What EXACTLY is happening when a signed applet loads in a page?

I'd like to know what happens when a signed applet is loaded in a page with the Java Plug-in. What methods are called, in which order, what happens when the user denies the applet, etc.
Any links to resources are also welcome.
Thanks!!

Hi there,
Please go thru the following links. I think they are self explanatory and does not need more elaboraion. These links expalin how the Signed Applet is loaded and how does the Class Loader and Code Verifier make it possible for the applet to work within it's security restriction.
Here are the links:
1.http://java.sun.com/j2se/1.4.2/docs/guide/plugin/developer_guide/rsa_how.html
2. http://ntrg.cs.tcd.ie/undergrad/4ba2.96/group2/applets.html
For more information about policy files you can check the following link:
http://www.interex.org/pubcontent/enterprise/jan01/14chew.html

Similar Messages

What could be happening when I launch FireFox and my home page opens but suddenly I'm taken to some other web page?

Almost everytime I launch FireFox, first my home page will open but less than a minute later, I'm directed to a web page I've never heard of before.
== URL of affected sites ==
http://www.earthlink.net

http://www.ehow.com/how_5545010_uninstall-babylon.html

What exactly is happening in the code mentioned?????

Hi all,
I want to know the working of the below code:
The below code is the WHEN_BUTTON_PRESSED Trigger for the ENTER_QUERY (Push Button):
DECLARE
IT_ID1 ITEM;
IT_ID2 ITEM;
IT_ID3 ITEM;
BEGIN
IT_ID1 := FIND_ITEM('BUTTON.EN_QUERY');
IT_ID2 := FIND_ITEM('BUTTON.CA_QUERY');
IT_ID3 := FIND_ITEM('BUTTON.EX_QUERY');
SET_ITEM_PROPERTY(IT_ID3,ENABLED,PROPERTY_TRUE);
if :system.mode<>'ENTER-QUERY' THEN
   set_item_property (it_id1,label,'CANCEL QUERY');
   GO_BLOCK(GET_APPLICATION_PROPERTY(CURRENT_FORM_NAME));
   CLEAR_BLOCK(NO_VALIDATE);
   ENTER_QUERY;
set_item_property (it_id1,label,'ENTER QUERY');
ELSE
EXIT_FORM;
END IF;
END;
Can You please tell me what exactly is happening in the above code?
I want to know the working of it. Help me plz.
Thank You.
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
Oracle Forms 6i.

what does if :system.mode<>'ENTER-QUERY' THEN mean??
SYSTEM.MODE indicates whether the form is in Normal, Enter Query, or Fetch Processing mode. The value is always a character string.
and what does GO_BLOCK(GET_APPLICATION_PROPERTY(CURRENT_FORM_NAME)); do?
GET_APPLICATION_PROPERTY Returns information about the current Oracle Forms application. CURRENT_FORM_NAME Returns the name of the current form as indicated by the form module Name property.
GO_BLOCK navigates to an indicated block. If the target block is non-enterable, an error occurs.
As per the code, After i press the button, the label ENTER QUERY should become CANCEL QUERY, (that is when system is in ENTER_QUERY mode) .
So when in the system is in ENTER_QUERY mode, it must display CANCEL QUERY, Right??
in your post, you also said..
The below code is the WHEN_BUTTON_PRESSED Trigger for the ENTER_QUERY (Push Button):
We see 3 button in your code. How can we know which one is ENTER_QUERY button. Your code says...
ENTER_QUERY;
set_item_property (it_id1,label,'ENTER QUERY');
So, it says.. BUTTON.EN_QUERY label will be ENTER QUERY
Then why the code, (if :system.mode<>'ENTER-QUERY' THEN set_item_property (it_id1,label,'CANCEL QUERY');) ?? which says if system mode is not equal to ENTER_QUERY,
then it tells to display CANCEL QUERY.
it says.. BUTTON.EN_QUERY label will be CANCEL QUERY

What exactly are bezels when referring to the ipad?

What exactly are bezels when referring to the ipad?

In what context are you seeing this term? The only use of "bezel" in relation to the iPad I can think of is the frame, aka "bezel" that surrounds the screen.
Regars.

What is actually happenning when we are importing a class of some other pac

Sirs,
I have a doubt which is very basic to java,
I want to import a class say "HashMap" to my class.
If i put import "java.util.HashMap" or "import java.util.*;"
Which will be better ?
If i put "import java.util.*; " will it affect the performance?
What is actually happenning when we are importing a class of some other package to our class
Your help solicited,
Sudheesh K S

Many of your questions of this nature can be quickly answered by a search of prior posts to the forums, like this:
http://forum.java.sun.com/thread.jspa?forumID=54&threadID=631979
And why do you tend to post boldened text? It's harder to read.

TS3694 what does 3014 mean when im trying to load latest update to i phone 4?

what does 3014 mean when im trying to load latest update to i phone 4?

iTunes: Specific update-and-restore error messages and advanced troubleshooting - http://support.apple.com/kb/TS3694 - The alert message in iTunes may include one of the following numbers (or the message may include a number not listed here):
1, -1, 2, 4, 6, 9, 13, 14, 20, 21, 23, 26, 28, 29, 34, 35, 37, 40, -48, -50, 1000, 1002, 1004, 1011, 1013, 1014, 1015, 1479, 1600, 1601, 1602, 1603, 1604, 1611, 1631, 1638, 1639, 2001, 2009, 3002, 3004, 3013, 3014, 3015, 3194, 3200, 9006, 9807, -9808, 9844, 4026xxxxx.

What exactly happens when i sign out?

do everything i have checked on icloud, when i create new vcard, note, cal-date, do those new creations get deleted if i sign out of icloud? what if there's a icloud crash, are all those new files lost?
or will time machine back ALL files up?

When you sign out, you disconnect your Mac from your iCloud data. You will be given an option to keep some data locally on your Mac (like contacts and calendars), but not all. The data remains in iCloud and will reappear on your Mac when you sign back in. Whether or not you can restore all your data from Time Machine is not clear; and doing so is difficult. The best thing to do is to create local backups of your data from time to time, which are then backed up by Time Machine.
You can back up your calendar(s) by selecting them and going to File>Export>Export. You can back up your contacts by going to Fine>Export>Export vCard (or Contacts Archive if you have lots of groups).
To create local copies of your notes, you have to sign out of your iCloud account in System Preferences, choosing Delete at all of the prompts (your data will still be in iCloud), then in Notes go to File>New Folder (name it something like "Notes Backup"). This will create the folder under On My Mac. Then sign back into your account in System Preferences to sync back all your iCloud data (after a brief delay as it downloads). You can then option-drag and drop your iCloud notes to your On My Mac backup folder. These notes in the On My Mac folder will be stored on your Mac (not in iCloud) and will be backed up by Time Machine.

What happen with my Signed applet

Hi all
I have just made a Signed applet
Step by step:
1. I made applet source code
2. I made a HTML file
3. I build applet source code
*javac FirstApplet.java*
*jar cf FirstApplet.jar *.class*
*keytool -genkey -keystore mykeystore -alias launcheralias*
*keytool -selfcert -keystore mykeystore -alias launcheralias*
*jarsigner -keystore mykeystore FirstApplet.jar launcheralias*
*del *.class*After that i run HTML the first.
it appears to me a message
*WARING SECURITY*
*The application's digital signature can not vertifed*
*Do you want to run the application ?*I check option *"Always trust content from this pulisher"* --> My program still runs well
I dont understand why when i run my applet the firt it appears to me that message.
What is wrong and how to solve ?
Please help me.
Thanks in advance.
Diego

Actually the above same prob is faced by me in my application.
The application's digital signature can not vertifed
Due to this pop up, our customer thinks our certi is nt valid & its nt possible to make them understand abt it since they feel insecure.
This warning appears due to JVM running along with application.
If we go to
Control Panel->Java->Security->Certificates and choose secure sites in Certificate type.
Here link of my web application should appear, in order to remove this warning.
So is there any way so that link of my web application shpuld be directly installed on the above mentioned location on Client's PC??? or any other alternative
Please Helppp...

What exactly is happening/failing when "GPIB Interfaces sequentially verified" FAILS?

I have an AT-GPIB/TNT+ card installed in my computer. It fails the "GPIB Interfaces sequentially verified" portion of the Wizard program. I am able to communicate (IBIC) with my instruments, so it appears that all is working well. I do have older non-compliant GPIB interfaces so the "Scan for Instruments" does not work. What exactly is failing in the Wizard and what can I do? I have windows 95.0.

Janet,
Typically when the installations fails the sequential verification, it is due to either a resource conflict or a device being connected to the board during the test. You can click on the failed interface to get a brief explination of what may have caused the error.
There are instances reported using the AT-GPIB/TNT+ board and Win 98 inwhich this error was reported even though there were no problems with the board's setup. Since you are communicating properly with the board through IBIC your board is functioning properly, and I would not be concerned with the error message.
As for your instrument, this is likely due to your instruments non-compliance to 488.2 standards. Whenever the Measurement & Automation Explorer does a "Scan for Instruments", it sends out the stri
ng "*idn?" (which is an IEEE 488.2 identification query string) to all of the devices on the bus. If you have older, non-IEEE 488.2 compliant instruments on your GPIB, then they will not recognize this string as a valid command. This will cause "Scan for Instruments" to fail.
Best Regards,
Chris D

Change language on the security warning popup when using signed applets

Hi
Today when we use a signed applet the user get a security warning popup box where the langauge is English.
Is it possible to change the language to other that English and if possible how can this be done ?
Thanks in Advance,
Henrik Rasmussen
Denmark

The Microsoft one is especially annoying because they should know better than to submit from secure to insecure.
Let's say you are currently logged in to a Microsoft account and you click Sign in on MSDN. The site redirects to login.live.com, which recognizes that you are logged in, and generates a page with a hidden form and submits it back to MSDN using a script. This is where the problem is, because the hidden form action URL is not secure, yet it is on a secure page. (See Screen shots)
The workaround (hack, whatever) is to modify the form to a secure address before it is submitted. How can you do that? Since it is impractical to do by hand, you can use an add-on.
In an earlier thread, user thx1200 posted a link to a userscript that fixes this issue on login.live.com. The userscripts''.''org site has seemingly died, but there is a copy on a mirror of that site.
* Earlier thread (long): [https://support.mozilla.org/questions/964250 How do disable this Warning? Although this page is encrypted, the information you have entered is to be sent over an unencrypted connection]
* You need Greasemonkey to run user scripts: https://addons.mozilla.org/firefox/addon/greasemonkey/
* User script install page: [http://userscripts-mirror.org/scripts/show/173384.html Fix security warning for Microsoft Live login]

What exactly is "All" when handling webapp items in a collection?

In reference to this documentation - http://docs.businesscatalyst.com/dev-assets/reference#!/how-tos/liquid/listing-and-filtering.html and also when using collections, Does All mean All or does it only list 500 items at a time? Also, what is the difference in performance speed when say looping through a collection vs using categories to display specific items. I have had webapps that contained around 70,000 items before, so I was curious.

Hey mate,
First thing is with collections etc I do not think pagination, fetching etc has been finished 100%, not much documentation either and on objects I have seen info on that change.
I have a forum post about pagination and things like collections and the use cases (that or I emailed the BC guys)
Basically covering like what I know is going through your head... You have a collection, so how do you iterate through the other pages, what happens when you want to show just 5 and no data etc.
BC limit is for performance and server reasons of course which is fine, but as you indicated you may want to display more so making another request to fetch the next chunk with API. You can do that with module_data but one of the issues I have raised and I can see happening is that if some of this core stuff is not covered on the core modules - All the work to update BC modules would end up being a waste of time, because if things like this crop up you would just end up using module_data for nearly everything as the API's role out. Which of course is OTT.

IIS, Javascript, Signed Applet and ASP Blank Page Problem

Hi,
I'm having a problem using a Signed Applet in a site that runs in a IIS (Windows Server 2003).
My aspx web page uses the applet to read my smart card and get information from it.
This applet uses an auxiliar dll (stored in a second Signed Jar file) in order to read the information from my smart card.
The way the solution is design:
1) Aspx page is asked from server
2) Internet Explorer recieve the page and asks the server for it content (images, applet, javascripts, etc)
3) After this the JVM runs (console opens)
4) After the Aspx page render fully a javascript register onload fires and call an applet method
5) Applet receive the call and run the logic of the method:
     - reads the smart card;
     - calls Javascript function in order to fill aspx fields with information from smart card
     - calls Javascript function the simulates a click in a botton of aspx page (in order to call server side part sending data readed from smart card to server)
5) The server makes some logic with the information receive and responds to client registering in aspx page a call to another Javascrit function
6) The client received the asnwer from server and runs the Javascript function registered on step 5)
     This Javascript calls another method from applet and runs the following logic:
     - reads more information from smart card;
     - call javascript function in order to fill more fields of aspx page with the information readed
     - calls Javascript function the simulates a click in a botton of aspx page (in order to call server side part sending data readed from smart card to server)
7) The server makes some logic and call another pages with no Applets
8) Client asks for a second page with the same applet and we start with another logic express on steps 1);2);3),4);5) and then 7).
This is all ok, until sometimes the server stop responding correcly for requests regarding this two pages with the Applet.
When this happens the server just responds with a blank page.
     - with fiddler I can seer the request for the aspx page (that uses the applet)
     - but server responds with a blank html page
The JVM doesn't fire.
The IIS log don't show errors.
The eventviewer doesn't show errors.
The problem is solved with an IIS reset or a Application Pool reset.
After a while the problem returns.
This problem occours for other user in another machine, the server just stops responding correcly to request regarding pages with applets, the other pages still continue to work.
If we disable Java Control Panel->Advanced->Java Plug-in->Enable the next-generation Java Plug-in the problem seend to stop, but we can't force all clients to disable this option right?
Or there is a way to force the Applet to run with this option disabled?
As anyone experience similar problem?
Regards,
OF

This is all ok, until sometimes the server stop responding correcly for requests regarding this two pages with the Applet.
When this happens the server just responds with a blank page.
- with fiddler I can seer the request for the aspx page (that uses the applet)
- but server responds with a blank html pageWell, if http requests look identical in case of success and failure (pay attention to cookies, etc) then it has to be something on the server side.
It could be that server gets into this wrong state because of previous requests made by applet but it is hard to tell.
I am not clear how old/new plugin can make a difference unless your applets run in the legacy mode (i.e. you are actually trying to reuse SAME instance of the applet when
it is loaded next time).
I'd start with
1) carefully comparing good/bad sessions
2) checking whether server will serve correct response to another client when it serves "bad" page for current client
3) add debug statements to aspx - it is scripted page, may be some condition is not met and then it returns blank?
4) record all http requests in one session until you get to "error" state and then use any http server testing tool to "replay" this set of requests.
You should be able to get server into the same state without use of applet. Then you can try to tweak set of requests to see what makes a difference.

How do I determine what URL to use when launching to display a RH10 .htm page?

Hello,
We are implementing RoboHelp 10 for our online documentation and are sourcing it from Framemaker 11. I am trying to determine exactly what URL information the developers need to build for the launch to the specific IBM System i screen. Is anyone launching RoboHelp from a backend ERP system? If so, how did you determine what level to use when building the URL for that page? Thanks for any assistance you can provide.

It depends on whether you just want to open the help at the default topic or open context sensitive topics.
Both methods are described in Calling Help on my site and there is more good information at http://www.wvanweelden.eu
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

Signed applets load slower than javascript

I have a signed applet and i had problems with certifications but i solved them.
Now i have a new problem with the chat , it�s when the page is load, javascript tries to get some variables from the applet but it has�n load jet and javascript stops.
Is 1.5 slower than 1.4??
How can i solve it'??

In javascript you can use try and catch. When caught use setTimeout
var varOfTheApplet = null;
function callPublicMethodOfTheApplet(){
try{
        varOfTheApplet = document.getElementById("idOfMyApplet").publicMethod();
   }catch(e){
        setTimeout("callPublicMethodOfTheApplet();",500);
}

A weird sound happens when I sign on to Facebook

I have a 2009 Macbook Pro and am using FF 3.6.13.
Everytime I sign on/off to Facebook or Google a weird lazer-gun sound happens.
This doesn't happen with any of the other major browsers I have.
It only happens with Facebook and any Google account.
With Google as I sign off the username/password fields automatically fill with "MyUsername" and the dots (who knows what password is being entered!).
I've tried deleting all cookies and restarting FF and it still does this.

To clarify, when I hear the lazer-gun sound it automatically fills in the user/pass fields on sign off with the image I uploaded. On sign on it just makes the sound but signs me on to my account as normal.
With Facebook it just makes the lazer-gun sound but does not do what the Google example I uploaded shows.
The lazer-gun sound is like a lazer-tag gun sound.
I suspect there is some bug in my browswer, but it only affects Facebook and any Google account that I have in the manner I describe.
How would I get rid of these?

What EXACTLY is happening when a signed applet loads in a page?

Similar Messages

Maybe you are looking for