Java Applet Files in RH8 Output

Hello to everyone!
My name is Livia, I am from Romania, and I work as a Technical Writer for a company that makes billing software for telecommunications providers. One of my tasks consists in creating WebHelp files for our web-based applications, and I have recently encountered a problem for which I need some expert advice.
While investigating a recent bug (the help isn't working properly on the web application it's for), I have discovered that there are some Java-related files missing from my help output: webhelp.cab, webhelp.jar and whskin_papplet.htm. These files exist in older projects created with RH5. I now use RH8. The Adobe help page for RH 8 (At http://help.adobe.com/en_US/RoboHelp/8.0/RoboHTML/WS5b3ccc516d4fbf351e63e3d11aff59c2a0-7fb 6.html) lists these files as normally present in the output, and yet, in one of the discussion threads on this forum (http://forums.adobe.com/thread/24865), someone says "webhelp.jar is not being used in the output so you can safely remove it if required. It has been fixed in RH8 and doesn't come in the output."
What is the correct version? Should these files appear in the help output or not?
Thank you,
Livia Miron

Welcome to our community
The files should not be present. They are not needed. They are (or were) related to the way the navigation pane works.
In RoboHelp 7 and earlier, there was the following option in the WebHelp generation dialogs:
As you can see, RoboHelp 8 does not offer this option:
Hope this helps... Rick
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Similar Messages

JRE 1.7 / Java Plug-in - Long delay in retrieving the applet File(JAR) due to a request to the Domain Controller(on port 53)

Description:
A specific group of users/customers (using Windows7 OS with IE and FireFox web browsers) are facing problems with retrieving the applet File, after they upgraded the JRE on the system(PC) to JRE 1.7.0_25-b17 from JRE version 1.6.0_29-b11.
With JRE 1.7.0_25-b17 it is noticed that when the Java plugin requests for the applet File; it sends a request to the Domain Controller of the user, which causes a delay of 2 to 5 minutes and sometimes hangs. The problem occurs consistently.
The current temporary workaround for this group of users is to use JRE version 1.6.0_29-b11.
Problem analysis:
To investigate the problem the below steps were executed:
1) Collected the Java console outputbelow details from the user's system. (The complete output is not posted due to lengthy content, though can be added further to this post if required.)
(a) Works fine with JRE version 1.6.0_29-b11. Kindly refer to Java console output in the code ‘section A’ towards the end of this post.
(b) The problem occurs with problem with JRE version 1.7.0_25-b17. Kindly refer to Java console output in the code ‘section B’ towards the end of this post. The step where the problem is observed, is indicated as(##<comment>##).
2) The network settings in the user's browser was checked. Internet Options > Connections > LAN setting
The configured option is 'Use automatic configuration script' and the value is http://www.userAppX.com/proxy.pac
This configuration remains the same irrespective of the JRE version in use.
3) The network settings in the Java Control Panel was checked.
The used/selected option is "Use browser settings", although values for 'Use proxy server' and 'use automatic proxy configuration script' are filled-in as 'user-proxy.com' and 'http://www.userAppX.com/proxy.pac' respectively.
This configuration remains the same irrespective of the JRE version in use.
4) The proxy PAC file was checked and debugging was done for the request 'https://myAppletHost.com/download/...'. The FindProxyForUrl function (including the conditions defined in it, for the hostname and domain checks) returns PROXY user-proxy.com:80
5) The user also tried the below
a. Changed the option in the network settings in the browser to 'Proxy server' with Address 'user-proxy.com' and Port '80'
b. Restarted the browser.
c. Tried with Java Plug-in 1.6.0_29, JRE version 1.6.0_29-b11. There was no problem and no request to the Domain Controller of the user.
d. Tried with Java Plug-in 10.40.2.43, JRE version 1.7.0_40-b43. The problem occurs with the delay and a request to the Domain Controller of the user is observed.
Kindly refer to Java console output in the code ‘section C’ towards the end of this post.
6) The user also tried setting the below property in the Java Control panel; restarted the browser, and try with JRE 1.7.0_40-b43. The problem stil persists.
-Djava.net.preferIPv4Stack=true
7) The Global Policy Management of the Domain Controller was verified by the user. It has GPO for proxy setting but nothing related to Java security.
Questions:
The problem seems be specific to a particular (user) environment setup, and the user faces the problem when using JRE 1.7.
We would like to know if the issue is in the (user) environment setup or in JRE 1.7.
Could you please help with information/ideas/suggestions to identify the root cause and solution for this problem?
Section A:
Java Plug-in 1.6.0_29
Using JRE version 1.6.0_29-b11 Java HotSpot(TM) Client VM
User home directory = C:\Users\userA
basic: Plugin2ClassLoader.addURL parent called for https://myAppletHost.com/download/myApplet.jar
network: Connecting https://myAppletHost.com/download/myApplet.jar with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-b1bb5056c5b0e83f=2; Path=/"
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-b1bb5056c5b0e83f=2; Path=/"
security: Loading Root CA certificates from C:\Program Files (x86)\Java\jre6\lib\security\cacerts
security: Loaded Root CA certificates from C:\Program Files (x86)\Java\jre6\lib\security\cacerts
security: Loading SSL Root CA certificates from C:\Program Files (x86)\Java\jre6\lib\security\cacerts
security: Loaded SSL Root CA certificates from C:\Program Files (x86)\Java\jre6\lib\security\cacerts
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Internet Explorer ROOT certificate store
security: Loaded certificates from Internet Explorer ROOT certificate store
security: Checking if certificate is in Deployment denied certificate store
network: Connecting https://myAppletHost.com/download/myApplet.jar with cookie "JSESSIONID=0000IK4bEMoqXH10zsl88rwvoRI:175oe9tjd; BCSI-CS-b1bb5056c5b0e83f=2"
network: Downloading resource: https://myAppletHost.com/download/myApplet.jar
 Content-Length: 403.293
 Content-Encoding: null
Dump system properties ...
https.protocols = TLSv1,SSLv3
java.vm.info = mixed mode, sharing
java.vm.name = Java HotSpot(TM) Client VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Sun Microsystems Inc.
java.vm.specification.version = 1.0
java.vm.vendor = Sun Microsystems Inc.
java.vm.version = 20.4-b02
javaplugin.nodotversion = 160_29
javaplugin.version = 1.6.0_29
javaplugin.vm.options =
os.arch = x86
os.name = Windows 7
os.version = 6.1
trustProxy = true
deployment.proxy.auto.config.url = http://www.userAppX.com/proxy.pac
deployment.proxy.bypass.local = false
deployment.proxy.http.host = user-proxy.com
deployment.proxy.http.port = 80
deployment.proxy.override.hosts =
deployment.proxy.same = false
deployment.proxy.type = 3
deployment.security.SSLv2Hello = false
deployment.security.SSLv3 = true
deployment.security.TLSv1 = true
deployment.security.mixcode = ENABLE
Section B:
Java Plug-in 10.25.2.17
Using JRE version 1.7.0_25-b17 Java HotSpot(TM) Client VM
User home directory = C:\Users\userA
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@12adac5
basic: Plugin2ClassLoader.addURL parent called for https://myAppletHost.com/download/myApplet.jar
network: Connecting https://myAppletHost.com/download/myApplet.jar with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-2d4ce94a2ae7b460=2; Path=/"
network: Connecting http://10.x.x.xx:53/ with proxy=DIRECT
 (##THE ABOVE REQUEST CAUSES THE DELAY OR HANGS##)
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-2d4ce94a2ae7b460=2; Path=/"
security: Loading Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loaded Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loading SSL Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loaded SSL Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Internet Explorer ROOT certificate store
security: Loaded certificates from Internet Explorer ROOT certificate store
network: Connecting https://myAppletHost.com/download/myApplet.jar with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-2d4ce94a2ae7b460=2; Path=/"
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-2d4ce94a2ae7b460=2; Path=/"
network: Connecting https://myAppletHost.com/download/myApplet.jar with cookie "JSESSIONID=0000UQuXWY5tjxjpwcKHlfJKe_8:175oe9j45; BCSI-CS-2d4ce94a2ae7b460=2"
network: ResponseCode for https://myAppletHost.com/download/myApplet.jar : 200
network: Encoding for https://myAppletHost.com/download/myApplet.jar : null
network: Server response: (length: -1, lastModified: Thu Feb xx yy:yy:yy CET 2013, downloadVersion: null, mimeType: text/plain)
network: Downloading resource: https://myAppletHost.com/download/myApplet.jar
 Content-Length: -1
 Content-Encoding: null
Section C:
Java Plug-in 10.40.2.43
Using JRE version 1.7.0_40-b43 Java HotSpot(TM) Client VM
User home directory = C:\Users\userA
basic: Plugin2ClassLoader.addURL parent called for https://myAppletHost.com/download/myApplet.jar
network: Connecting https://myAppletHost.com/download/myApplet.jar with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-1d67c8b6508ca09c=2; Path=/"
network: Connecting http://10.x.x.xx:53/ with proxy=DIRECT
 (##THE ABOVE REQUEST CAUSES THE DELAY OR HANGS##)
network: Checking for update at: https://javadl-esd-secure.oracle.com/update/blacklist
network: Checking for update at: https://javadl-esd-secure.oracle.com/update/blacklisted.certs
network: Checking for update at: https://javadl-esd-secure.oracle.com/update/baseline.version
network: Connecting https://javadl-esd-secure.oracle.com/update/blacklist with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Connecting https://javadl-esd-secure.oracle.com/update/baseline.version with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Connecting https://javadl-esd-secure.oracle.com/update/blacklisted.certs with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
security: Loading Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loaded Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loading SSL Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
security: Loaded SSL Root CA certificates from C:\Program Files (x86)\Java\jre7\lib\security\cacerts
Dump system properties ...
https.protocols = TLSv1,SSLv3
java.vm.info = mixed mode, sharing
java.vm.name = Java HotSpot(TM) Client VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Oracle Corporation
java.vm.specification.version = 1.7
java.vm.vendor = Oracle Corporation
java.vm.version = 24.0-b56
javaplugin.nodotversion = 10402
javaplugin.version = 10.40.2.43
os.arch = x86
os.name = Windows 7
os.version = 6.1
trustProxy = true
active.deployment.proxy.auto.config.url = http://www.userAppX.com/proxy.pac
active.deployment.proxy.bypass.local = false
active.deployment.proxy.http.host = user-proxy.com
active.deployment.proxy.http.port = 80
active.deployment.proxy.same = false
active.deployment.proxy.type = 3
deployment.browser.path = C:\Program Files (x86)\Internet Explorer\iexplore.exe
deployment.proxy.auto.config.url = http://www.userAppX.com/proxy.pac
deployment.proxy.bypass.local = false
deployment.proxy.http.host = user-proxy.com
deployment.proxy.http.port = 80
deployment.proxy.override.hosts =
deployment.proxy.same = false
deployment.proxy.type = 3
deployment.security.SSLv2Hello = false
deployment.security.SSLv3 = true
deployment.security.TLSv1 = true
deployment.security.TLSv1.1 = false
deployment.security.TLSv1.2 = false
deployment.security.authenticator = true
deployment.security.disable = false
deployment.security.level = HIGH
deployment.security.mixcode = ENABLE
PS:
Since the JRE 1.7.0_25-b17 update, it is noticed that when the Java plugin requests for the applet File; it sends a request to the Domain Controller of the user, which causes a delay of 2 to 5 minutes and sometimes hangs.
The problem occurs consistently, and also with JRE 1.7.0_45-b18.
Java Plug-in 10.45.2.18
Using JRE version 1.7.0_45-b18 Java HotSpot(TM) Client VM
User home directory = C:\Users\userA
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
cache: Initialize resource manager: com.sun.deploy.cache.ResourceProviderImpl@134a33d
basic: Added progress listener: sun.plugin.util.ProgressMonitorAdapter@1971f66
basic: Plugin2ClassLoader.addURL parent called for https://myAppletHost.com/download/myApplet.jar
network: Connecting https://myAppletHost.com/download/myApplet.jar with proxy=HTTP @ user-proxy.com/194.xxx.xx.xx:80
network: Server https://myAppletHost.com/download/myApplet.jar requesting to set-cookie with "BCSI-CS-f797d4d262467220=2; Path=/"
network: Connecting http://10.x.x.xx:53/ with proxy=DIRECT
network: Connecting http://10.x.x.xx:53/ with proxy=DIRECT
 (##THE ABOVE REQUEST CAUSES THE DELAY AND SOMETIMES HANGS##)

My organization is experiencing very similar problems. We have resolved it through several steps.
We upgraded the client to Java 8 and we saw in the console that the hanging connection with the Domain Controller no longer occurs. This may be all that is necessary for your environment as well.

How to update content of a file on server using a Java Applet?

Hi,
I'm new to Java, and I have a task now to overwrite a text file on a server using an applet. I have written a piece of code which compiles but doesn't work. Can you please take a look at the code or give me another way to do it?
Thanks.
Code:
import java.applet.Applet;
import java.io.*;
import java.net.*;
public class test2 extends Applet{
public void init() {
StringBuffer buf = new StringBuffer();
try {
     String output = "this is some string";
     URL aUrl = new URL (getCodeBase().toString() + "test.txt");
     System.out.println(aUrl);
     URLConnection con = aUrl.openConnection();
     con.setDoOutput(true);
     PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(con.getOutputStream())));
     out.println(output);
     out.close();
catch (MalformedURLException mue) {
     System.out.println("improper url");
     mue.printStackTrace();
catch (IOException e) {
     System.out.println("io exception");
     e.printStackTrace();
}

Ram.ViSolve wrote:
869975 wrote:
Thanks. I knew there would be a security issue, but I do not have sufficient knowledge to get around it. If you have a reference how to configure a server please post it here.You need to create Signed Applet. Because normally applets have some restriction to access the files in the client machine. Signed applets overrides the restriction.
To know more, Read [url http://192.9.162.55/developer/onlineTraining/Programming/JDCBook/signed.html]Signed Applet
No. Our OP wants to write to the server, not to the client! And to achieve this from an applet, you don't need it signed, iff the server is the machine from where the applet was downloaded in the first place. You only need to use a mechanism that allows you to write to servers, which HTTP is not. FTP, on the other hand, if setup properly can do it. So instead of trying to write using an HttpURLConnection (OP's attempt), you would use an FTP client library. FTP here is just an example and probably not the best way. Another option is to use some servlet or PHP or ASP on the server side and the applet will sumbmit the changes to that code on the server, which in turn will write to the file. The idea is that you need some 'partner code' on the server, be it the FTP server or the servlet/PHP/ASP code. None of this requires the applet to be signed.

A helloworld java applet that will work on an html file

I have spent a lot of time trying to get a java applet to work on a web page. Of course, I can download zip packages and they will work. But I can?t seem to find a formula for creating something simple that will work.
All the examples that I have found will either work on Windows when running it on the command line, or work in Netbeans, but none of them will work when I put time into an html file on a linux web server.
Can someone post, maybe the simplest code that will output ?Hello world? on a Linux Apache Web server.
I have the gist for creating and programming java? as least a basic start. But I?m anxious to see an example that I can compile that will actually display on an html file and not just my Windows programming environment.
Thanks in advance for any feedback on this.
-- L. James
L. D. James
[email protected]
www.apollo3.com/~ljames

AndrewThompson64 wrote:
apollothethird wrote:
I have spent a lot of time trying to get a java applet to work on a web page. Of course, I can download zip packages and they will work.Does that somehow relate to this problem? What exactly does a Zip 'package' do when it 'works'?It displays the text on the web page.
>
.. But I cant seem to find a formula for creating something simple that will work.
All the examples that I have found will either work on Windows when running it on the command line, or work in Netbeans, but none of them will work when I put time into an html file on a linux web server.
Can someone post, maybe the simplest code that will output Hello world on a Linux Apache Web server.
Is that a question? Please make sure to add a question mark.
// <applet code='HelloWorldApplet' width='400' height='300'></applet>
import javax.swing.*;
public class HelloWorldApplet extends JApplet {
public void init() {
add(new JLabel("Hello World!"));
validate();
I have the gist for creating and programming java as least a basic start. ... Applets are not for newbies. Leave them alone for at least another 6 months.Thanks, Andrew. The lines of text you provided were very enlightening. I was able to do a lot of dissecting and experimenting and have the full gist of my question answered. I don?t have any problems outputting either text on the console or text on browsers.
-- L. James
L. D. James

Applet writing on a output file

I am new to JAVA and I've got jdk 1.4.1 downloaded.
I am thinking it is possible to have a JAVA applet
which writes on a output file.
In order to do that, I tried to use the code below, where the Applet "write.class" should display a string on a painted area and write to file "myfile.txt".
Now compilation is OK (no error or warning messages), and I tried to incorporate this Applet into a HTML code (by using the sintax <applet code="write.class" width=200 height=50> </applet>).
When I open the HTML document using Internet Explorer the Applet is run, but the file "myfile.txt" is not created.
Can somebody explain me what is going wrong?
Any suggestion or comment is welcome and appreciated.
import java.applet.Applet;
import java.awt.*;
import java.io.*;
public class write extends Applet {
public void paint(Graphics g) {
g.drawString("The Java Applet is Writing!",20,30);
 main();
public static void main(){
FileOutputStream out;
PrintStream p;
 try
 out = new FileOutputStream("myfile.txt");
p = new PrintStream( out );
 p.println ("This is to be written to a file");
p.close();
 catch (Exception e)
 System.err.println ("Error writing to file");

applets are not allowed to write to the local file system.
you wouldn't like something that came with a web site without your confirmation fill up your hard drive, would you?

URGETN HELP NEEDED! JAVA APPLET READING FILE

Hi everyone
I need to hand in this assignment today
Im trying to read from a file and read it onto the screen, my code keeps showing up an error
'missing method body, or declare abstract'
This is coming up for the
public statuc void main(String[] args);
and the
public void init();
Here is my code:
import java.io.*;
import java.awt.*;
import java.applet.*;
public class Empty_3 extends Applet {
TextArea ta = new TextArea();
public static void main(String[] args);
public void init();
setLayout(new BorderLayout());
add(ta, BorderLayout.CENTER);
try {
InputStream in =
getClass().getResourceAsStream("test1.txt");
InputStreamReader isr =
new InputStreamReader(in);
BufferedReader br =
new BufferedReader(isr);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
String line;
while ((line = br.readLine()) != null) {
pw.println(line);
ta.setText(sw.toString());
} catch (IOException io) {
ta.setText("Ooops");
Can anyone help me please?
Is this the best way of doing this? Once i read the file i want to perform a frequency analysis on the words so if there is a better method for this then please let me know!
Thankyou
Matt

Whether it is urgent or not, does not interest us. It might be urgent for you but for nobody else.
Writing all-capitals is considered shouting and rude.
// Use code tags for source.

Add Files java applet does not trust our certificate

We have installed Novell Filr and it is working great except for one issue. The java applet that runs when the Add Files button is clicked does not trust our certificate authority. We purchased and installed a SSL certificate, and both IE and Firefox accept it (before installing, we got a certificate warning every time we went to Filr).
The certificate authority is Starfield Secure Certificate Authority, and we use certificates from them for our websites and mail servers, so I do not understand why this applet and/or Java do not.
Is there any way to stop the scary warning message our users get. FYI - this happens the first time the Add Files button is clicked in each session.
Paul Rebmann

Originally Posted by jmarton
na paul wrote:
>
> We have installed Novell Filr and it is working great except for one
> issue. The java applet that runs when the Add Files button is clicked
> does not trust our certificate authority. We purchased and installed
> a SSL certificate, and both IE and Firefox accept it (before
> installing, we got a certificate warning every time we went to Filr).
>
> The certificate authority is Starfield Secure Certificate Authority,
> and we use certificates from them for our websites and mail servers,
> so I do not understand why this applet and/or Java do not.
>
> Is there any way to stop the scary warning message our users get.
> FYI - this happens the first time the Add Files button is clicked in
> each session.
That sounds a little different than what this was designed to fix, but
by any chance have you installed the updated Java applets on the Filr
appliance?
http://download.novell.com/Download?...d=zRrgEN6Kvxo~
Your world is on the move. http://www.novell.com/mobility/
BrainShare 2014 is coming. http://www.novell.com/brainshare/
Hi Paul
Whatever you do it will not work properly especially when some of the users try to use "edit in place". Save yourself the headache and install trusted certificate (primary and intermediate) then even Java will work ok.

In a java applet , how to call other jar file?

i have i programm, this programm is a java application,
also, i already put these program into jar file, and then if i double this jar file , its work!
but , now i need to run this program in web browser,
i thing that i will write a simple applet with a button
after i click this jButton, how the java applet call and run the java file?
please help me.. it is because this is my project! thx..........
[email protected]

I have a solution write one batch file in that you specify class path and java home.
then give
java -jar Test.jar
then call this batch file from program using Java runtime
Runtime.exec method...
Hope will this work

How to display a .exe file in java applets by avoiding the file downloadbox

Hi sir,
I know that in order to display a any file(or)program in java applets you need to use showDocument().Where you cannot use exec() in java applets.
My problem is that when i use showDocument() to display .exe file.It is showing a file download dialog box.If we click & open only it is opening that .exe file.Here i want to open the .exe file without showing that file download dialog box in java applets.
Since,i am undergoing a project which involves it,it is quite urgent.pls.do provide the exact code in java applet without showing that file download dialog box.If it can't be done pls. do provide any other possibilities in order to be displayed on the browser.Thank U.
Regards,
m.ananthu

Hi!
I think you it's better to write a server socket program
in server and open a socket connection to server socket then
send exe file content via connection.
(I guess you know applets only have permission to open socket connection to their code base)
Bye!

File Access with unsigned Applet through editing the java.policy file

I'am starting to lose my hair on this...
I am trying to get an applet to run so that it can access the file system to move files on my local maschin. Because this applet is only running on my VM i can change the java.policy to avoid the signing of the applet.
first of all, if i wrote in the java.policy file
grant {
permission java.security.AllPermission;
};everything is working perfekt.
But I have not the intention to open the gates for any applet out there, so i want to limit the access to my applet. With every of the following versions I get at best an
java.security.AccessControlException: access denied (java.io.FilePermission...
My Setup
My Java Version: jre1.6.0_02
My applet is located unter the url
http://admin.mydomain.com/applet.jar
In Html i tryed the following different versions of loading the applet - none worked
<applet codebase="http://admin.mydomain.com/" name="shortcut" code="start.class" archive="applet.jar" width="0" height="0"></applet>
<applet codebase="http://admin.mydomain.com" name="shortcut" code="start.class" archive="applet.jar" width="0" height="0"></applet>
<applet name="shortcut" code="start.class" archive="http://admin.mydomain.com/applet.jar" width="0" height="0"></applet>in java.policy i tryed following versions with every html applet load version
grant codeBase "http://admin.x-press.de/-" {
permission java.security.AllPermission;
grant codeBase "http://admin.x-press.de/+" {
permission java.security.AllPermission;
grant codeBase "http://admin.x-press.de/applet.jar" {
permission java.security.AllPermission;
};why is it with
grant {
permission java.security.AllPermission;
};working, and not with the other versions?
i am almost bold now, please try to save my last hair from falling down.
any suggestion would be nice
thanks, feyyaz
Message was edited by:
feyyazdogu

I read the mentioned documentation and your right, some of my versions were wrong, but after reading the doumentation again i came to following result which should had worked but didn't.
java.policy
grant codeBase "http://admin.mydomain.com/*" {
permission java.security.AllPermission;
HTML File
<applet codebase="http://admin.mydomain.com/" name="shortcut" code="start.class" archive="applet.jar" height="0" width="0"></applet>if I am entering http://admin.mydomain.com/applet.jar i can download the jar, so the archive lays in the correct directory.
what i am doing wrong? do i have to change an additional file somewhere else?

Java.io.File causes "access denied" exception in a signed applet

Hi,
New to these forums and not entirely where it's appropriate to post this issue, so I'll stick it here for now until told otherwise.
The problem:
My applet throws the following exception.
INFO: Exception Message: access denied (java.io.FilePermission C:\Some Dir With Spaces\AnotherDir\FinalDir read)
The psuedo-code:
java.io.File RootPath = new java.io.File( "C:\" );
private boolean doesSubdirectoryExist(String directory) {
        boolean mResult = false;
        try
            java.io.File tmpPath = new java.io.File( RootPath.toString() + java.io.File.separatorChar + directory );
            mResult = tmpPath.isDirectory();
            tmpPath = null;
        catch (Exception e)
            ... error handling code
        return mResult;
private void btnCheckPathActionPerformed(java.awt.event.ActionEvent evt) {
        ....some other stuff....
        doesSubdirectoryExist(.. a text field value from the GUI form..);
        ....some other stuff....
}                                       The conditions:
1) The applet is signed.
2) The applet runs fine in the AppletViewer.
3) I am using JDK1.5.0_09.
4) When I click the button the event handler is tied to, it works correctly the first time.
5) If I click a second time, with the same value in the text field (i.e. testing for the same subdirectory again) I get the exception error.
I'm pulling my hair out trying to figure this one out. If it were a security issue with the applet running from a browser, why does it work the first time?
Am I failing to release some lock that creating a java.io.File instance creates?
I would appreciate any help.

I've identified the issue. I was attempting to access the filesystem from two different thread and/or contexts.
It seems that if I use the SwingWorker class from https://swingworker.dev.java.net/ to perform background tasks in the Worker thread, I don't get the security privileges required to modify the filesystem. Even though I have signed the jar correctly.
However I can access the filesystem quite happily from the Event Dispatcher thread. If my jar is signed correctly.
So, I have the following questions:
1. Why doesn't SwingWorker worker threads get the same security context as the event dispatcher thread?
2. Is there anyway I can give the worker thread the necessary security privileges?
3. Is there anyway to do this without having to write my own thread handling code and creating my own thread pools?
Message was edited by:
Fidotas
Message was edited by:
Fidotas

Java.io.File and output.write to newly created file

I'm using output.write(""); in conjunction with java.io.File to create a file with field data from a form submit. The file gets created and includes anything I add between the quotes rather then searching for it's value. My question is what is the syntax for putting <%= request.getParameters("") %> in the output.write brackets. I've been unsuccessful thus far so it must be my syntax.
This works:
try {
File outputFile = new File("/tmp/filename");
outputFile.createNewFile();
FileWriter output = new FileWriter(outputFile);
output.write("text in the file");
output.close();
} catch (IOException e) {
System.out.println("Caught IOException: " + e.getMessage());
// or.....
System.err.println("Caught IOException: " + e.getMessage());
%>
I need to include the below and have the file represent <HTML> for redisplay.
<html>
<title><%= request.getParameter("car") %>, <%= request.getParameter("color") %></title>
Car Model: <%= request.getParameter("carMod") %> 
Car Color: <%= request.getParameter("carColor") %> 
Can I wrap this somehow or do I need to define the field data another way?
tks

1)Do you want "<%= request.getParameter("car") %>" written exactly as that to the file, or 2)do you want to get the value of request.getParameter("car") and write it to the output?
If 1):
output.write("<title><%= request.getParameter(\"car\") %>,"+
" <%= request.getParameter(\"color\") %></title>");else if 2):
output.write("<title>"+ request.getParameter("car") +", "+
request.getParameter("color")+"</title>");

Question about Java Applet Jar file signing.

These questions pertain to Java 6 Standard Edition 1.6.0_22-b04 and later.
I have gone through the Oracle Java Tutorial for generate public and private key information
to sign a jar file, and how to sign the jar itself, all at
[http://java.sun.com/developer/onlineTraining/Programming/JDCBook/signed.html|http://java.sun.com/developer/onlineTraining/Programming/JDCBook/signed.html]
, and seek some clarification on the following related questions:
-In order to "escape" the java applet sandbox that exists around the client's
copy of the applet running in their web browser, ie.
(something forbidden by default), is verification of the signed applet enough, or is a policy file required
to stipulate these details?
-using the policytool policy file generator, what do I need to add under "Principals"
(if anything) when dealing with a Java applet? Are Codebase and SignedBy simply author information?
-If I choose to use a java.security.Permission subclass object set up in equivalent fashion within the Applet,
which class within the Applet jar do I instantiate that object in? Does it need to be mentioned
in the applet's jar Manifest.MF file?
-Is the "keystore database" a java language service/process which runs in
the Server's memory and is simply accessed and started by default
by the client verifier program (appletview/web browser)?
-The public key certificate file (*.cer) is put in the webserver directory holding
the Applet jar file (ie. Apache Tomcat, for example).
-Presumably, the web browser detects the signed jar
and certificate file, and provides the browser pop up menu asking the user
about a new, non recognised certificate (initially).
Is this so?
-With this being the case, can the applet now escape
the sandbox, be it with or without the stipulated
policy permissions?

848439 wrote:
-In order to "escape" the java applet sandbox that exists around the client's
copy of the applet running in their web browser, ie.
(something forbidden by default), is verification of the signed applet enough, or is a policy file required
to stipulate these details?Just sign the applet, the policy file is not necessary.
-Is the "keystore database" a java language service/process which runs in
the Server's memory and is simply accessed and started by default
by the client verifier program (appletview/web browser)?No.
-The public key certificate file (*.cer) is put in the webserver directory holding
the Applet jar file (ie. Apache Tomcat, for example).No. For a signed Jar, all the information is contained inside the Jar.
-Presumably, the web browser detects the signed jar
and certificate file, and provides the browser pop up menu asking the user
about a new, non recognised certificate (initially).
Is this so?No. It is the JVM that determines when to pop the confirmation dialog.
-With this being the case, can the applet now escape
the sandbox, ..Assuming the end-user OK's the trust prompt, yes.
..be it with or without the stipulated
policy permissions?Huh?

Read, Write and create files from java applet.

Dear All,
I have created a two files. One is applet and one application file. I am creating a instance of application file in applet. Application file is used for reading, writing and creating files. When I invoke applet from broser it dipslays error wrt file access permission. From the forum search I know that we need to sign the applet / edit the java policy to run the code locally. Final delivery of my code should execute on different system. Its not web. I have created a html page on submitting the form it invokes applet to read the form values from param and needs to update the values in xml file located locally. Please help me on how I can proceed with this fix.
Thanks in advance.

Sorry if I have not stated the problem clearly. I need to update content to files hosted in local system using java applets.
I belive there are two ways to achive that.One with jar signer and one with modifying the java policy file. But this application needs to be installed in different system locally as I have created a application with webpage as useinterface and need to update the content in local files on submission. Not sure on how to modify the java.policy files in each end user system and whats the value we need to update in java policy file. Please help me on the steps to be followed

Problem in display file in java applet embeded browser

hi, i am facing problem to display the file from local drive in java applet embeded browser. here is the error message i get:
Exception loading file from path:java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
i think it should be the java security problem and i have try to get the solution from internet. i try to solve by using the fllowing method:
keytool -genkey -keyalg rsa -alias yourkey
keytool -export -alias yourkey -file yourcert.crt
javac yourapplet.java
jar cvf yourapplet.jar yourapplet.class
jarsigner yourapplet.jar yourkey
but the command prompt ask me to enter the keystore password. i try to enter any password. but i show me the error:
keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect.
So may i know what is the problem actually?Thanks a lot.

Hi,
here is the sample coding :
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.mouse.MouseZoom;
import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.net.URL;
import java.net.MalformedURLException;
import org.web3d.j3d.loaders.VRML97Loader;
import com.sun.j3d.loaders.Scene;
public class SimpleVrml extends Applet implements ActionListener {
String location;
String initLocation;
Canvas3D canvas;
SimpleUniverse universe;
TransformGroup vpTransGroup;
VRML97Loader loader;
View view;
Panel panel;
Label label;
BranchGroup sceneRoot;
TransformGroup examineGroup;
BranchGroup sceneGroup;
BoundingSphere sceneBounds;
DirectionalLight headLight;
AmbientLight ambLight;
TextField textField;
Cursor waitCursor;
Cursor handCursor;
public SimpleVrml() {
initLocation="cylinder.wrl";
 setLayout(new BorderLayout());
 GraphicsConfiguration config =SimpleUniverse.getPreferredConfiguration();
 setLayout(new BorderLayout());
 canvas = new Canvas3D(config);
 add("Center",canvas);
 panel = new Panel();
 panel.setLayout(new FlowLayout(FlowLayout.LEFT));
 textField = new TextField(initLocation,60);
 textField.addActionListener(this);
 label = new Label("Location:");
 panel.add(label);
 panel.add(textField);
 add("North",panel);
 waitCursor = new Cursor(Cursor.WAIT_CURSOR);
 handCursor = new Cursor(Cursor.HAND_CURSOR);
 universe = new SimpleUniverse(canvas);
 ViewingPlatform viewingPlatform = universe.getViewingPlatform();
 vpTransGroup = viewingPlatform.getViewPlatformTransform();
 Viewer viewer = universe.getViewer();
 view = viewer.getView();
 setupBehavior();
 loader = new VRML97Loader();
 gotoLocation(initLocation);
public void actionPerformed(ActionEvent ae) {
 gotoLocation(textField.getText());
void gotoLocation(String location) {
 canvas.setCursor(waitCursor);
 if (sceneGroup != null) {
 sceneGroup.detach();
 Scene scene = null;
 try {
 URL loadUrl = new URL(location);
 try {
 // load the scene
 scene = loader.load(new URL(location));
 } catch (Exception e) {
 System.out.println("Exception loading URL:" + e);
 } catch (MalformedURLException badUrl) {
 // location may be a path name
 try {
 // load the scene
 scene = loader.load(location);
 } catch (Exception e) {
 System.out.println("Exception loading file from path:" + e);
 if (scene != null) {
 // get the scene group
 sceneGroup = scene.getSceneGroup();
 sceneGroup.setCapability(BranchGroup.ALLOW_DETACH);
 sceneGroup.setCapability(BranchGroup.ALLOW_BOUNDS_READ);
 // add the scene group to the scene
 examineGroup.addChild(sceneGroup);
 // now that the scene group is "live" we can inquire the bounds
 sceneBounds = (BoundingSphere)sceneGroup.getBounds();
 // set up a viewpoint to include the bounds
 setViewpoint();
 canvas.setCursor(handCursor);
void setViewpoint() {
 Transform3D viewTrans = new Transform3D();
 Transform3D eyeTrans = new Transform3D();
 // point the view at the center of the object
 Point3d center = new Point3d();
 sceneBounds.getCenter(center);
 double radius = sceneBounds.getRadius();
 Vector3d temp = new Vector3d(center);
 viewTrans.set(temp);
 // pull the eye back far enough to see the whole object
 double eyeDist = 1.4*radius / Math.tan(view.getFieldOfView() / 2.0);
 temp.x = 0.0;
 temp.y = 0.0;
 temp.z = eyeDist;
 eyeTrans.set(temp);
 viewTrans.mul(eyeTrans);
 // set the view transform
 vpTransGroup.setTransform(viewTrans);
private void setupBehavior() {
 sceneRoot = new BranchGroup();
 examineGroup = new TransformGroup();
 examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_EXTEND);
 examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_READ);
 examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_WRITE);
 examineGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
 examineGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
 sceneRoot.addChild(examineGroup);
 BoundingSphere behaviorBounds = new BoundingSphere(new Point3d(),
 Double.MAX_VALUE);
 MouseRotate mr = new MouseRotate();
 mr.setTransformGroup(examineGroup);
 mr.setSchedulingBounds(behaviorBounds);
 sceneRoot.addChild(mr);
 MouseTranslate mt = new MouseTranslate();
 mt.setTransformGroup(examineGroup);
 mt.setSchedulingBounds(behaviorBounds);
 sceneRoot.addChild(mt);
 MouseZoom mz = new MouseZoom();
 mz.setTransformGroup(examineGroup);
 mz.setSchedulingBounds(behaviorBounds);
 sceneRoot.addChild(mz);
 BoundingSphere lightBounds =
 new BoundingSphere(new Point3d(), Double.MAX_VALUE);
ambLight = new AmbientLight(true, new Color3f(1.0f, 1.0f, 1.0f));
ambLight.setInfluencingBounds(lightBounds);
ambLight.setCapability(Light.ALLOW_STATE_WRITE);
sceneRoot.addChild(ambLight);
headLight = new DirectionalLight();
headLight.setCapability(Light.ALLOW_STATE_WRITE);
headLight.setInfluencingBounds(lightBounds);
sceneRoot.addChild(headLight);
 universe.addBranchGraph(sceneRoot);
public static void main(String[] args) {
new MainFrame(new SimpleVrml(), 780, 780);
cylinder.wrl :
#VRML V2.0 utf8
# A cylinder
Shape {
appearance Appearance {
material Material { }
geometry Cylinder {
height 2.0
radius 1.5
view.html:
<html>
<applet code="SimpleVrml.class" width=600 height=600>
</applet>
</html>
error msg that i get :
Exception loading file from path:java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
i can display the wrl file in applet itself but i can't display in the browser.is it any problem with my code?Urgent, please help me. Thanks.

Java Applet Files in RH8 Output

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