Applet can't load on browser

my applet can't seem to load on safari 5.1.2 or google chrome on my mac osX 10.6.8 although I have tried updating all the softwares.

Thanks, i'll give it a try...
Do you also have an answer for the following problem?:
My applet needs to retrieve several images from different servers. I load the images as ImageIcons. I don't want to add policy entries, because then i'll have to add them on every computer that uses the applet. Instead, what i would like is for the applet to retrieve the image from the server (the server has access to everything). Do you know how this is possible?

Similar Messages

Applet can not run in browser, but it wroks in appetviewer. Why?

I wrote a very simple applet, and it works well when I use appletviewer. But when I use browser to open the html file which contains the applet, it always gives no class found error. My browsers are IE5.0 and Netscape4.77. Hwo can I make the applet run in browser?
Quick response is greatly appreciated.

see you have to put the proper code base in your html file.check if your browser is java enabled or not.Java plugin comes with IE 5 and it automatically get installed if you won't disagree with that.Check in optin menu of ur browser that java is enabled or not.
Applet works fine with all browser.
2nd thing when you r running applet through appletviewer,it runs as an application from your local JVM while running through browser means you are running applet through browser 's JVM.

Just got a I PAD can i load a browser on it ? and how

just got a I PAD can I load a web browser on it and how please

Atomic Browser, iCab Mobile...and more.
http://www.appshopper.com and do a search for browsers and restrict it to iPad.

Applet can't Load a file from outside it's JAR??

My loading code: (note: I have also tried ...getResourceAsStream("menu.properties");... )
codeBase = getCodeBase();
InputStream is = getClass().getResourceAsStream( new URL( codeBase, "menu.properties" ).toString() );
if( is == null )
System.err.println( "Couldn't load Menubar property file:: " + new URL( codeBase, "menu.properties" ).toString());
else this.properties.load( is );
is is always null. When 'menu.properties' is inside the JAR that contains my applet class files it loads it with the direct method (getResourceAsStream("menu.properties");) and everything is good.... but when it is outside the JAR no dice.
Anybody see what is wrong or know something I need to know before I can do this?
Thanks alot,
seth

>
My loading code: (note: I have also tried
...getResourceAsStream("menu.properties");.. )
codeBase = getCodeBase();
InputStream is = getClass().getResourceAsStream( new
URL( codeBase, "menu.properties" ).toString() );
if( is == null )
System.err.println( "Couldn't load Menubar property
y file:: " + new URL( codeBase, "menu.properties"
).toString());
else this.properties.load( is );
is is always null. When 'menu.properties' is
inside the JAR that contains my applet class files it
loads it with the direct method
(getResourceAsStream("menu.properties");) and
everything is good.... but when it is outside the JAR
no dice.
Anybody see what is wrong or know something I need to
know before I can do this?
Thanks alot,
seth
Solved my own problem:
docBase = getDocumentBase();
InputStream is = new URL( docBase, "menu.properties" ).openStream();

Applet will not load in browser Unsupported major.minor version 48.0

I found this page, and many others like it from search the net:
http://forum.java.sun.com/thread.jspa?forumID=421&threadID=345619
When I first got java installed 1.4.2_02, and that is the directory I always work in.
I HAVE installed:
jre 1.5.0
and
JMF2.1.1e
HOWEVER!!! When i go to the Java icon in the toolbar and dub-click it states:
Java(TM) Plug-in: Version 1.3.1_13
Using JRE version 1.3.1_13 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\javasojava
Proxy Configuration: no proxyAdditionally, if I go to windows Control panel it states:
Java Plug-in 1.3.1_13
My very simple applet program does compile with appletviewer, but
throws this error in browser.
Needless to say, this is extremely frustrating.
Have no other problems building java apps or anything classpath related that am aware of.
Here it is:
CLASSPATH=.;C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;.;.;C:\j2sdk1.4.2_04\jre\lib\ext\sound.jar;C:\j2sdk1.4.2\2
Thank you!

here is what I get when I open the page you mentioned:
==============================================
Error loading class: ArcTest
java.lang.NoClassDefFoundError
java.lang.ClassNotFoundException: ArcTest
     at com/ms/vm/loader/URLClassLoader.loadClass (URLClassLoader.java)
     at com/ms/vm/loader/URLClassLoader.loadClass (URLClassLoader.java)
     at com/ms/applet/AppletPanel.securedClassLoad (AppletPanel.java)
     at com/ms/applet/AppletPanel.processSentEvent (AppletPanel.java)
     at com/ms/applet/AppletPanel.processSentEvent (AppletPanel.java)
     at com/ms/applet/AppletPanel.run (AppletPanel.java)
     at java/lang/Thread.run (Thread.java)Why.. because I refuse sun to run <applet tag applets. As with the msjvm the <applet
tag is history so I don't understand why SUN would use depreceated html code in
their 1.5 examples.
Check what I said about versioning and use the object tag and try to run the following
applet:
http://forum.java.sun.com/thread.jspa?threadID=603571
second post

Java applet won't load on browser

God, I've never been this frustrated with Java before.
Ok, I created an applet in my eclipse IDE and ran it. It works. I decided to create a HTML file so that the applet would display on my firefox browser (my browser has no problem displaying java applets. All settings are fine).
This is my HTML code:
<html>
<title>Site Selector</title>
<body>
   <applet code = "SiteTesting.class" width = "300" height = "75">
   </applet>
</body>
</html>Now, my eclipse IDE creates a "src" or source folder and a bin folder. The bin folder is where the class files are kept. The HTML file was in the src folder. When I ran it, I got this:
load: class SiteTesting.class not found.
java.lang.ClassNotFoundException: SiteTesting.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)
Caused by: java.io.FileNotFoundException: F:\Workspace\RefreshalCourse\src\networking\SiteTesting\class.class (The system cannot find the path specified)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(Unknown Source)
     at java.io.FileInputStream.<init>(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 9 more
Exception: java.lang.ClassNotFoundException: SiteTesting.classMakes sense, considering the class file isn't in the src folder. So I copied the class files into the src folder, ran the HTML file, and I got this:
java.lang.NoClassDefFoundError: SiteTesting (wrong name: networking/SiteTesting)
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClassCond(Unknown Source)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.NoClassDefFoundError: SiteTesting (wrong name: networking/SiteTesting)Huh. I took the html file and placed it in the bin folder where the class file was and I ran it and got the exact same error message above.
I'm obviously doing something wrong. So, any help in fixing this will be most appreciated. Cheers

Your java file starts with:
package networking;Right?
If so, the fully qualified name name of your class is networking.SiteTesting.
Use this in the applet tag:
<applet code = "networking.SiteTesting" width = "300" height = "75">Suppose you have your html file in the directory zzz.
Put SiteTesting.class in zzz/networking/, like this:
zzz/whatever.html
zzz/networking/SiteTesting.class

Applet can't load when using Mozilla Firefox and IE Tab

I have a page that includes an applet
I must include page within the IE Tab rules for auto procces because of design aspects
When the page loads, Firefox tells: load: class XXXXX not found
This very same page does not fail to load applet if not included in IE Tab Rules
I tried the latest versions of Firefox (3.0beta) and IE Tab(1.5)
It appears to be a Mozilla Firefox problem
But, any way, any idea?

I just discover Mozilla Firefox does not work with deprecated Applet tags.
I must use Object tags.
Since Netscape and Safari does not acept properly Object tags, i decide to use a javascript to switch between both methods.
Here a sample:
<%
CARPETA = Request.Form("UltimoArchivoCarpeta")
ArchivoProcesar = Request.Form("UltimoArchivoArchivo")
ArchivoProcesar = CARPETA & ArchivoProcesar
ArchivoProcesar = replace(ArchivoProcesar,"\","\\")
URLACTUAL = Request.ServerVariables("SERVER_NAME")
URLACTUAL = "http://" & URLACTUAL
%>
<script language="javascript">
var _app = navigator.appName;
if (_app == 'Microsoft Internet Explorer') {
document.write('<OBJECT ',
'classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"',
' width="0" height="0">',
'<PARAM name="code" value="JUploadApplet.class">',
'<PARAM name="archive" value="<%=URLACTUAL%>/java/ddsApplets.jar">',
'<PARAM name="file" value="<%=ArchivoProcesar%>">',
'<PARAM name="urlUpload" value="<%=URLACTUAL%>/VENTAS_UPLOAD/ConfirmarUploadPedidos.asp">',
'<PARAM name="urlRedir" value="<%=URLACTUAL%>/VENTAS_UPLOAD/MostrarPreviewArchivo.asp">',
'<PARAM name="urlFault" value="<%=URLACTUAL%>/SimpleError.asp">',
'</OBJECT>');
else { 
document.write( '<APPLET code="JUploadApplet.class"',
'archive="<%=URLACTUAL%>/java/ddsApplets.jar"',
' width="0" height="0">',
'<PARAM name="file" value="<%=ArchivoProcesar%>">',
'<PARAM name="urlUpload" value="<%=URLACTUAL%>/VENTAS_UPLOAD/ConfirmarUploadPedidos.asp">',
'<PARAM name="urlRedir" value="<%=URLACTUAL%>/VENTAS_UPLOAD/MostrarPreviewArchivo.asp">',
'<PARAM name="urlFault" value="<%=URLACTUAL%>/SimpleError.asp">',
'</APPLET>');

I can't load applets...

I have the "red x problem"... I have the latest updates of the JVM and I use the IE browser. The problem is I can't load ANY applets, I even tried it with my firewall turned off and all the suggestions on the Java help pages. Here's the dump from the Java-console when trying to open a game on the Java homepage: (sorry that some of it is in swedish)
Java Plug-in 1.5.0_06
Anv�nder JRE-version 1.5.0_06 Java HotSpot(TM) Client VM
Anv�ndarens hemkatalog = C:\Documents and Settings\Tomas
inl�sning: klassen Game.class finns inte.
java.lang.ClassNotFoundException: Game.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
Exception in thread "Thread-12" java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletException(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Any solutions would be greatly appreciated...

I've got the exact same problem and I've been trying everything for monthes, clean installs, firefow, opera, ie, ie7.. Unsuccessfully, and I installed java just after a fresh win xp sp2 install, and it's up to date.
I really don't know what to do and I hope it will be corrected in future releases.

JVM crashed when applet is loaded in browser

when applet is loaded in browser after some time JVM crashedwith hs error log.
i am using
JRE 1.6.0_10,
1GB RAM,
XP SP3,
IE6
Error log
# An unexpected error has been detected by Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d02bd1d, pid=6032, tid=4772
# Java VM: Java HotSpot(TM) Client VM (11.0-b15 mixed mode windows-x86)
# Problematic frame:
# C [awt.dll+0x2bd1d]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

It appears from the following statement that a native code process failed when called by the jvm.
The crash happened outside the Java Virtual Machine in native code.Not much more can be said. The cause does not appear to Java code.

Can i load a class in subdirectoy inside a jar file using applet tag?

hi every one.. thank you for reading ... i am really in dire need for the solution..
my problem is that i have a jar file contianing a package which inturn contains my applet class...
i am trying to access this applet class using a applet tag in html file. this html file is in same directory as the jar file. i am having no problems in windows but when i am doing this in linux apache server i was getting class not found exception. (already checked the file permissions). and when i am successful when using simple package directory instead of jar file . so gist of my quesition is "can i load a class in subdirectoy inside a jar file using applet tag in a html file"?

When you tested in Windows were you using Internet Explorer? On Linux you will be using a different browser, usually Mozilla of some version, or Firefox. Note that the HTML tags for applets will be different between the browsers if you are using the object tag. Principally the classid value for the object tag will differ between Firefox and Internet Explorer.

Applet don't load, can't find the class, but is on the archve list. Tomcat5

Hi I've an applet in a JSP that runs on a Tomcat 5.5 under Windows Vista. My problem is that my page can't load the applet because a connection refused exception.
network: No se ha encontrado entrada de cach� [URL: http://localhost:2000/globalcard/jars/com/syc/client/ScanApplet.class, versi�n: null]
network: Conectando http://localhost:2000/globalcard/jars/com/syc/client/ScanApplet.class con proxy=DIRECT
network: No se ha encontrado entrada de cach� [URL: http://localhost:2000/globalcard/jars/com/syc/client/ScanApplet.class, versi�n: null]
network: Conectando http://localhost:2000/globalcard/jars/com/syc/client/ScanApplet.class con proxy=DIRECT
cargar: clase com.syc.client.ScanApplet no encontrada.
java.lang.ClassNotFoundException: com.syc.client.ScanApplet
     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)
basic: Excepci�n: java.lang.ClassNotFoundException: com.syc.client.ScanAppletmore....The strange thing is that if I copy &paste the url in a browser window, it finds the jar and ask to open or save. So I suppouse is something on the sandbox of the applet or something like that. Why I can find the jar using the URL, but why the applet can't? Other thing that I don't know if is important for this is that I can't find the page using my IP or 127.0.0.1, it only works using localhost.
And yes, my jar is signed. In fact it works perfect on a non Windows-Vista machine, so I suppouse is something with the browser here or something like that. The port is on the exceptions list of the firewall but I've even disabled the firewall with no changes. I can load applets from other hosts, but I can't pointing to my machine, so I don't know if is windows, tomcat, or whatever. Please help!
I'm using Tomcat 5.5, JK 1.6 and Windows Vista as server. Using the 2000 port which is on the exceptions list in the firewall. I have also IIS7, but it gives no problems. I mean if I do http://myhost (port 80) the IIS7 initial page shows, but if I use http://myhost:2000 (which is the port configured in Tomcat) then can't find the page. I don't know if is something on the firewall, on the tomcat, or what ever.
Please help!

I've seen this sort of thing happen when the server is misconfigured and reports the content MIME type incorrectly.
I'd suggest using a tool like curl or the Firefox LiveHeaders extension, to confirm that that's correct.

Can't load applet from a kerberized server

Hi there,
I have the following problem:
There's a java applet served as part of a web application. The User accessing the java applet should be authenticated by the web application. When this is done with basic authentication - the applet works fine.
However when a kerberos authentication is configured on the webserver(using spnego module) - the applet can't be loaded.
I log in to Windows XP using my user and pass. Then using IE I am automatically logged into the web application. I open the page on which the applet is embed, but the JRE can't load it(saying a ClassNotFoundException) The server's access log reveal that the jar can't be loaded because of authentication error:
- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490
- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490
- - [05/Oct/2011:15:19:54 +0200] "GET /peria/Grid.jar HTTP/1.1" 401 490
It seems as if the JRE is having problems authentication itself in front of the server? Could it be that or it is another issue?
Note that I can access the jar file directly via the browser. But when I open the page that has it embed - the applet could not be loaded due to ClassNotFound
Would anyone be so kind as to point me in the right direction?

One more question:
Do I need to configure the JRE on the Client side in order to open the Applet on the kerberized server?
Currently the JRE can't authenticate and the applet is not loaded due to Not authenticated (401) error.
Any advice is greatly appreciated!

Can't load applet

i am new to java applet. i wrote a small applet with japplet. but i can't load it by open html file locally. the html looks like:
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
<TITLE>
HTML Test Page
</TITLE>
</HEAD>
<BODY>
url.Applet1 will appear below in a Java enabled browser.<BR>
<APPLET CODE = "TestApplet1.class" CODEBASE = "./" WIDTH = 500 HEIGHT = 500 NAME = "TestApplet" ALIGN = top VSPACE = 0 HSPACE = 0>
</APPLET>
</BODY>
</HTML>
and TestApplet1.class is sitting at the same directory as the html. what did i miss? thanks for help.

Don't use the applet tag, it's been depreciated. Use the object tag.
For IE it will download the appropriate jre or you download and install it yourselve at this site.
For Mozilla check "about plugin" in the main menu.
<DIV id="dvObjectHolder">Applet comes here</DIV>
<script>
// using xhtml works but javascript to java doesn't work anymore so here is the scripted version on how
// to set the object tag
if(window.navigator.appName.toLowerCase().indexOf("netscape")!=-1){ // set object for Netscape:
     document.getElementById('dvObjectHolder').innerHTML = "        <object ID='jsApplet' classid=\"java:someApplet.class\"" +
                "height=\"100\" width=\"100\" onError=\"changeObject();\"" +
          ">" +
                "<param name=\"mayscript\" value=\"Y\">" +
        "</object>";
}else if(window.navigator.appName.toLowerCase().indexOf('internet explorer')!=-1){ //set object for IE
     document.getElementById('dvObjectHolder').innerHTML =      "<object ID='jsApplet' classid=\"clsid:8AD9C840-044E-11D1-B3E9-00805F499D93\"" +
               "         height=\"100\" width=\"100\" >" +
               "   <param name=\"code\" value=\"someApplet.class\" />" +
               " </object>"
</script>

How can I load an applet using Java Plug-in?

I have written an applet and have tested with appletviewer, but I can't load it from a browser. Ghlin told me that I need to use Java Plug-in to load it. Please tell me how.

Click on the Products and API link at the top left of this page. Download the Java Plugin. Be sure to get the developers version. Inside that developer's version there is a tool called HTMLConverter. Run HTMLConverter on your HTML and it will modify the applet tag in such a way that if the user already has the Java Plugin then it will use it. IF not, then the user will be asked if he wants to download it.

I am running 10.5.8, and just updated my java to java 5 update10. Now my firefox is missing the Java plugin, and I can't load any Java applet at all. When I try it with Safari, it hangs when certain Java applet loads. HELP!!!

Suddenly my Java plugin is missing and i can't load any Java with Firefox at all, even though i have it enabled in the browser! i've tried loading in java embedding plugin, but it doesn't work. what should i do???

It's not in Tools> Add-ons >plugins? Should be Java Plug-in 2 for NPAPI browsers 13.5.0. What are you seeing there? I don't think it's called the embedding plugin any longer.
Might try getting the Firefox 5 standalone application. Trash the current one and replace it. Doing this won't affect your Profile or any settings.
http://www.mozilla.com/en-US/firefox/all.html
If it's enabled, how can it be missing?
If this doesn't work, ask here. No need to register. Make sure you put (Mac) in the title.
http://forums.mozillazine.org/viewforum.php?f=38
Message was edited by: WZZZ
EDIT. Oops, may be different for 10.5.8. Was thinking recent Java update for 10.6. But try installing a new app anyway. In the past, this got me the latest Java plugin.

Applet can't load on browser

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