Java.security.AccessControlException via appletviewer

I am currently working through the downloadable examples from the
JDBC APU Tutorial & Reference (2nd Ed.). I am having problems
running the OutputApplet via the appletviewer. I use the
connection string that works all the other examples however I get
the error message:
java.security.AccessControlException: access denied
(java.net.SocketPermission *'..nodename..'* resolve) at
java.security.AccessControlContext.checkPermission(AccessControlContext.java,
Compiled Code) at
java.security.AccessController.checkPermission(AccessController.java,
Compiled Code) at
java.lang.SecurityManager.checkPermission(SecurityManager.java,
Compiled Code) at
java.lang.SecurityManager.checkConnect(SecurityManager.java,
Compiled Code)
where the nodename is the oracle installation machine name. The
connection string I use is :
jdbc.oracle.thin:usrname/passwd@db_url:portNo:db_name
I am using Java1.2 and Oracle 7 thin drivers. All the other
examples have worked using this url string.
Please help. . .
null

Try using 8.1.5 or 8.1.6 jdbc thin drivers because only these two thin drivers support jdk1.2.
altrine.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Lucy Anderson ([email protected]):
I am currently working through the downloadable examples from the
JDBC APU Tutorial & Reference (2nd Ed.). I am having problems
running the OutputApplet via the appletviewer. I use the
connection string that works all the other examples however I get
the error message:
java.security.AccessControlException: access denied
(java.net.SocketPermission *'..nodename..'* resolve) at
java.security.AccessControlContext.checkPermission(AccessControlContext.java,
Compiled Code) at
java.security.AccessController.checkPermission(AccessController.java,
Compiled Code) at
java.lang.SecurityManager.checkPermission(SecurityManager.java,
Compiled Code) at
java.lang.SecurityManager.checkConnect(SecurityManager.java,
Compiled Code)
where the nodename is the oracle installation machine name. The
connection string I use is :
jdbc.oracle.thin:usrname/passwd@db_url:portNo:db_name
I am using Java1.2 and Oracle 7 thin drivers. All the other
examples have worked using this url string.
Please help. . . <HR></BLOCKQUOTE>
null

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Java.security.AccessControlException: access denied (java.util.PropertyPerm

Hi All,
I try to run an applet from Solaris 8 server on some client machine using IE5 and NetScape 6.2 ( I installed JRE 1.4, I also try other JRE versions) but I get the following errors again and agian,
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java.lang.ExceptionInInitializerError
at com.sun.ba.common.QConfiguration.loadPredefServices(QConfiguration.java:617)
at com.sun.ba.common.QConfiguration.getPredefServices(QConfiguration.java:630)
at com.sun.ba.tool.MainPanel.<init>(MainPanel.java:95)
at com.sun.ba.tool.QoSFrame.<init>(QoSFrame.java:48)
at com.sun.ba.tool.baApplet.init(baApplet.java:46)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied (java.util.PropertyPermission console read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
at java.lang.System.getProperty(Unknown Source)
at com.sun.ba.common.QDebug.<clinit>(QDebug.java:39)
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I dont know, but It may be that an Applet can only access the local machine. ie. If you run the applet on computer A and you want to edit the config on computer B, I do not believe you can. The applet can only talk to Computer A. You would have to:
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US101

Java.security.AccessControlException: access denied (java.util.PropertyPer

Hi All,
I try to run an applet from Solaris 8 server on some client machine using IE5 and NetScape 6.2 ( I installed JRE 1.4, I also try other JRE versions) but I get the following errors again and agian,
I even try to use appletviewer on the Solaris Box itself to open the applet but it makes no difference same errors
could somebody please help or give me a hint how should I start tracing what the problem might be ?
this applet comes with Solaris Bandwidth Manager as a gui administration tool ( webbased ) it supposed to change the configurations remotly over the web. I asure there is no solaris permission problem exist.
I use Tomcat on the server side.Installed JDK 1.3 on Solaris 8 with all the default settings.
i suppose something should be done with java.policy or java.security files i know nothing about java security please at least give me some URL's to find out more about this matter i searched a lot but couldn't find good documents about java default security restrictions
java.lang.ExceptionInInitializerError
     at com.sun.ba.common.QConfiguration.loadPredefServices(QConfiguration.java:617)
     at com.sun.ba.common.QConfiguration.getPredefServices(QConfiguration.java:630)
     at com.sun.ba.tool.MainPanel.<init>(MainPanel.java:95)
     at com.sun.ba.tool.QoSFrame.<init>(QoSFrame.java:48)
     at com.sun.ba.tool.baApplet.init(baApplet.java:46)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied (java.util.PropertyPermission console read)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
     at java.lang.System.getProperty(Unknown Source)
     at com.sun.ba.common.QDebug.<clinit>(QDebug.java:39)
     ... 7 more
any help would be appriciated so much.
thanks
mehmad

Hi,
Please make changes in the java.security files present in the jdk1.3/lib/jre/security/java.security.There you make the changes in the property which gives you the error.See if this helps..
regards vickyk

Exception: java.security.AccessControlException

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/Bo

Cant get image to load in JApplet - java.security.AccessControlException

hi,
I need to make a JApplet that loads and displays images. Before I worry about media tracker or anything else I need to get the image to load.
My code is:
package Applet;
import java.awt.*;
import javax.swing.*;
import java.applet.*;
* @author Nick
public class TestJApplet extends JApplet {
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        image = getImage(this.getDocumentBase(),"a.gif");
        g.drawRect(30,30,30,30);
}where a.gif is located in the same folder as the .java file.
I get the following message:
Exception in thread "AWT-EventQueue-1" java.security.AccessControlException: access denied (java.io.FilePermission \C:\Documents and Settings\Nick\Math\build\a.gif read)
        at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
        at java.security.AccessController.checkPermission(AccessController.java:427)
        at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
        at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
        at sun.awt.image.URLImageSource.<init>(URLImageSource.java:37)
        at sun.applet.AppletImageRef.reconstitute(AppletImageRef.java:33)
        at sun.misc.Ref.get(Ref.java:47)
        at sun.applet.AppletViewer.getCachedImage(AppletViewer.java:377)
        at sun.applet.AppletViewer.getImage(AppletViewer.java:372)
        at java.applet.Applet.getImage(Applet.java:236)
        at java.applet.Applet.getImage(Applet.java:258)
        at Applet.TestJApplet.paint(TestJApplet.java:27)
        at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248)
        at sun.awt.RepaintArea.paint(RepaintArea.java:224)
        at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:254)
        at java.awt.Component.dispatchEventImpl(Component.java:4031)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3803)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Exception in thread "AWT-EventQueue-1" java.security.AccessControlException: access denied (java.io.FilePermission \C:\Documents and Settings\Nick\Math\build\a.gif read)
        at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
        at java.security.AccessController.checkPermission(AccessController.java:427)
        at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
        at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
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        at sun.applet.AppletViewer.getCachedImage(AppletViewer.java:377)
        at sun.applet.AppletViewer.getImage(AppletViewer.java:372)
        at java.applet.Applet.getImage(Applet.java:236)
        at java.applet.Applet.getImage(Applet.java:258)
        at Applet.TestJApplet.paint(TestJApplet.java:27)
        at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248)
        at sun.awt.RepaintArea.paint(RepaintArea.java:224)
        at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:254)
        at java.awt.Component.dispatchEventImpl(Component.java:4031)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3803)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)Could someone help me get an image to load in an Applet/JApplet.
Cheers :)

From looking at your code there are two problems... the first is that you have a security exception being thrown because you are attempting to load a file locally with insufficient privileges to do so. This is because Applets have additional security levied on them so they don't say, in this circumstance steal a file off the loaded machine and send it back to the server that delivered them.
If you want to get your applet to load a local file (I don't think that is what you're asking here) then you have to digitally sign your applet and allow the user to decide if they want to be allow it to load a local file.
Nutshell is that you need to understand that the URL returned from getDocumentBase() in an applet is going to be from the Jar file you send the applet with or the URL you served the applet from. This is a bit of debugging code to show you what you are looking at and hopefully explain anything ambiguous I may have stated.
package testapplication;
import java.awt.EventQueue;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
* Description : <p></p>
* @author John Michael Resler<br/>
* Class : DocBaseApplet<br/>
* Creation Time : 8:31 AM<br/>
* Creation Date : June 18, 2006<br/>
* Compiler : Sun Java Community Edition (version 1.5.0_06)<br/>
public class DocBaseApplet extends javax.swing.JApplet implements MouseListener {
     * Initializes the applet DocBaseApplet
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            EventQueue.invokeAndWait(new Runnable() {
                public void run() {
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        } catch (Exception ex) {
            ex.printStackTrace();
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        documentBaseLabel = new javax.swing.JLabel();
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            public void mouseClicked(java.awt.event.MouseEvent evt) {
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            .add(layout.createSequentialGroup()
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                .add(documentBaseLabel, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 376, Short.MAX_VALUE)
                .addContainerGap())
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    public void mousePressed(MouseEvent e) {
    public void mouseReleased(MouseEvent e) {
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Java.security.AccessControlException: access denied (java.io.FilePermission

Hi,
I have written swing code using applets.The code is::
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class JButtonDemo extends JApplet implements ActionListener{
JTextField jtf;
public void init(){
Container c = getContentPane();
c.setLayout(new FlowLayout());
ImageIcon ii = new ImageIcon("");
JButton but = new JButton(ii);
but.setActionCommand("myButton");
but.addActionListener(this);
c.add(but);
jtf = new JTextField(10);
c.add(jtf);
public void actionPerformed(ActionEvent ae){
jtf.setText(ae.getActionCommand());
The html is::
<html>
<body>
<applet code="JButtonDemo.class" width="250" height="150">
</applet
>
</body>
</html>
Its getting compiled but when I'm trying to run it like..
appletviewer JButtonDemo.html
its throwing the following error ..
java.security.AccessControlException: access denied (java.io.FilePermission read)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:269)
at java.security.AccessController.checkPermission(AccessController.java:401)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:524)
at java.lang.SecurityManager.checkRead(SecurityManager.java:863)
at sun.awt.SunToolkit.getImageFromHash(SunToolkit.java:472)
at sun.awt.SunToolkit.getImage(SunToolkit.java:486)
at javax.swing.ImageIcon.<init>(ImageIcon.java:81)
at javax.swing.ImageIcon.<init>(ImageIcon.java:107)
at JButtonDemo.init(JButtonDemo.java:10)
at sun.applet.AppletPanel.run(AppletPanel.java:353)
at java.lang.Thread.run(Thread.java:534)
could anyone pls help me in rectifying this problem...
Thanks in advance
Srinivas

You must have missed something, here is how I got it to work:
appelt in c:\temp\test.java:import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JTextField;
public class test extends JApplet implements ActionListener {
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          Container c = getContentPane();
          c.setLayout(new FlowLayout());
          ImageIcon ii = new ImageIcon("c:/test.jpg");
          JButton but = new JButton(ii);
          but.setActionCommand("myButton");
          but.addActionListener(this);
          c.add(but);
          jtf = new JTextField(10);
          c.add(jtf);
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          jtf.setText(ae.getActionCommand());
}html file in c:\temp:<DIV id="lblOutputText">Output comes here</DIV>
<object
    classid = "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
    codebase = "http://java.sun.com/update/1.5.0/jinstall-1_5-windows-i586.cab"
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         pluginspage = "http://java.sun.com/products/plugin/index.html#download">
         <noembed>
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</object>The batch file creating the signed jar in c:\temp\sign.batdel *.cer
del *.com
del *.jar
del *.class
javac test.java
keytool -genkey -keystore harm.com -keyalg rsa -dname "CN=Harm Meijer, OU=Technology, O=org, L=Amsterdam, ST=, C=NL" -alias harm -validity 3600 -keypass password -storepass password
rem keytool -export -alias harm -file exportPublicKey.cer -keystore harm.com -storepass password
jar cf0 test.jar test.class
jarsigner -keystore harm.com -storepass password -keypass password -signedjar sTest.jar test.jar harm
del *.class
pause

HELP!!! java.security.AccessControlException: access denied

Please help!
I have the project to use the applet to show the form, this applet is needed to read the file from the server side. when i using the jbuilder to coding, it can work to use the appletviewer to run the program to read the file.
After that i placed the code to the webapp (localhost), when i start up tomcat and use the ie to view the http://localhost:8080/auditForm/AuditForm.html. (this AuditForm.html is embedded the test.class. test.class use to read the file.
but error was occurred.
i am using the File Object to read file
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     at java.lang.SecurityManager.checkRead(Unknown Source)
     at java.io.File.canRead(Unknown Source)
     at DBconfig.<init>(DBconfig.java:31)
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urgent!!!!

Hey guys,
You can access what ever file you want on the originating host i.e. the server.
Im guessing you guys are testing your applet code probably before it takes the form of an applet. It's fundamental to realise that applets are downloaded to the client and excuted in a 'sandbox' by the java-plugin installed in the client browser. Hence using a File instance pointing somewhere on the C:\ drive is totally pointless as you likely won't have permission to access the client's hard drive anyway. More to the point, it is totally wrong; the property files or movies do not reside on the client machine.... and there is no need to confuse matters by talking about signing Jars.
My advice is to read the Applet/JApplet APIs which cleary show how to access 'resources' on the server - no extra permissions are needed so it is not even a security issue. Also, you web application usually can not see outside its context/document base so you will need to put the property file or movies in the same directory (or a visible sub-directory) as the applet code/jar itself.
Hope this info is of some use.
Warm regards.

Putting images in an applet - java.security.AccessControlException

So I made this Blackjack game using many many classes and a GUI and it worked fine. I then decided to put it online and turned it into an applet. This isn't my first applet that i've put online, so I know that I did all the syntax in the code right. On the other hand, this is the first applet i've put online that includes pictures. The game has a Card class with an ImageIcon variable for the image of the card. The problem is that the applet won't run in a browser, and I receive the follow exception:
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     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
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     at java.lang.Thread.run(Unknown Source)
"Back.png" refers to a picture of the back of the card. I have this picture, along with the other 52 card pictures uploaded to the website (i'm hosting on Netfirms). Please help me. I'm willing to share any necessary source code if the need arises.

You're trying to read the images off the local hard drive or from a server other than the one the applet came from.
That's normally not allowed.
Use Class.getResource and/or getResourceAsStream, and javax.imageio.ImageIO.read, to read the images. You specify the image paths as relative to the applet (e.g., don't start them with "C:\").

Applet Error:java.security.AccessControlException: access denied

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fine within the Applet viewer, however, when I trying to load the applet in IE5.5 I got the following
error message in java console:
Java(TM) Plug-in
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Failed to query environment: 'access denied (java.util.PropertyPermission jbo.jdbc.driver.verbose read)'
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at javax.naming.InitialContext.lookup(InitialContext.java:349)
at oracle.jbo.client.remote.ejb.aurora.AuroraEJBAmHomeImpl.connectToService(AuroraEJBAmHomeImpl.java:179)
at oracle.jbo.client.remote.ejb.aurora.AuroraEJBAmHomeImpl.createSession(AuroraEJBAmHomeImpl.java:152)
at oracle.jbo.client.remote.ejb.aurora.AuroraEJBAmHomeImpl.initRemoteHome(AuroraEJBAmHomeImpl.java:123)
at oracle.jbo.client.remote.ejb.aurora.AuroraEJBAmHomeImpl.<init>(AuroraEJBAmHomeImpl.java:59)
at oracle.jbo.client.remote.ejb.aurora.AuroraEJBInitialContext.createJboHome(AuroraEJBInitialContext.java:47)
at oracle.jbo.common.JboInitialContext.lookup(JboInitialContext.java:72)
at javax.naming.InitialContext.lookup(InitialContext.java:349)
at oracle.dacf.dataset.SessionInfo._createAppModule(SessionInfo.java:2330)
at oracle.dacf.dataset.SessionInfo.connect(SessionInfo.java:1799)
at oracle.dacf.dataset.SessionInfo.openProducerObject(SessionInfo.java:1848)
at oracle.dacf.dataset.ProducerObject.open(ProducerObject.java:94)
at oracle.dacf.dataset.SessionInfo.publishSession(SessionInfo.java:1305)
at oracle.dacf.dataset.SessionInfo.publishSession(SessionInfo.java:1287)
at broadcastapplet.myBroadCastApplet.init(myBroadCastApplet.java:70)
at sun.applet.AppletPanel.run(Compiled Code)
at java.lang.Thread.run(Thread.java:479)
The Oracle 8.1.6 runs on Win2000, I put the JAR & related zip files in the same machine's IIS webserver.
Is anyone can help?
ERic

Hi Shaji,
Are you calling a webservice from within an Xacute Query for your applet? On first glance, it looks like a web service call is being rejected due to security permissions. If you have a webservice call (or HTTP post/get), can you test it separately with the same credentials as the webpage is using?
Regards,
Mike

How can i deal with java.security.AccessControlException?

Hi all, I need to implement JavaMail using Servlet and deploy throught J2EE deployment tool. But when i test out the servlet i will always encounter this exception thrown. How can i solve this?
java.security.AccessControlException: access denied (java.util.PropertyPermission * read,write)
This is the servlet i am testing. Please advise. Thanks in advance!
* @(#)JavaMailServlet.java     1.3 99/12/06
* Copyright 1998, 1999 Sun Microsystems, Inc. All Rights Reserved.
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
import java.io.*;
import java.util.*;
import java.text.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
* This is a servlet that demonstrates the use of JavaMail APIs
* in a 3-tier application. It allows the user to login to an
* IMAP store, list all the messages in the INBOX folder, view
* selected messages, compose and send a message, and logout.
* <p>
* Please note: This is NOT an example of how to write servlets!
* This is simply to show that JavaMail can be used in a servlet.
* <p>
* For more information on this servlet, see the
* JavaMailServlet.README.txt file.
* <p>
* For more information on servlets, see
* * http://java.sun.com/products/java-server/servlets/index.html
* @author Max Spivak
public class JavaMailServlet extends HttpServlet implements SingleThreadModel {
String protocol = "POP3";
String mbox = "INBOX";
* This method handles the "POST" submission from two forms: the
* login form and the message compose form. The login form has the
* following parameters: <code>hostname</code>, <code>username</code>,
* and <code>password</code>. The <code>send</code> parameter denotes
* that the method is processing the compose form submission.
public void doPost(HttpServletRequest req, HttpServletResponse res)
     throws ServletException, IOException {
// get the session
     HttpSession ssn = req.getSession(true);
     String send = req.getParameter("send");
String host = req.getParameter("hostname");
String user = req.getParameter("username");
String passwd = req.getParameter("password");
URLName url = new URLName(protocol, host, -1, mbox, user, passwd);
ServletOutputStream out = res.getOutputStream();
     res.setContentType("text/html");
     out.println("<html><body bgcolor=\"#CCCCFF\">");
     if (send != null) {
     // process message sending
     send(req, res, out, ssn);
     } else {
     // initial login
     // create
     MailUserData mud = new MailUserData(url);
     ssn.putValue("javamailservlet", mud);
     try {
          Properties props = System.getProperties();
          System.out.println("url");
          props.put("mail.smtp.host", host);
          Session session = Session.getDefaultInstance(props, null);
          session.setDebug(false);
          Store store = session.getStore(url);
          store.connect();
          Folder folder = store.getDefaultFolder();
          if (folder == null)
          throw new MessagingException("No default folder");
          folder = folder.getFolder(mbox);
          if (folder == null)
          throw new MessagingException("Invalid folder");
          folder.open(Folder.READ_WRITE);
          int totalMessages = folder.getMessageCount();
          Message[] msgs = folder.getMessages();
          FetchProfile fp = new FetchProfile();
          fp.add(FetchProfile.Item.ENVELOPE);
          folder.fetch(msgs, fp);
          // track who logged in
          System.out.println("Login from: " + store.getURLName());
          // save stuff into MUD
          mud.setSession(session);
          mud.setStore(store);
          mud.setFolder(folder);
          // splash
          out.print("<center>");
          out.print("<font face=\"Arial,Helvetica\" font size=+3>");
          out.println("<b>Welcome to JavaMail!</b></font></center><p>");
          // folder table
          out.println("<table width=\"50%\" border=0 align=center>");
          // folder name column header
          out.print("<tr><td width=\"75%\" bgcolor=\"#ffffcc\">");
          out.print("<font face=\"Arial,Helvetica\" font size=-1>");
          out.println("<b>FolderName</b></font></td><br>");
          // msg count column header
          out.print("<td width=\"25%\" bgcolor=\"#ffffcc\">");
          out.print("<font face=\"Arial,Helvetica\" font size=-1>");
          out.println("<b>Messages</b></font></td><br>");
          out.println("</tr>");
          // folder name
          out.print("<tr><td width=\"75%\" bgcolor=\"#ffffff\">");
          out.print("<a href=\"" + HttpUtils.getRequestURL(req) + "\">" +
               "Inbox" + "</a></td><br>");
          // msg count
          out.println("<td width=\"25%\" bgcolor=\"#ffffff\">" +
               totalMessages + "</td>");
          out.println("</tr>");
          out.println("</table");
     } catch (Exception ex) {
          out.println(ex.toString());
     } finally {
          out.println("</body></html>");
          out.close();
* This method handles the GET requests for the client.
public void doGet (HttpServletRequest req, HttpServletResponse res)
     throws ServletException, IOException {
HttpSession ses = req.getSession(false); // before we write to out
ServletOutputStream out = res.getOutputStream();
     MailUserData mud = getMUD(ses);
     if (mud == null) {
     res.setContentType("text/html");
     out.println("<html><body>Please Login (no session)</body></html>");
     out.close();
     return;
     if (!mud.getStore().isConnected()) {
     res.setContentType("text/html");
     out.println("<html><body>Not Connected To Store</body></html>");
     out.close();
     return;
     // mux that takes a GET request, based on parameters figures
     // out what it should do, and routes it to the
     // appropriate method
     // get url parameters
     String msgStr = req.getParameter("message");
String logout = req.getParameter("logout");
     String compose = req.getParameter("compose");
     String part = req.getParameter("part");
     int msgNum = -1;
     int partNum = -1;
     // process url params
     if (msgStr != null) {
     // operate on message "msgStr"
     msgNum = Integer.parseInt(msgStr);
     if (part == null) {
          // display message "msgStr"
res.setContentType("text/html");
          displayMessage(mud, req, out, msgNum);
     } else if (part != null) {
          // display part "part" in message "msgStr"
          partNum = Integer.parseInt(part);
displayPart(mud, msgNum, partNum, out, res);
     } else if (compose != null) {
     // display compose form
     compose(mud, res, out);
} else if (logout != null) {
     // process logout
try {
mud.getFolder().close(false);
mud.getStore().close();
          ses.invalidate();
out.println("<html><body>Logged out OK</body></html>");
} catch (MessagingException mex) {
out.println(mex.toString());
     } else {
     // display headers
     displayHeaders(mud, req, out);
/* main method to display messages */
private void displayMessage(MailUserData mud, HttpServletRequest req,
                    ServletOutputStream out, int msgNum)
     throws IOException {
     out.println("<html>");
out.println("<HEAD><TITLE>JavaMail Servlet</TITLE></HEAD>");
     out.println("<BODY bgcolor=\"#ccccff\">");
     out.print("<center><font face=\"Arial,Helvetica\" ");
     out.println("font size=\"+3\"><b>");
     out.println("Message " + (msgNum+1) + " in folder " +
          mud.getStore().getURLName() +
          "/INBOX</b></font></center><p>");
     try {
     Message msg = mud.getFolder().getMessage(msgNum);
     // first, display this message's headers
     displayMessageHeaders(mud, msg, out);
     // and now, handle the content
     Object o = msg.getContent();
     //if (o instanceof String) {
     if (msg.isMimeType("text/plain")) {
          out.println("<pre>");
          out.println((String)o);
          out.println("</pre>");
     //} else if (o instanceof Multipart){
     } else if (msg.isMimeType("multipart/*")) {
          Multipart mp = (Multipart)o;
          int cnt = mp.getCount();
          for (int i = 0; i < cnt; i++) {
          displayPart(mud, msgNum, mp.getBodyPart(i), i, req, out);
     } else {
          out.println(msg.getContentType());
     } catch (MessagingException mex) {
     out.println(mex.toString());
     out.println("</BODY></html>");
     out.close();
* This method displays a message part. <code>text/plain</code>
* content parts are displayed inline. For all other parts,
* a URL is generated and displayed; clicking on the URL
* brings up the part in a separate page.
private void displayPart(MailUserData mud, int msgNum, Part part,
               int partNum, HttpServletRequest req,
               ServletOutputStream out)
     throws IOException {
     if (partNum != 0)
     out.println("<p><hr>");
try {
     String sct = part.getContentType();
     if (sct == null) {
          out.println("invalid part");
          return;
     ContentType ct = new ContentType(sct);
     if (partNum != 0)
          out.println("<b>Attachment Type:</b> " +
               ct.getBaseType() + "<br>");
     if (ct.match("text/plain")) {
          // display text/plain inline
          out.println("<pre>");
          out.println((String)part.getContent());
          out.println("</pre>");
     } else {
          // generate a url for this part
          String s;
          if ((s = part.getFileName()) != null)
          out.println("<b>Filename:</b> " + s + "<br>");
          s = null;
          if ((s = part.getDescription()) != null)
          out.println("<b>Description:</b> " + s + "<br>");
          out.println("<a href=\"" +
               HttpUtils.getRequestURL(req) +
               "?message=" +
               msgNum + "&part=" +
               partNum + "\">Display Attachment</a>");
     } catch (MessagingException mex) {
     out.println(mex.toString());
* This method gets the stream from for a given msg part and
* pushes it out to the browser with the correct content type.
* Used to display attachments and relies on the browser's
* content handling capabilities.
private void displayPart(MailUserData mud, int msgNum,
               int partNum, ServletOutputStream out,
               HttpServletResponse res)
     throws IOException {
     Part part = null;
try {
     Message msg = mud.getFolder().getMessage(msgNum);
     Multipart mp = (Multipart)msg.getContent();
     part = mp.getBodyPart(partNum);
     String sct = part.getContentType();
     if (sct == null) {
          out.println("invalid part");
          return;
     ContentType ct = new ContentType(sct);
     res.setContentType(ct.getBaseType());
     InputStream is = part.getInputStream();
     int i;
     while ((i = is.read()) != -1)
          out.write(i);
     out.flush();
     out.close();
     } catch (MessagingException mex) {
     out.println(mex.toString());
* This is a utility message that pretty-prints the message
* headers for message that is being displayed.
private void displayMessageHeaders(MailUserData mud, Message msg,
                    ServletOutputStream out)
     throws IOException {
     try {
     out.println("<b>Date:</b> " + msg.getSentDate() + "<br>");
Address[] fr = msg.getFrom();
if (fr != null) {
boolean tf = true;
out.print("<b>From:</b> ");
for (int i = 0; i < fr.length; i++) {
out.print(((tf) ? " " : ", ") + getDisplayAddress(fr));
tf = false;
out.println("<br>");
Address[] to = msg.getRecipients(Message.RecipientType.TO);
if (to != null) {
boolean tf = true;
out.print("<b>To:</b> ");
for (int i = 0; i < to.length; i++) {
out.print(((tf) ? " " : ", ") + getDisplayAddress(to[i]));
tf = false;
out.println("<br>");
Address[] cc = msg.getRecipients(Message.RecipientType.CC);
if (cc != null) {
boolean cf = true;
out.print("<b>CC:</b> ");
for (int i = 0; i < cc.length; i++) {
out.print(((cf) ? " " : ", ") + getDisplayAddress(cc[i]));
          cf = false;
out.println("<br>");
     out.print("<b>Subject:</b> " +
          ((msg.getSubject() !=null) ? msg.getSubject() : "") +
          "<br>");
} catch (MessagingException mex) {
     out.println(msg.toString());
* This method displays the URL's for the available commands and the
* INBOX headerlist
private void displayHeaders(MailUserData mud,
                    HttpServletRequest req,
ServletOutputStream out)
     throws IOException {
SimpleDateFormat df = new SimpleDateFormat("EE M/d/yy");
out.println("<html>");
out.println("<HEAD><TITLE>JavaMail Servlet</TITLE></HEAD>");
     out.println("<BODY bgcolor=\"#ccccff\"><hr>");
     out.print("<center><font face=\"Arial,Helvetica\" font size=\"+3\">");
     out.println("<b>Folder " + mud.getStore().getURLName() +
          "/INBOX</b></font></center><p>");
     // URL's for the commands that are available
     out.println("<font face=\"Arial,Helvetica\" font size=\"+3\"><b>");
out.println("<a href=\"" +
          HttpUtils.getRequestURL(req) +
          "?logout=true\">Logout</a>");
out.println("<a href=\"" +
          HttpUtils.getRequestURL(req) +
          "?compose=true\" target=\"compose\">Compose</a>");
     out.println("</b></font>");
     out.println("<hr>");
     // List headers in a table
out.print("<table cellpadding=1 cellspacing=1 "); // table
     out.println("width=\"100%\" border=1>"); // settings
     // sender column header
     out.println("<tr><td width=\"25%\" bgcolor=\"ffffcc\">");
     out.println("<font face=\"Arial,Helvetica\" font size=\"+1\">");
     out.println("<b>Sender</b></font></td>");
     // date column header
     out.println("<td width=\"15%\" bgcolor=\"ffffcc\">");
     out.println("<font face=\"Arial,Helvetica\" font size=\"+1\">");
     out.println("<b>Date</b></font></td>");
     // subject column header
     out.println("<td bgcolor=\"ffffcc\">");
     out.println("<font face=\"Arial,Helvetica\" font size=\"+1\">");
     out.println("<b>Subject</b></font></td></tr>");
     try {
     Folder f = mud.getFolder();
     int msgCount = f.getMessageCount();
     Message m = null;
     // for each message, show its headers
     for (int i = 1; i <= msgCount; i++) {
m = f.getMessage(i);
          // if message has the DELETED flag set, don't display it
          if (m.isSet(Flags.Flag.DELETED))
          continue;
          // from
out.println("<tr valigh=middle>");
out.print("<td width=\"25%\" bgcolor=\"ffffff\">");
          out.println("<font face=\"Arial,Helvetica\">" +
               ((m.getFrom() != null) ?
               m.getFrom()[0].toString() :
               "" ) +
               "</font></td>");
          // date
out.print("<td nowrap width=\"15%\" bgcolor=\"ffffff\">");
          out.println("<font face=\"Arial,Helvetica\">" +
df.format((m.getSentDate()!=null) ?
                    m.getSentDate() : m.getReceivedDate()) +
               "</font></td>");
          // subject & link
out.print("<td bgcolor=\"ffffff\">");
          out.println("<font face=\"Arial,Helvetica\">" +
          "<a href=\"" +
               HttpUtils.getRequestURL(req) +
"?message=" +
i + "\">" +
((m.getSubject() != null) ?
               m.getSubject() :
               "<i>No Subject</i>") +
"</a>" +
"</font></td>");
out.println("</tr>");
     } catch (MessagingException mex) {
     out.println("<tr><td>" + mex.toString() + "</td></tr>");
     mex.printStackTrace();
     out.println("</table>");
     out.println("</BODY></html>");
     out.flush();
     out.close();
* This method handles the request when the user hits the
* <i>Compose</i> link. It send the compose form to the browser.
private void compose(MailUserData mud, HttpServletResponse res,
               ServletOutputStream out)
     throws IOException {
     res.setContentType("text/html");
     out.println(composeForm);
     out.close();
* This method processes the send request from the compose form
private void send(HttpServletRequest req, HttpServletResponse res,
          ServletOutputStream out, HttpSession ssn)
     throws IOException {
String to = req.getParameter("to");
     String cc = req.getParameter("cc");
     String subj = req.getParameter("subject");
     String text = req.getParameter("text");
     try {
     MailUserData mud = getMUD(ssn);
     if (mud == null)
          throw new Exception("trying to send, but not logged in");
     Message msg = new MimeMessage(mud.getSession());
     InternetAddress[] toAddrs = null, ccAddrs = null;
     if (to != null) {
          toAddrs = InternetAddress.parse(to, false);
          msg.setRecipients(Message.RecipientType.TO, toAddrs);
     } else
          throw new MessagingException("No \"To\" address specified");
     if (cc != null) {
          ccAddrs = InternetAddress.parse(cc, false);
          msg.setRecipients(Message.RecipientType.CC, ccAddrs);
     if (subj != null)
          msg.setSubject(subj);
     URLName u = mud.getURLName();
     msg.setFrom(new InternetAddress(u.getUsername() + "@" +
                         u.getHost()));
     if (text != null)
          msg.setText(text);
     Transport.send(msg);
     out.println("<h1>Message sent successfully</h1></body></html>");
     out.close();
     } catch (Exception mex) {
     out.println("<h1>Error sending message.</h1>");
     out.println(mex.toString());
     out.println("<br></body></html>");
// utility method; returns a string suitable for msg header display
private String getDisplayAddress(Address a) {
String pers = null;
String addr = null;
if (a instanceof InternetAddress &&
((pers = ((InternetAddress)a).getPersonal()) != null)) {
     addr = pers + " "+"<"+((InternetAddress)a).getAddress()+">";
} else
addr = a.toString();
return addr;
// utility method; retrieve the MailUserData
// from the HttpSession and return it
private MailUserData getMUD(HttpSession ses) throws IOException {
     MailUserData mud = null;
     if (ses == null) {
     return null;
     } else {
     if ((mud = (MailUserData)ses.getValue("javamailservlet")) == null){
          return null;
     return mud;
public String getServletInfo() {
return "A mail reader servlet";
* This is the HTML code for the compose form. Another option would
* have been to use a separate html page.
private static String composeForm = "<HTML><HEAD><TITLE>JavaMail Compose</TITLE></HEAD><BODY BGCOLOR=\"#CCCCFF\"><FORM ACTION=\"/servlet/JavaMailServlet\" METHOD=\"POST\"><input type=\"hidden\" name=\"send\" value=\"send\"><P ALIGN=\"CENTER\"><B><FONT SIZE=\"4\" FACE=\"Verdana, Arial, Helvetica\">JavaMail Compose Message</FONT></B><P><TABLE BORDER=\"0\" WIDTH=\"100%\"><TR><TD WIDTH=\"16%\" HEIGHT=\"22\">     <P ALIGN=\"RIGHT\"><B><FONT FACE=\"Verdana, Arial, Helvetica\">To:</FONT></B></TD><TD WIDTH=\"84%\" HEIGHT=\"22\"><INPUT TYPE=\"TEXT\" NAME=\"to\" SIZE=\"30\"> <FONT SIZE=\"1\" FACE=\"Verdana, Arial, Helvetica\"> (separate addresses with commas)</FONT></TD></TR><TR><TD WIDTH=\"16%\"><P ALIGN=\"RIGHT\"><B><FONT FACE=\"Verdana, Arial, Helvetica\">CC:</FONT></B></TD><TD WIDTH=\"84%\"><INPUT TYPE=\"TEXT\" NAME=\"cc\" SIZE=\"30\"> <FONT SIZE=\"1\" FACE=\"Verdana, Arial, Helvetica\"> (separate addresses with commas)</FONT></TD></TR><TR><TD WIDTH=\"16%\"><P ALIGN=\"RIGHT\"><B><FONT FACE=\"Verdana, Arial, Helvetica\">Subject:</FONT></B></TD><TD WIDTH=\"84%\"><INPUT TYPE=\"TEXT\" NAME=\"subject\" SIZE=\"55\"></TD></TR><TR><TD WIDTH=\"16%\"> </TD><TD WIDTH=\"84%\"><TEXTAREA NAME=\"text\" ROWS=\"15\" COLS=\"53\"></TEXTAREA></TD></TR><TR><TD WIDTH=\"16%\" HEIGHT=\"32\"> </TD><TD WIDTH=\"84%\" HEIGHT=\"32\"><INPUT TYPE=\"SUBMIT\" NAME=\"Send\" VALUE=\"Send\"><INPUT TYPE=\"RESET\" NAME=\"Reset\" VALUE=\"Reset\"></TD></TR></TABLE></FORM></BODY></HTML>";
* This class is used to store session data for each user's session. It
* is stored in the HttpSession.
class MailUserData {
URLName url;
Session session;
Store store;
Folder folder;
public MailUserData(URLName urlname) {
     url = urlname;
public URLName getURLName() {
     return url;
public Session getSession() {
     return session;
public void setSession(Session s) {
     session = s;
public Store getStore() {
     return store;
public void setStore(Store s) {
     store = s;
public Folder getFolder() {
     return folder;
public void setFolder(Folder f) {
     folder = f;

You posted a thousand lines of badly-formatted code and didn't have the sense to say which one had the exception.
My guess is that it was this one:Session session = Session.getDefaultInstance(props, null);because that happened to me. I fixed it by calling getInstance instead of getDefaultInstance.
However if that isn't the problem, how about spending a few seconds to post a less useless question?

Java.lang.Exception:java.security.accesscontrolException:access denied

good afternoon to all experts
i am getting the following exception when i am going to read file
java.lang.Exception:java.security.accesscontrolException:accessdenied(java.io.FilePermission c:\premiji.rar)
my applet as follows
import java.io.*;
import java.applet.*;
import java.awt.*;
import java.security.*;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.*;
import java.io.IOException;
public class TestApp extends Applet
     public static TextField t;
     public static String key;
    public Label l;
public void init()
   setBackground(Color.GRAY);
   setLayout(null);
   t=new TextField(" ");
   t.setEchoChar('*');
   l=new Label("Enter ur key");
   l.setBounds(0,2,75,20);
   t.setForeground(Color.RED);
   t.setBounds(78,2,150,20);
add(l);
   add(t);
public static String eFile(String plainFile)throws Exception
{String cFile="c://suri.rar";
     key=t.getText();
    byte[]raw=key.getBytes("UTF8");
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "Blowfish");
    Cipher cipher = Cipher.getInstance("Blowfish");
    Cipher cipher2=Cipher.getInstance("Blowfish");
    cipher2.init(Cipher.DECRYPT_MODE,skeySpec);
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
    InputStream fis,dis;
    FileOutputStream fos,dos;
    fis = new FileInputStream("c://premji.rar");
    fis = new javax.crypto.CipherInputStream(fis, cipher);
    fos = new FileOutputStream(cFile);
    byte[] b = new byte[8];
    int i = fis.read(b);
    while (i != -1) {
        fos.write(b, 0, i);
        i = fis.read(b);
dis = new FileInputStream(cFile);
dis = new javax.crypto.CipherInputStream(dis, cipher2);
dos=new FileOutputStream("c://madhu.rar");
byte[] c=new byte[8];
int j=dis.read(c);
while(j!=-1)
     dos.write(c,0,j);
     j=dis.read(c);
   fis.close() ;
   fos.close();
   return cFile;
}my html as follows
html>
<script language="JavaScript">
function pass()
    document.myForm.uname.value=document.myApp.eFile(document.myForm.upfile.value);
</script>
<applet name="myApp" code="TestApp.class" archive="TestApp.jar" width=600 height=80></applet>
<body>
<form name="myForm" >
Name
<input type="text" name="uname"/>
File
<input type="file" name="upfile"/>
<input type=button value="click" onClick="pass();">
<input type="submit"/>
</form>
</body>
</html>note:
i signed my applet like
keytool -genkey -alias sgsits -validity 365
jarsigner TestApp.jar sgsitshave we to modify polacy file also?
if so how & which one modify
any suggestion would be greatly appreciated
thanks in advance

I assume your signature is correct.
Signing the applet enables privileges (like file IO) whenever all the calls on the stack leading
to the sensitive operation (in your case fis = new FileInputStream("c://premji.rar")) originate
from the signed jar. It is not your case, as you come into the applet from javascript.
The solution is to use AccessController.doPrivileged...(). It was designed with this situation in mind.

Java.security.AccessControlException in a RMI application

Hello,
I have the following error, while I'm launching my RMI application :
access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:272)
at java.security.AccessController.checkPermission(AccessController.java:399)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:545)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1044)
at java.net.Socket.<init>(Socket.java:262)
I was trying the following instruction :
if (System.getSecurityManager() == null)
System.setSecurityManager(new RMISecurityManager());
try{
Recepteur obj = new Recepteur();
Naming.rebind("//localhost/Recepteur", obj);
However, I have written in the java.policy file :
grant codeBase "http://127.0.0.1:1099/-" {
permission java.security.AllPermission;
Does anyone know how to solve this problem ?
Thx

Help him please or he would be obliged to give me the dukes...

Signed applet not working in firefox - java.security.AccessControlException

Hello,
I have a signed applet that works fine in IE 7 but in Firefox I'm getting this exception in the java console:
java.security.AccessControlException: access denied (java.net.SocketPermission myhost.com resolve)
I already tried to run the applet with different JRE versions in Firefox with the same result: 1.6.0_01, 1.6.0_02, 1.6.0_03, 1.6.0_05
I'll appreciate your help.

thanx 4 replying
using the browser to view Applet is not recomended that is because if u change the the source-code and recompile the applet then run it using the broswer it will run the old-version
Also i've found the solution here
http://www.cs.utah.edu/classes/cs1021/notes/lecture03/eclipse_help.html

Java.security.AccessControlException while trying to run the server app

ok, pretty new with java and rmi, so I wanted to run the application from the sun rmi tutorial
http://java.sun.com/docs/books/tutorial/rmi/TOC.html.
It all builds ok, i run the rmiregistry ,but when i try to run the server i get :
java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:1099 connect,resolve)
     at java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)
     at java.security.AccessController.checkPermission(AccessController.java:546)
     at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
     at java.lang.SecurityManager.checkConnect(SecurityManager.java:1034)
     at java.net.Socket.connect(Socket.java:513)
     at java.net.Socket.connect(Socket.java:469)
     at java.net.Socket.<init>(Socket.java:366)
     at java.net.Socket.<init>(Socket.java:180)
     at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
     at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
     at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
     at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
     at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
     at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
     at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
     at engine.ComputeEngine.main(ComputeEngine.java:30)
what i noticed is that this output is similar to not running rmiregistry at all, so i guess the problem is with the way i'm running rmiregistry
thx in advance

You're running the server with a SecurityManager. There's no need to do that at first. Get rid of it. When you have it working, write yourself a .policy file that grants that permission, and any others you discover it needs, and name that as your security policy file, e.g.
java -Djava.security.policy=my.policy -Djava.security.manager mypackage.MyServer ...

Java.security.AccessControlException via appletviewer

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