Java applet (internet access)

I am trying to access internet through wifi on Blackberry Curve 9300 phone. I am behind my college LAN. I get this message:
Cisco Clean Access Java Applet web client could not be launched. The
reasons for this might include:
Java plug-in not installed in your browser
Java applet is disabled in your browser's security settings
I get stuck at this point. I have enabled all java scripts etc. on my
browser. Clicking on "download and install java plug-in from here", i
come back to the same page.
How could this problem be fixed?

Hello vipuls,
I would suggest contacting your tech department at your school verify what the Cisco Clean Access web client requirements are to connect.
Thank you.
-HB
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Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

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When using Java Wizard with Firefox 3.6.23 on a Mac OS X 10.6.8 it keep getting an error message: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem." Have NO idea how to fix this problem.

When trying to upload files I received the following error: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem."

If the problem is with a site that is hosted using MOVEit DMZ by Ipswitch, please notify the site owner of the issue and ask them to apply the patch that is available on the support site to resolve the issue.
This is a better resolution than downgrading your version of Java that was updated due to security issues.

After downloadeding the latest Java plugin, I start to receive "Please configure your browser to allow Java applets to access the filesystem" message when I try to run a download wizard. What do I need to do? BTW, IE does not have this problem.

I had no problem using a download wizard Java applet to download file to my computer from an SFTP site using Firefox. When I tried to do the same thing with Chrome, I was told to download the latest plugin. Once I did that, I receive the following message when I run the downlaod wizard:
The Java Wizard cannot run.
Please configure your browser to allow Java applets to access the filesystem.
I got the same message using Firefox and Chrome. However, I have no problem using IE to run the same download wizzard. Please help.

If the problem is with a site that is hosted using MOVEit DMZ by Ipswitch, please notify the site owner of the issue and ask them to apply the patch that is available on the support site to resolve the issue.
This is a better resolution than downgrading your version of Java that was updated due to security issues.

Java Applet to Access ASP Info in Proxy server Environment

I Have a Java Applet on a Web server outside and when I access the
applet in my corporate office which has a ProxyServer I get "UnKnownHost Exception".
I did used the "System.getProperties" methods giving the Proxy information and can pass through the Proxy Server.But that is not what I want,The Applet should get through
the Proxy server and get the response from the ASP without using the "System.getProperties".
IS THERE ANY WAY TO GET THE INFO. OF PROXY SERVER FROM THE CLIENT MACHINE ON WHICH THE APPLET RESIDES(PROXY HOSTNAME:, PROXY PORT)OR FROM THE BROWSER (IE/NETSCAPE)CAUSE THEY STORE THE PROXY INFO INTERNALLY--WHERE??? AND HOW DO I GET THAT?
Thanks in Advance

If you are using the Microsoft VM, and your applet is signed, you can use MS security to query the registry for the proxy server info.
For example:
com.ms.security.PolicyEngine.assertPermission(com.ms.security.PermissionID.REGISTRY);
com.ms.lang.RegKey key = new com.ms.lang.RegKey(com.ms.lang.RegKey.getRootKey(
com.ms.lang.RegKey.USER_ROOT,
"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",
com.ms.lang.RegKey.KEYOPEN_READ);
String proxyServer = key.getStringValue("ProxyServer");However, if your client is using the Java plugin, this will not work. The Java Plugin loads the proxy server information based on the browser preferences, but I haven't figured out how to retrieve that proxy information from the Plugin itself. Sometimes the javaplugin.proxy.auto.url system property is null, even if the browser (MSIE) is configured to use an auto-configuration script/url for the proxy server configuration. I can see in the Java Console that the plugin knows the auto-config url.
Even if javaplugin.proxy.auto.url is not null, I don't know how to call the javascript function at that URL from within the applet to get the proxy server host name and port.
Does anyone know how to get the proxy information from the plugin?

Allow applet internet access?

How do I allow an applet access to the internet?

If you sign it, you can do almost everything an application does,
including:
- Use URLConnection to any site
- Open Sockets to any server
If this is what you mean by Internet access, yes, it will work.
If you only need to access the server from where the applet originates,
you don't even have to sign it.

Java and internet access

Hello all,
I have been trying to upload a URL in my java application but I am always getting URL not reachable error message generating from a thrown exception. I know this may be easy but I am not able to find any solution for this is there a way to set java access to the internet other than modifying the plugin with the proper proxy setting ?

Try searching with Google and find an answer in seconds.
http://www.javaworld.com/javaworld/javatips/jw-javatip42.html
http://www.rgagnon.com/javadetails/java-0085.html

DataSocket & Java Applet

Is it possible to program a java applet to access information from instruments using DataSocket? Is there an API? There is an API announced on this website:
http://flagpole.mit.edu/applets/DataSocket/DS-HOWTO.html
It says it's a Beta but I cannot acces the link that redirect on NI's Website

Hi GGingras,
National Instruments used to provide and support a product known as DataSocket JavaBean. Unfortunately, it has been discontinued. So, DataSocket is not much of an option. There are a few other ways, however, that you can take to gain access to instruments.
One way would be to create a Remote Panel, which does not need a java applet. Here is a link to a tutorial on how to create one.
If you must use Java, you could export your LabVIEW VIs into a DLL using Application Builder, and then use the JNI (Java Native Interface) to talk to this DLL. Here is a link that may provide some more information on how to do this.
Lastly, you can communicate over TCP/IP. You can write a server using TCP/IP primitives and have the java applet connect to it and exchange data via TCP or UDP.
Hope this helps. Let me know if you need any more information. Happy Coding!
Jeremy L.
National Instruments
Jeremy L.
National Instruments

Applet Error:java.security.AccessControlException: access denied

Hi,
I just successful deploy an business component project to oralce 8.1.6 as an EJB Session bean, and
the test of application module is successful. In the same workspace, I create an new project with
an applet(which contains only an grid control)as a client of the business component. Everything works
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
Using JRE version 1.2.1
User home directory = D:\Documents and Settings\ERic
Proxy Configuration: no proxy
JAR cache enabled.
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.debugoutput read)'
Diagnostics: Silencing all diagnostic output (use -Djbo.debugoutput=console to see it)
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.logging.show.timing read)'
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.logging.show.function read)'
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.logging.show.level read)'
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.logging.show.linecount read)'
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.logging.trace.threshold read)'
Failed to query environment: 'access denied (java.util.PropertyPermission jbo.jdbc.driver.verbose read)'
java.lang.ExceptionInInitializerError: java.security.AccessControlException: access denied (java.util.PropertyPermission org.omg.CORBA.ORBClass read)
at java.security.AccessControlContext.checkPermission(Compiled Code)
at oracle.aurora.jndi.orb_dep.Orb.<clinit>(Orb.java:24)
at oracle.aurora.jndi.sess_iiop.sess_iiopURLContext.<clinit>(sess_iiopURLContext.java:9)
at javax.naming.spi.NamingManager.getURLObject(NamingManager.java:588)
at javax.naming.spi.NamingManager.getURLContext(NamingManager.java:537)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:274)
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

Java Applet Background Color Problem on Internet Explorer

Hi,
Please check out the following URL:
http://www.utopiainteractive.com/clients/AkonFinal/glossary.htm
The menu bar is writting in Java Applet. If you scroll down the page, and scroll back up, I see white background as I scroll back up. It happens only on Internet explorer. Neither Java Applet nor HTML Body bg color is white. I am kinda lost, and any help would really be appreciated.
Thank you and look forward to hearing from someone soon.
Sachin

Hi,
Well I used HtmlConver utility to generate applet html code, so I assume nothing is wrong with Object tag. Do you know what could cause this problem on Internet explorer? To be honest, I spent last couple of days, but I am just lost. It absolutely works fine on Netscape.
Thanks,
Sachin

Java Applet not displaying in Internet Explorer Options

For some reason my Internet Explorer browser is refusing to use Java. I've installed IE 8 and reinstalled the Java application, yet when I go to check the IE Options, the Java Applet does not even display as a selectable option. It works just fine in Firefox, which is what baffles me. As a direct result of this, my Java Desktop applications aren't working properly either. I have one that creates custom playing cards and I can change the backgrounds and view all my cards, but it will not save the information, an error of which I believe to be related to how Java isn't working with IE 8.
Any ideas? I've made sure that my virus protection is up to date. I'm at my wits end.

I'm having this exact or a very similar issue on Windows 7 Home Premium (64 bit) laptop with JRE 1.6.0_17
smccoy wrote:
Java doesn't work with my Internet Explorer, but it does work with Firefox. After deleting "temporary Internet Files" and restarting Internet Explorer 8.0.7600.16385 Java applets work on the browser.
>
Java does not appear in my Internet Options advanced tab.This is the main problem I have, Java is nowhere to be seen under Internet Options
>
And, in the Java control panel advanced default browser for Java, the IE is checked but greyed out. Same thing here
Only thing I can think of is that I've installed both the 32 bit and 64 bit JRE on this machine so I can have Java on both IE 32 bit an IE 64 bit.
Mght that come into play here?

Java applet coonectivity to ms access

Hi friend i'm new to sun forums. Java applet troubling me a lot while i try to coonect it with ms access. the code of the program is as follows:-
Ao.java
import java.sql.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
<applet code="Ao" width=250 height=200>
</applet>
public class Ao extends Applet implements ActionListener,ItemListener
String msg="";
Button view,delete,create,edit,reapp,exit;
TextField M_head;
int x,i,ans=0,flag;
public void init()
setLayout(new FlowLayout(FlowLayout.CENTER,50,3));
view = new Button("view");
delete = new Button("delete");
create = new Button("create");
edit = new Button("edit");
reapp = new Button("reapp");
exit= new Button("exit");
M_head = new TextField(15);
add(view);
add(delete);
add(create);
System.out.println("");
add(edit);
add(reapp);
add(exit);
System.out.println("");
add(M_head);
view.addActionListener(this);
delete.addActionListener(this);
create.addActionListener(this);
edit.addActionListener(this);
reapp.addActionListener(this);
exit.addActionListener(this);
M_head.addActionListener(this);
public void actionPerformed(ActionEvent ae)
String str=ae.getActionCommand();
if(str.equals("view"))
{msg ="1";}
if(str.equals("delete"))
{msg ="2";}
if(str.equals("create"))
{msg ="3";}
if(str.equals("edit"))
{msg ="4";}
if(str.equals("reapp"))
{msg ="5";}
if(str.equals("exit"))
{msg ="6";}
if(msg=="3")
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String filename = "D:/budget/mbdTest1.mdb";
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mbd)};DBQ=";
database+=filename.trim();
String head = M_head.getText();
String head1 = head.trim();
Connection con = DriverManager.getConnection(database ,"","");
Statement doo = con.createStatement();
String vi ="create table "+head1+" (Reapporder integer, Amount integer)";
doo.execute(vi);
catch(Exception err)
System.out.println("Error :"+err);
public void itemStateChanged(ItemEvent ie)
repaint();
public void paint(Graphics g)
g.drawString(msg,70,200); //No use
g.drawString("ANSWER=",6,200); // No use
I run it with a ao.txt file which contain the grant permission information:-
Ao.txt
grant {
permission java.lang.RuntimePermission
"accessClassInPackage.sun.jdbc.odbc";
permission java.util.PropertyPermission
"file.encoding", "read";
My database is in the same directory as in my .java file with the name mbdTest1.mdb ( A system dsn)
I run it with the following command:-
appletviewer -J-Djava.security.policy=Ao.txt Ao.java
applet run succesfully but when i enter some data in text box and click on create button it shows an Error java.sql.SQLException: data source name not found and no default driver specified.
help needed and thanks in advance

>
I'm unable to understand the archieve="accessdriver.jar">It is archive, archive (only one 'e'). These things need to be correct for any hope of working!
And while we are on the subject, the word is 'connect', not 'coonect'.
But anyway, what I meant by accessdriver.jar, is simply the Jar that contains the sun.jdbc.odbc.JdbcOdbcDriver ..
Oh, wait a second. I did not look at that classname closely, and did not realise it was a 'sun' class. It is more common to add a 3rd party DB driver class (AFAIU) than use a 'Sun proprietary API' class to access a DB.
>
As far as security file is concerned i will first try to run the applet so that it is able to create and query
data from my ms access database after than i can modify it.>You seem very confused about accessing the DB. Noting that your original code uses a hard coded (file based) path to the DB, I can tell you you are wasting time attempting to access it that way. That will never work when the applet is on the web, since the File path will point to a place on the end user's PC file system that does not have a DB installed! The applet will need to be redesigned.
I recommend you download and install a local server like tomcat, which can more accurately reflect a web environment. Then do all your applet testing via the local server.
1st, before you bother with the applet, you should organise how to access the DB (at least tot the point of doing a simple query) in a web page. Before going any further. This will ensure that the DB is set-up correctly and accessible to a sand-boxed applet.
Your comment about "..will first try to run the applet.. (before) ..modify it". If it is a security matter, it will need to be signed before you can even query the DB. If the applet can be sand-boxed (probably the case) then don't sign it at any time.

Internet Accesses Freeze Java Application

I have been programming a Java application, which is actually an instant text messaging system, that obviously makes internet accesses.
The thing is, I have got this JFrame, with JScrollPanes, JTextAreas for messaging, and whenever the user presses the magical 'send' button; till the reply comes, the window freezes; you know it turns into grey.
The way I send the messages is just to call the method that makes the connections and writes the data.
How should I modify my code that my application should not freeze while waiting response? Is there a way to decrease the priority of a method or something?
Thanks in advance..

To clarify a bit.
When you press the button an event is generated and put into the
event handling queue (which handles all awt/swing events such as redraws/resizes etc). The Queue is processed by the event processing
thread which pulls the button pressed event from the queue, finds
the associated eventHandlers and calls them. What this means is that
any code inside your event handler is run in the Event handling thread
which causes it to not be able to handle any more events until the
code in your handler is finished. Therefore all refreshes/button presses
/resizes etc. (everything to do with the GUI and some other bits too)
stop responding until your handler returns. Creating network connections
can take a fair bit of time which means your handler takes a fair amount
of time which means that the GUI locks up for a fair amount of time.
Right, that there is the reason your GUI stalls.
now, as pkwooster said, the way around this is to create a seperate
thread that handles your connections to the internet. At the simplest
level this thread can be created inside your "button pressed" event handler
. For more complex solutions you will need to find someway of notifying
a running thread that you have more work for it.
pkwooster also said that there is a lot of code in this forum on topics
related to the task you are attempting. You might wish to take his
advice and look for it.
matfud

How to open forms in separate Java Applet rather then Internet explorer

Aslam o Alikum (Hi)
I want to open my form in separate Java Applet rather then in Internet Explorer.
Please help
Best Regards,
Nasir Zeeshan.

Aslam o Alikum (Hi)
Let me explain my question
when i run my form from application server. it opens a web browser and display my form into it (form display in java applet embbeded in internet explorer). But what i want is that the web browser open the form in java applet as a separate window.
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Best Regards,
Nasir Zeeshan.

Java Applet problem in Internet Explorer 7 with Tab Key

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I am developing some web pages in which iam using a java applet. so far the intended user are supposed to be using Internet Explorer 7. the problem i am facing is that when i press the tab key within the applet. the control get transferred to new tab position in the web page outside the applet and i have to click back to the applet to get control again transferred to the applet.
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Hello all,
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Thank you.
Jorge

Internet Access rights in java API

hai
Iam trying a new project network administrator. It has to maintain the rights to access the net from the server. i.e Iam using a windows server. The Internet is connected to the server machine. There are 5 local machines which are connected to the server machine through LAN. The server machine IP is given as a gateway of the local machine. Then the internet is accessed by the local machine which connected in the LAN.
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Java is not forcibly the best choice to administer a Windows server.

Java applet (internet access)

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