Buggy handling of APPLET tags in Netscape 6.1 ?

I have run into an irritating problem - apparently a bug in the Netscape 6.1 browser...
Consider the following code...
<HTML>
<script Language=JavaScript>
function Test1()
alert("The applet's current width is:" + document.applets[0].width);
document.applets[0].width=500;
alert("The applet should have been resized to 500 pixels width");
</script>
<BODY onClick="Test1()">
<applet code="Test2.class" width="100" height="100" MAYSCRIPT name="app1" >
</applet>
</BODY>
</HTML>
The applet is a dummy applet
Now I load this page in IE 6...I click the document body, and IE correctly reports the applet width as 100, and resizes the applet width to 500 pixels...
Now I load the page in NS 6.1...The page loads correctly...But when I click the page, there is a slight delay, and then, the applet width is returned as "undefined" by JavaScript no matter how I refer to the applet, or where I place the script...
Also, if I select VIEW >> PREFERENCES >> UNCheck ENABLE JAVA and then reload the Netscape browser, and then reload the page, the applet obviously does not load, but the size is reported correctly as 100...Then without closing the browser I reenable JAVA and then reload the page,the applet loads, the applet's width is reported correctly as 100, and even resizes...But if I close the browser, and then reload the page with JAVA "Pre-enabled" the "undefined" problem crops up again...
I think this may be a serious bug in NS 6.1
I would like to know other opinions on this matter
Sincerely
Srideep Prasad

Netscape 7.02 works fine

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applet tag regarding JAR file

Is there something wrong with the following applet declaration?
<applet code = "Sheep2.class" archive="Sheep2.jar" width = 500 height = 300
ALT="If you could run this applet, you'd see a sky, a field, and a moon.">
Your browser is completely ignoring the <APPLET> tag!
</applet>
Works fine (it seems) on my Windows 98 computer with IE 6.0280, but does not work on the same computer when I access the page calling the applet using AOL's v.9 browser.
I used HtmlConverter to convert the above to Extended version (covering all platforms), and still does not work with AOL's browser. HtmlConverter reported no errors, but now IE shows an error icon in its status bar when I access the page even offline.
Other html files I converted using HtmlConverter work fine with AOL's browser. They don't have "archive" attribute.
What could be going wrong? My guess is JAR file reference is causing problems.

I did more Html Conversion today. I ran one file which didn't show any error mark in the status bar of IE through HtmlConverter. I ran the new file generated by HtmlConverter and an error icon appeared in the status bar of IE. My Java Console didn't show any message. So, it must be an error in the applet related info HtmlConverter generated was not 100% html compliant..
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Javascript to Java using APPLET TAG

Can I call an applet method using Javascript? The applet is exposed through the <APPLET> tag. I can easily do it using MS JVM but Sun JVM doesn't let me do it. I look at the plug-in documentation and it only mention using <OBJECT> when doing Javasript to Java.
Thank you

Possibly. I've never done it myself but I've seen reference to a a Javascipt <> Java communication package on these forums before which may be what you are looking for.
Some info here:
http://wp.netscape.com/eng/mozilla/3.0/handbook/javascript/packages.htm

Rt.jar in applet tag

Hello,
I'm trying to create an applet that include a few swing classes. From what I have read, the client needs to download the rt.jar file for the applet to access the swing classes. I'm trying to figure out how to include this jar file in the applet tag.
Right now my applet tag looks like: <applet code="JavaPic.class" archive="JavaPic.jar, rt.jar" width="100" height="100"></applet>.
Any help would be greatly appreciated.

Sorry, I think I wasn't very descriptive. The applet is to be used in IE/Netscape. The applet works okay and all the import classes are inserted. If I run the applet in appletviewer, it works fine because the appletviewer has access to the swing class files. IE/Netscape don't have access to those classes so I need to have them download with the applet to provide the browser with the classes.
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Window with applet tag gains focus prior to new window browser window

setup a :
1. sample index.html page:
<HTML>
<HEAD>
<script>
var _load=function(){window.open('test.html');};
window.attachEvent("onload", _load);
</script>
</HEAD>
<BODY>
<applet code=Index name=Index width=1 height=1 align=baseline>
</BODY>
</HTML>
2. and child test.html window of the above (opened during onload event)
<HTML>
<HEAD>
<TITLE>1</TITLE>
<script>
var _load=function(){window.focus();};
window.attachEvent("onload", _load);
</script>
</HEAD>
<BODY>
TEST PAGE
</BODY>
</HTML>
when a test.html page is opened focus is temporarily shifted back to the index.html page and
only later back to the test.html page (window.focus()) call in that page sets the focus, not always
suceeds, a further code is required to do a retry)
when the applet is removed from the index.html page, problem goes away, it is if the applet tag
has priority in terms of window focus
byproduct of this is also annoying flicker, (while the focus is shifted between index.html and test.html page)
this problem is only happening with SUN JVM (and I dont know if its a defect or by design)
SUN JVM tested:
Java(TM) Plug-in: Version 1.4.2_03
Using JRE version 1.4.2_03 Java HotSpot(TM) Client VM
suggestions, workarounds? appreciate in advance

tested following matrix of browser/VM
Platform Result:
MS IE and Microsoft (R) VM for Java, 5.0 Release 5.0.0.3810 (with success, no focus problems)
MS IE and Java(TM) Plug-in: Version 1.4.2_03 (focus problems, in the case of
two applets one coded on the
main page the other on the pop-
up window)
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
Plug-in: Version 1.4.2_03 Using JRE version 1.4.2_03 Java HotSpot(TM) Client VM
(focus problems, in the case of one applet on
the main page or in the case of two applets
one coded on the main page the other on the
pop-up window)
Please see revised test case source code (to support above configurations, as well inclusion of the second
applet to address discrepency in behaviour between Mozilla and IE (with SUN JVM)
<HTML>
<HEAD>
<script>
String.prototype.contains=function(s){return(this.toLowerCase().indexOf(s.toLowerCase())!=-1);};
var u_n=navigator;
var u_agt=u_n.userAgent.toLowerCase();
var u_MSIE=(u_agt.contains("msie"));
var _load=function(){window.open('test.html');};
if (u_MSIE)
window.attachEvent("onload", _load);
else
window.addEventListener("load", _load, false);
</script>
</HEAD>
<BODY>
<applet code=Index name=Index width=1 height=1 align=baseline>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE>1</TITLE>
<script>
String.prototype.contains=function(s){return(this.toLowerCase().indexOf(s.toLowerCase())!=-1);};
var u_n=navigator;
var u_agt=u_n.userAgent.toLowerCase();
var u_MSIE=(u_agt.contains("msie"));
var _load=function(){window.focus();};
if (u_MSIE)
window.attachEvent("onload", _load);
else
window.addEventListener("load", _load, false);
</script>
</HEAD>
<BODY>
TEST PAGE
<applet code=Test name=Test width=1 height=1 align=baseline>
</BODY>
</HTML>
Index.java source code:
public class Index extends Applet {
public synchronized void init() {
public synchronized void start() {
public synchronized void stop(){
public synchronized void destroy(){
Test.java source code:
public class Test extends Applet {
public synchronized void init() {
public synchronized void start() {
public synchronized void stop(){
public synchronized void destroy(){

Get JSP file to run with an applet tag under JDeveloper

I Created an applet and an html file under JDeveloper. with the applet tag in the html file.
when I run the html file the applet runs perfectly.
I Created a jsp file in the same project with the applet and the html file under JDeveloper. I copied and pasted the applet tag from the html file to the jsp file.
When I try to run the jsp file under JDeveloper I get
java.io.FileNotFoundExceptions for all of the jar files in the Applet tag ARCHIVE and for the applet tag CODE
This is the applet tag that I copied and pasted from the html file to the jsp file
BEGIN:
<APPLET CODE="myapplet.Applet1" ARCHIVE="jdev-rt.jar,ojsp.jar,ojsputil.jar,oc4j.jar,servlet.jar,ojc.jar" HEIGHT="200" WIDTH="200" ALIGN="bottom">This browser does not appear to support Applets.</APPLET>
END:
Here three example of the exceptions that I got BEGIN:
1.
java.io.FileNotFoundException: http://139.169.225.224:8988/JspToAppletWS-JspAppletInstantiation-context-root/jdev-rt.jar
2.
java.io.FileNotFoundException: http://139.169.225.224:8988/JspToAppletWS-JspAppletInstantiation-context-root/jdev-rt.jar
3.
java.lang.ClassNotFoundException: myapplet.Applet1
Here three example of the exceptions that I got END:
This is the html file that works BEGIN:
<HTML>
<HEAD>
<TITLE>
Title
</TITLE>
</HEAD>
<BODY>
<H2>
This is sample HTML text.
</H2>
<BR>
<APPLET CODE="myapplet.Applet1" ARCHIVE="jdev-rt.jar,ojsp.jar,ojsputil.jar,oc4j.jar,servlet.jar,ojc.jar" HEIGHT="200" WIDTH="200" ALIGN="bottom">This browser does not appear to support Applets.</APPLET>
</BODY>
</HTML>
This is the html file that works END:
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<%@ page import = "myapplet.Applet1, java.util.Enumeration, java.util.Vector, javax.swing.JFrame, java.lang.*" contentType="text/html;charset=windows-1252"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>
Hello World
</title>
</head>
<body>
<h2>
The current time is:
</h2>
<p>
<%= new java.util.Date() %></p>
<APPLET CODE="myapplet.Applet1" ARCHIVE="jdev-rt.jar,ojsp.jar,ojsputil.jar,oc4j.jar,servlet.jar,ojc.jar" HEIGHT="200" WIDTH="200" ALIGN="bottom">This browser does not appear to support Applets.</APPLET-->
</body>
</html>
This is the JSP file that does not work END:
I would like to know what I need to do so that I can run
the Jsp file under JDeveloper with the applet tag without any exceptions.

Hi,
I meet the same problem and can not get a solution from this forum or other forum in internet, either.
Have you already solved this problem? Can you tell me your solution? thanks in advance.
Regards

Accessing a File within a zip, which was archived using Applet Tag

Hi,
Could Any one please tell me, How to Access a File from within an Applet. The File resides inside a zip which was Archived using <Applet> Tag.
Actually, I want to write an application which runs both online and offline. So I have chosen Applet and All the files Which I need are zipped and is Archived through <Applet ARCHIVE="example.zip">.
Now I want to access those XML files which are inside example.zip from my Applet.
How can I do that?
I think I will get security Exception.
How to get rid of this security Exception.
Kindly Answer soon.......
It's very urgent.
Thanking you,
KumudaRaj

Did you already try signing a jarfile? If no ->>
You can call a class inside a jar-file within the applet.
if this class should be able to acces files the jarfile
first has to be signed. to do this, you must generate a key.
the complete work:
1. write your applet
2. write a html-page with following code:
<APPLET code="guestbook.class" archive="guestbook.jar" width=600 height=400></APPLET>
3. make a zip-file with the guestbook.class, guestbook.form, guestbook$1.class, guestbook$... and rename it to guestbook.jar
4. in the console type:
keytool -genkey -alias YOURNAME
5. sign the key to your jarfile with:
jarsigner guestbook.jar YOURNAME
6. try the applet. a warning should appear which you have to answer
with YES then it should work
my trouble is that i cant acces files anyway because right now i don�t
alreadv have the clue to get the right (absolute?) path for the file. means i get an ioexception because the applet cant find the file :-((
does anyone know how to solve this problem then? my code is:
FileReader Stream = new FileReader("/members/Ui97u8g4f6b89mj90kh5gbr4ecf6KXC4/guestbook.txt");
...

Signed applet working in Netscape 6 but not in IE 5.5

I have an applet that reads a file from a server and tries to write it to a client machine. To this i self signed the jar file containing the applet using the keytool and jarsigner. So now I had a self signed applet. I tried to run this in IE. It gave the same error message that i used to get when I tried to run it the applet as unsigned. What am I missing here? Is self signing not enough to run the applet in IE? The same applet works in Netscape 6 and successfully downloads the file to the local machine. Please help me. I have added the certificate to the IE security panel as trusted.

Netscape 6 has Java VM 1.3. if you use MSIE, you should try JavaPlugin.
If interested in an appli that helps in signing process, you may download XLRSecTool for
free at:
. Windows:
http://www.xlreader.com/download/stl10ea/InstData/Windows/NoVM/istl10ea.exe
. Unix and Linux:
http://www.xlreader.com/download/stl10ea/InstData/Unix/Others/istl10ea.bin
. Other Java-enabled OS
http://www.xlreader.com/download/stl10ea/InstData/Java/install.zip
Requires Java VM 1.3.1
Screenshot:
http://www.xlreader.com/images/sshot_s673x548.gif
-- Robert
=====
[email protected]
XL-Reader Project - Secured online documentation solutions
www.xlreader.com
=====

APPLET tag issue

Hello
When practicing coding applets I am getting the following error message:
Your browser is completely ignoring the <APPLET> tag.
Do I need to change a setting in IE?
Thanks
Steve

Hello
When practicing coding applets I am getting the
following error message:
Your browser is completely ignoring the <APPLET>
tag.
Do I need to change a setting in IE?
Thanks
SteveHello
Any further suggestions on this please.
I also have a query concerning Appletviewer. When I try to see my applet through DOS using aooletviewer (as opposed to looking at the HTML page - which doesn't show the applet anyway - maybe this is related to the post I have sent above), it doesn't work. It's as if DOS thinks the appletviwer is not in the c/java/bin directory (but it is).
Any advice, please.
Steve

Applet tag

Hi guys i'm having a bit of a problem with an applet.
I have an applet i am trying to run which imports one of my own classes from a different package. When i run this applet i get a NoClassDefFoundError on this imported class. I dont understand what the problem is, the classpath should be fine, i have had no problem using this class before and although i'm not to familiar with html i don't think i need to mention my imported class in the tag since the std java classes import ok.
just wondered if anyone could shed some light on the matter.
I would rather not use a jar file.
cheers
steve

My applet tag looks like:
<APPLET CODE="MyClass.class" WIDTH=300 HEIGHT=300>
<\APPLET>
now the problem i have is that appletviewer, or any of my browsers, cannot find a class 'utilities.MyUtil.class' that i have in a different path, which 'MyClass.class' needs, resulting in a NoClassDefFoundError.
after looking at an applet tutorial i thought that this maybe impossible without a jar file because of the security restrictions of applets.
i would be deeply indebted to you if you tell me this is not the case!

applet tag vs Object tag

As per W3Schools HTML applet tag is not supported in HTML5. Need to use <Object> tag instead of <applet> tag.
For more details follow this link: http://www.w3schools.com/tags/tag_applet.asp
http://dev.w3.org/html5/spec/obsolete.html#the-applet-element
Point 11.2 Non-conforming features
So, I go ahead and the change the code as below depicted.
Below code that is working with <APPLET> tag:
+<Applet+
style    = "position:absolute;border:0px;left:184;top:95;height:180;width:364;"
code     = "jtreeviewapplet.JTreeViewAppletMain.class"
name     = "TreeView"
id       = "TreeView"
hspace   = "0"
vspace   = "0"
align    = "top"
archive = "/Project/HTML/ABC/XYZ.jar,/Project/HTML/ABC/ABC.jar"
MAYSCRIPT>
+<PARAM NAME="onSelected" VALUE="onSelect_Handler">+
+<PARAM NAME="onFinishNormalize" VALUE="onFinishNormalize_Handler">+
+</Applet>+
Here is the snippet, whcih have been changed to <OBJECT> tag so as to support HTML5 in future:
+<OBJECT type=" application/x-java-applet"+
style    = "position:absolute;border:0px;left:184;top:95;height:180;width:364;"
name     = "TreeView"
id       = "TreeView"
hspace   = "0"
vspace   = "0"
align    = "top"
+>+
+<PARAM name="code" value=”jtreeviewapplet.JTreeViewAppletMain.class”>+
+<PARAM name="codebase" value="/Project/HTML/ABC/">+
+<PARAM name="archive" value=" XYZ.jar">+
+<PARAM name="archive" value=" ABC.jar">+
+<PARAM name="scriptable" value="true">+
+<PARAM NAME="onSelected" VALUE="onSelect_Handler">+
+<PARAM NAME="onFinishNormalize" VALUE="onFinishNormalize_Handler">+
+</OBJECT>+
After changing the *<applet>* tag to *<object>* tag , my applet itself is not loading and it gives class not found exception for jtreeviewapplet.JTreeViewAppletMain.class.
(Note: For both working and not working condition, I am using latest JDK 1.7 update 9 for compiling the code and in my system I am having latest JRE1.7 update 9 to run the applet code. I am using InternetExplorer 8 and InternetExplorer 9 browser)
Can anybody help me to find out where I am going wrong?
Edited by: 975931 on Dec 12, 2012 1:24 AM

You might want to stick to the documentation:
http://docs.oracle.com/javase/tutorial/deployment/index.html
and use the deployment toolkit.
PS: use \ tags when posting anything code related. That makes it readable and it keeps the forum from trying to interpret it.

Applet tag question

I am working with applets and have been getting the classdefnotfounderror exception and a wrong name error.
After pouring over the archives and messing around, I have found a
solution to my problem, but I don't know why it works. I think it has to do with packages, but I'm not sure.
I have two versions of Asteroids, one which has "package Asteroids" at the top
of each file, and one that has no package.
First with the version that is in a package: If I have the html file in the
same directory as the class files, I cannot get the applet tag to work
properly. If I back it up a directory (just outside the Asteroids directory), this works:
<applet
codebase = "."
code     = "Asteroids/Asteroids.class"
width    = "640"
height   = "480"
</applet>
{code}
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For the version that is not in a package, the opposite seems to work.
{code:java}
<applet
codebase = "Asteroids/"
code     = "Asteroids.class"
width    = "640"
height   = "480"
</applet>
{code}
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Thanks,
Matt

I don't know what your understanding of packages and applet codebase is. These 2 tutorial sections should clarify your understanding, though.
http://java.sun.com/docs/books/tutorial/java/package/index.html
http://java.sun.com/docs/books/tutorial/deployment/applet/html.html

How to make pack200 work with applet tag ?

Hello All,
Sorry for the cross-post.
I tired getting the advise on java.net forum but with no success. Can someone here please help with this or direct me to right direction.
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I have followed the instructions for jarsigned pack200 jars.
http://java.sun.com/j2se/1.5.0/docs/guide/deployme.../deployment-guide/pack200.html
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java.util.zip.ZipException: ZIP file must have at least one entry
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at java.util.zip.DeflaterOutputStream.close(Unknown Source)
at java.util.zip.ZipOutputStream.close(Unknown Source)
at com.sun.deploy.net.HttpDownloadHelper.download(Unknown Source)
at com.sun.deploy.cache.Cache$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.cache.Cache.downloadResourceToCache(Unknown Source)
at com.sun.deploy.cache.DeployFileOutputStream.close(Unknown Source)
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at java.io.BufferedInputStream.close(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.downloadJAR(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack.access$000(Unknown Source)
at sun.plugin.PluginURLJarFileCallBack$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
Do i need to add something more .
I am only allowed to use the below:as its the corporate policy for now.
Java Plug-in 1.6.0_05
Using JRE version 1.6.0_05 Java HotSpot(TM) Client VM
Can someone please help me how to get the pack200 work in the Object tag ?
Please advise.
Thanks,

InputStream in = sc.getResourceAsStream("application.jar.pack.gz");
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private void sendOut(InputStream in, OutputStream ostream)
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u should conifgure the servlet in the web.xml for urlmapping *.jar
<servlet-mapping>
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Edited by: kartheepanmirra on Jun 17, 2009 12:17 AM
Edited by: kartheepanmirra on Jun 17, 2009 3:06 AM

JSP applet tag X Html applet tag (what is the difference?)

what is the advantage in using the JSP applet tag instead of a simple Html applet tag ?
second question:
I have an applet in a Html frame, and a menu on the left side.... When the user select the applet option at first time, everything runs ok.. after the user select another option and then select the applet again, it fails in some features .. Why ?

well, if by "the JSP applet tag", you mean the jsp:plugin tag.. that will just generate the same HTML tag you would write. The only advantage would be it should be less typing to use the taglib.
second answer:
without seeing any code, it'd be hard to figure out the problem. The obvious thing is you are setting some state of something that is preventing further action.

Applet tag accessing JAR file

hi,
I hope this is not a multi-post, I've searched high and low and I could not find an exact solution to my question...
How can I load an applet in a browser using an applet tag? My main class is com.my.applet.MainClass.class and the its in a JAR. The jar is in ProjectName/WebContent/WEB-INF/lib/MyJar.jar (a Dynamic Web Project).
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i guess there is no solution for this one... i placed it in a resource folder instead... thx everyone...

Buggy handling of APPLET tags in Netscape 6.1 ?

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