Files\CA\AdvantageDatacomServer5.0\
This directory is in the PATH environmental variable.
The batch file that starts the DOS window (which works) is:
C:\j2sdk1.4.2\bin\java.exe -jar -Duser.dir="C:\Program Files\Apache Group\Tomcat 4.1" "C:\Program Files\Apache Group\Tomcat 4.1\bin\bootstrap.jar" start
How can I have Tomcat find the dll when run as a service ?
Thank you

Create new user or use an existing user and Log On to this user in the Service {Properties->Log On->This account}.

Class not found...applet

Hi all,
I am trying to load applet from remote machine, the applet giving the Class not found even though the is proper path setting. It also giving the error..
open http connection failed...
Wating for reply.
Sandeep Kutwal.

Hi,
First of all thanks to you for replying for my request.
I had tried the option given by u but it will not work at all on remote server ,it work without any error on my local tomcat (Linux Server) .
But sometimes it displays on remote server,showing random behaviour of showing, not showing. Is there any Security permission issue ? .
I am using winXP,JRE version 1.5.0_06 Java HotSpot(TM) Client VM.
It is giving error when i upload it to my remote server also path is correct .
Please reply me for this dought . The remote applet shows following errors on the applet java console .
basic: Stopping applet ...
basic: Removed progress listener: sun.plugin.util.GrayBoxPainter@15aee9
basic: Finding information ...
basic: Releasing classloader: sun.plugin.ClassLoaderInfo@ca8327, refcount=0
basic: Caching classloader: sun.plugin.ClassLoaderInfo@ca8327
basic: Current classloader cache size: 1
basic: Done ...
basic: Joining applet thread ...
basic: Destroying applet ...
basic: Disposing applet ...
basic: Quiting applet ...
basic: Joined applet thread ...
basic: Unregistered modality listener
basic: Registered modality listener
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@ca8327, refcount=1
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@1103a97
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
network: Connecting h/NewsApplet.class with proxy=DIRECT
basic: WARNING: error reading http:cache.
network: Connecting with proxy=DIRECT
network: Connecting .....proxy=DIRECT
load: class NewsApplet.class not found.
java.lang.ClassNotFoundException: NewsApplet.class
     at sun.applet.AppletClassLoader.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)
Caused by: 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)
     ... 10 more
basic: Exception: java.lang.ClassNotFoundException:
Message was edited by:
SandeepKutwal
Message was edited by:
SandeepKutwal

Applet class not found error

Dear Techie,
I have one Applet , while calling that applet in jsp , i am getting the following error ,
load : class com.soft.Text.class
File not found exception
Here that browser telling that not finding the applet class file while loading , In my war file that applet class file is there ,
Is there any other solution to resolve or suggestion.?
Im importing some of the third party library like DOM and all , i have added all the jar files , so what do to ?
Regards,
Thangavel.L

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 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

I'm crazy!Applet and JNA Error:Library 'jnidispatch' was not found!

Hi all,
sorry to bother you, I really have no idea how to do JNA and Applet. I'm hardly mazy, man.
Every time it will throw an error to me :
Exception in thread "thread applet-JNAApplet-1" java.lang.UnsatisfiedLinkError: Library 'jnidispatch' was not found by class loader sun.plugin2.applet.JNLP2ClassLoader@291aff
     at com.sun.jna.Native.getWebStartLibraryPath(Native.java:858)
     at com.sun.jna.NativeLibrary.<clinit>(NativeLibrary.java:576)
     at com.sun.jna.Library$Handler.<init>(Library.java:140)
     at com.sun.jna.Native.loadLibrary(Native.java:372)
     at com.sun.jna.Native.loadLibrary(Native.java:357)
     at JNAApplet.init(JNAApplet.java:15)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)My program is so easy, I just want use Applet to revoke JNA and use the JNA to load a native lib.
here is the structure of my program:
Applet code :
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
import com.sun.jna.Native;
public class JNAApplet extends JApplet {
     public static Kernel32 kernel32 = null;
     @Override
     public void init() {
          createGUI();
          kernel32 = (Kernel32)Native.loadLibrary("Kernel32", Kernel32.class);
          if (kernel32 == null) {
               System.out.println("load kernel32 fail!");
          } else {
               System.out.println("load kernel32 success!");
     private void createGUI() {
          JPanel panelCenter = new JPanel();
          JButton butTest = new JButton("Test");
          panelCenter.add(butTest);
          setContentPane(panelCenter);
}When I run it on debug mode, it is ok! but when I deploy it , it will throw above error message to me.
My Applet html:
<html>
     <head>
          <title>JNA Applet</title>
     </head>
     <body>
     <script src="deployJava.js"></script>
    <script>
        var attributes = { code:'JNAApplet', width:300, height:300} ;
        var parameters = {jnlp_href: 'JNAApplet.jnlp'} ;
        deployJava.runApplet(attributes, parameters, '1.5');
    </script>
     </body>
</html>File 'JNAApplet.jnlp':
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    <information>
        <title>JNA Applet</title>
        <vendor>Steven</vendor>
    </information>
    <resources>
        <j2se version="1.5+"
              href="http://java.sun.com/products/autodl/j2se" />
        <jar href="JNAApplet.jar" main="true" />
    </resources>
    <applet-desc
         name="JNA Applet"
         main-class="JNAApplet"
         width="300"
         height="300">
     </applet-desc>
     <update check="background"/>
</jnlp>     I really have no idea. and I can't search any usefull infomation from Google and officer site.
Can any one help me? Thank you very much!!!!

Hi AndrewThompson64:
Did you mean the JNA project? Or are you refering to JNI, or ..something else?Yes, I mean is that I wanna jna.jar to replace JNI to code with Applet. I want Applet can run native library(.dll files).
That reads like so much nonsense to me.Sorry fo that.
Was there any 'caused by' part that you trimmed? I expected to see something to do with 'Security' or 'AccessControl'.Sorry, I can't saw any 'cause by' subsentence there. This message is just gain from Applet Console.(Is there any method to gain more message?)
About 'Security' and 'AccessControl' I just modify my java.policy file to allpermission. Subsequently, I signed all jar files.
For now I have 3 jar files(all have been signed ):
--example.jar : for this little program.(code include applet and application entry)
--jna.jar
--win32-x86.jar : include kernel32.dll and jnidispatch.dll for win32 and x86.
and 2 JNLP files:
--JNAApplet.jnlp the entry is JNAApplet.class (this jnlp does not work)
--JNAApp.jnlp     the entry is JNAApp.class (this jnlp works)
And for now new error message show like this:
Exception in thread "thread applet-JNAApplet-1" java.lang.UnsatisfiedLinkError: Library 'Kernel32' was not found by class loader sun.plugin2.applet.JNLP2ClassLoader@4aeb52
     at com.sun.jna.Native.getWebStartLibraryPath(Native.java:858)
     at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:97)
     at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:228)
     at com.sun.jna.Library$Handler.<init>(Library.java:140)
     at com.sun.jna.Native.loadLibrary(Native.java:372)
     at com.sun.jna.Native.loadLibrary(Native.java:357)
     at JNAApplet.init(JNAApplet.java:12)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Did you mean invoke?
Revoke: To annul by withdrawing.
Invoke: To call on.Yes, you got it. Thank you.
The JNLP file is invalid. ..I was about to put my 'standard' text here, but I'm sick of saying it. Search the forum for my posts - 50% of them, at least, mention validation and how to go about it.
Also, the applet-desc requires a documentbase.Thank you, I really think I have some invalid section. But I can't find it, and you said 'Search the forum for my posts - 50% of them...' , I can read the JNLP structure on site of sun and I can to read you post too(I'm doing like this).*I only want to know about how to load "native lib like *.dll" properly*.
What 'officer site'?I mean jna project site. Sorry for ambiguity.
Please fix that sticky '!' key. One '!' indicates astonishment, while two or more typically indicates a bozo. Thanks for your advice. Because I tried to find solution do my best lasting two days. I got nothing. I'm sadness.
here post my new files:
import javax.swing.JFrame;
import com.sun.jna.Native;
public class JNAApp {
     public static Kernel32 kernel32 = null;
     public static void main(String[] args) {
          // TODO Auto-generated method stub
          kernel32 = (Kernel32)Native.loadLibrary("Kernel32", Kernel32.class);
          JFrame frame = new JFrame();
          frame.setSize(500, 500);
          frame.setVisible(true);
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JPanel;
import com.sun.jna.Native;
public class JNAApplet extends JApplet {
     public static Kernel32 kernel32 = null;
     public void init() {
          createGUI();
               kernel32 = (Kernel32)Native.loadLibrary("Kernel32", Kernel32.class);
     private void createGUI() {
          JPanel panelCenter = new JPanel();
          JButton butTest = new JButton("Test");
          panelCenter.add(butTest);
          setContentPane(panelCenter);
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    <information>
        <title>JNA Applet</title>
        <vendor>Steven</vendor>
    </information>
    <resources>
        <j2se version="1.5+"
              href="http://java.sun.com/products/autodl/j2se" />
         <jar href="JNAApplet.jar" main="true"/>
         <jar href="jna.jar"/>
    </resources>
       <resources os="Windows" arch="x86">
         <nativelib href="win32-x86.jar"/>
         <nativelib href="kernel32.jar"/>
       </resources>
    <applet-desc
         documentBase=""
            name = "success"
         main-class="JNAApplet" width = "200" height = "200">
     </applet-desc>
     <update check="background"/>
       <security>
         <all-permissions/>
       </security>
</jnlp>
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    <information>
        <title>JNA Applet</title>
        <vendor>Steven</vendor>
    </information>
    <resources>
        <j2se version="1.5+"
              href="http://java.sun.com/products/autodl/j2se" />
         <jar href="JNAApplet.jar" main="true"/>
         <jar href="jna.jar"/>
    </resources>
       <resources os="Windows" arch="x86">
         <nativelib href="win32-x86.jar"/>
         <nativelib href="kernel32.jar"/>
       </resources>
    <application-desc
         main-class="JNAApp">
     </application-desc>
     <update check="background"/>
       <security>
         <all-permissions/>
       </security>
</jnlp>     Thanks & Best Regards,
Su Heng

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

Class not found exception in Applet

Hi,
I coded an Applet which is running perfectly in Forte. But if I try it in the IExplorer, I get the following exception, if I include the class java.util.Random, which I need to use. If I implement it, following exception is posted:
Exception occurred during event dispatching:
java.lang.NoSuchMethodError: java/util/Random: method nextInt(I)I not found
How can I use the class without getting this exception? Do I have to use a plugin (if, how?)?

Thank you, but there are still problems:
I cannot use getInt, for I get an compilation error. I
could also not find Random.getInt in the API.
No method found matching getInt(int)
the method is called nextInt()

"class not found error" and applets ...

To run an applet inside an html page using the embedded oc4j i have to copy the library containing the applet to the same directory as the html page. Otherwise i get a class not found error....Is there a better way of doing this?
thanks in advance for any advise
owen

Hi,
you should be able to reference the JAR file from teh HTML tag. If not then this sounds like a bug that should be filed
Frank

Applet Not found in Tomcat

Similar Messages

Maybe you are looking for