Signed applet : problem signing jar files that are in build path

Hello,
I have a problem while trying to create an ftp applet.
I use org.apache.commons.net.ftp and i build path for commons-net-1.1.4.jar and then i build my classes.
When i create a jar file with my classes and after signing it, it works under eclipse but not on a web page.
I had signed commons-net-1.1.4.jar before to build the path in eclipse but commons-net-1.1.4.jar is not in my jar file.
What is the way to sign applet correctly even if some jar ressources are in eclipse build path.
Thank you

You were right!!!
I'm not sure what to write down in the formsweb.cfg (configuration file) , following the instructions on the on-line help of Developer Forms 10g , in step 9..
The step 9 says...
Because in this release the JACOB code is in an external Jar file and not incorporated into frmwebutil.jar, it needs to be downloaded. To do this, change the WebUtilArchive setting to read: webUtilArchive=/forms/webutil/frmwebutil.jar,/forms/webutil/jacob.jar
The doudt is pointed to the fact that the frmwebutil.jar isn't in the ORACLE_HOME\forms\webutil path but it is ORACLE_HOME\forms\java path.
Also , these paths referenced in webUtilArchive are physical paths in a Unix system or they are logical paths in a url?
Simon

Similar Messages

Signed applet problem: signer information does not match...

hi all,
i am actually making a upload component using applets that
would need to access the local file system for uploading
files.
I have created a signed applet(i have followed all the steps,
such as those of creating a jar, creating a key/value pair
using keytool and finally signed my jar file using
jarsigner). when i try to access this applet in a browser,
first the security certificate displays(which is fine),but
then when i click on "grant permission", it gives me a error
saying java.lang.SecurityException: signer information of
a(particular class of mine)does not match with that of other
classes in that......(rest is not visible)
i don't understand why this is happening...i have tried to
repeat all the steps..but still continues to give this error.
can anyone help plz...? i am stuck bceauz of this..as the
JFileChooser dialog box doesn't open up..from which i had to
browse and select files..
Thanks in advance
sd76

first the security certificate displays(which is fine),but then when i click on "grant
permission"Not sure what you're talking about, when I sing an applet and open it with IE and jre 1.5
I get a window titled "Warning - Security". It askes me if I trust the signed applet and
gives me the options yes, no and allways. But never got the "grant permission dialog".
Here is how I signed the applet and got it to read local file system:
http://forum.java.sun.com/thread.jsp?forum=63&thread=524815
second post

Signed Applet - Problem reading large local files

Hello,
I am using a signed applet (self-signed) to read files from a clients machine (local file system). Following is the code for buffered reading (the meat):
String thisLine, ret = "";
try{
     BufferedReader myInput = new BufferedReader(new FileReader(fn));
     while ((thisLine = myInput.readLine()) != null) {
     ret += thisLine + "\n";
     myInput.close();
catch (Exception e) {
     ret = "Cannot load, exception!";
When I read a file <= 512KB, it runs fine/as expected. Now, when I read a file, say for example 1024KB in size, I expect the application to take twice as much time (than 512KB file) and read the file, but instead the applet/browser hangs. As a matter of fact I am not able to read files > 512KB.
So, is there a limit on file size (from local file system) when reading from an applet, or is it to do with the way I am reading it?
Any help, suggestions or comments would be highly appreciated.
Thanks in advance.

Here is how I read a file from my applet:
     private String getData(String u) {
          URL url = null;
          InputStream in = null;
          String ret = null;
          try {
               // the following line wil read a file @ the same location as your class file
               // this way your applet does not need any special privileges
               // you could change the url to a file if so needed
               url = new URL(this.getCodeBase(), u);
               URLConnection conn = url.openConnection();
               // next line is optional and just tells the http server
               // a utf-8 response is accepted
               // some servers will return a bad request
               conn.setRequestProperty("Accept-Charset","utf-8");
               // first try to find out if the server has
               // provided us with the charset of the response
               // since this doesn't work with the msjvp (version 1.1.2)
               // it's commented out
               // instead provide a charEncoding yourselve
               String charEncoding = "UTF8";
//               int i = conn.getHeaderFields().size()-1;
//               while(i>-1){
//                    System.out.print(conn.getHeaderFieldKey(i));
//                    System.out.print("=");
//                    System.out.println(conn.getHeaderField(i));
//                    if(conn.getHeaderField(i).toLowerCase().indexOf("charset")!=-1){
//                         String charsetLine = conn.getHeaderField(i).toUpperCase();
//                         if(charsetLine.indexOf("SHIFT_JIS")!=-1){
//                              charEncoding = "Shift_JIS";
//                         if(charsetLine.indexOf("EUC-JP")!=-1){
//                              charEncoding = "EUC-JP";
//                    i--;
               // here is the value for char encoding (as a parameter in the <object html tag)
               if(this.getParameter("dataCharset")!=null){
                    charEncoding=this.getParameter("dataCharset");
               // wither you have a file or an url you read from an inputstream
               // here is how it's done
               // read the whole file and than turn it into a string
               in = conn.getInputStream();
               ByteArrayOutputStream bos = new ByteArrayOutputStream();
               int len;
               byte[] buf = new byte[1024];
               while ((len = in.read(buf)) > 0) {
                    bos.write(buf, 0, len);
               in.close();
               // you have the file as a byte array (bos.toByteArray()
               // here is how you turn it into a string
               ret = new String(bos.toByteArray(),charEncoding);
          } catch (Exception e) {
               e.printStackTrace(System.out);
          return ret;
     }

Signed Applet problems in Vista + JMF

Hi All,
I'm new to Java Applet programming. I wrote an application which works as a VoIP Client in a webpage (Using JMF). Its working very fine in allmost all Windows XP machines.
But not in Windows Vista machines. In Vista i'm getting the following error :
"No permission to capture from applet" - Since its a Signed applet. The application is digitally signed from a CA. Even though its not working in Vista (IE and Mozilla Firefox also).
I have went through the following link which says IE in Vista will run on protected mode, so Signed Applet will not have all the permission eventhough its signed for "AllPermission".
----- http://java.sun.com/javase/6/webnotes/install/system-configurations.html
And also I'm not able to create a customized jar file for JMF using JMF Customizer. (JMF Customizer is an application which creates a jar file with specified classes). While creating a jar file I'm getting particular class is not available. (In Windows XP, this class is compilled at run time).
Please let me know the following things,
a) Is there any security settings i have to make to run Signed Applet in Windows Vista ?
b) What is Java Policy file? I don't have any policy file - will it affect the application ?
c) Do I need to sign each applet (say i have 5 applets in single jar file) ?
d) In Vista how Mozilla Firefox are running (like IE7's restricted environment or XP compatiable mode) ?
Thanks in Advance,
Karthikeyan R

I have exatly the same problem but not with the class itself. I have the problem with an jar that my class calls.
I use jdk1.4.2. I think it's basicaly the same problem as "lfpgMW".
I'll also whould like an idea...
thanks

Dont ask why! How do I call an applet that is in a jar file that is...

Can someone tell me how I would call an applet that is inside of a jar file that is inside of a parent jar file?
example call to an Applet
<APPLET CODE="TimeApplet" ARCHIVE="time.jar" />what I want to do is something like
<APPLET CODE="TimeApplet" ARCHIVE="parent.time.jar" />
where parent is the top jar and time is the inner jar.any help or links to tutorials/articles would be most appreciated.
if you ask why I wont answer.

we are doing a signed applet and we only want the user to have to sign 1 time
and we have lots of applets to display so we dont want to have them sign for
each item.Sorry but that doesn't make much sense, niether does putting a jar file in a jar file.
Do you want the "do you trust" question only one time? If so than you only have
to sign all the jar files with the same key.
You can load a jar file from your applet but it seems that these jar files will run
in sanbox security no matter how you sign it:
http://forum.java.sun.com/thread.jspa?messageID=3582952
Asking why does make sense, I coud be asking how to climb a building without
telling my objective is to get on the 10th floor.
You would tell me how to climb the building an I'd probably do it and find out
later I could just as well have taken the elivator.

SAFARI 6.1.3 update to Reader 11.0.07 - cannot open pdf files that are presently on my computer. Previous version had no problem. Any ideas?

SAFARI 6.1.3 update to Reader 11.0.07 … cannot open pdf files that are presently on my computer. Previous version had no problem. Any ideas? (Here is the message: Adobe Reader could not open 'Digital_Holiday_Cookbook.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).

Thank you Pat!!!
Craig Ekonomos
[email address removed]

'can't be ejected because it contains files that are in use"? help ~!

hey guys
so recently after i tried to upload a few videos onto my 80 gb video ipod (it worked fine before), i got a message that said 'the ipod 'owner's ipod' cannot be ejected because it contains files that are in use by another application'. this message pops up when i try to safely eject my ipod after its all done uploading, and when i click the eject button, the 'please do not disconnect, updating ipod' sign on my itunes comes up as well as the message up there. the "don't disconnect' sign comes up on my ipod as well. and only after i close itunes does it go away. what is the'other application' and how can i fix it?? help help ! thanks !

Well, I don't have an answer for you but it does happen to me occasionally also. I've never been able to figure it out either. I think it's interesting that it happens on your Windows machine and on my Mac. For me, it sometimes doesn't even help to quit iTunes. I have, on occasion, just disconnecte and reset the iPod, which doesn't seem to have done it any harm.

Hyperlinks to XLS, DOC, and PDF files that are included in a .chm file work intermittently.

SUMMARY
Hyperlinks to XLS, DOC, and PDF files that are included in a
.chm file (and the Baggage Files) only work intermittently. The
only solution appears to be deleting the Temporary Internet Files.
PROBLEM
1. I place the XLS, DOC, or PDF file in the Windows
sub-directory that corresponds to the RoboHelp project sub-folder
where the topic in which I’ll place the hyperlink exists.
2. I open the help project in RoboHelp HTML.
3. I right-click on the project’s Baggage Files
sub-folder that corresponds to the Windows sub-directory in which I
placed the XLS, DOC, or PDF file (in step 1).
4. I import the XLS, DOC, or PDF file.
5. I open the topic in which I’m going to place the
hyperlink in the WYSIWYG editor.
6. I “drag and drop” the Baggage File into the
topic (in the WYSIWYG editor) to create a link to it.
7. I save the changes and then generate HTML (.chm) help.
8. I open the .chm file and click the hyperlink. The XLS,
DOC, or PDF file may or may not open.
9. When the hyperlink works correctly, for DOC and XLS files,
a “File Download – Security Warning” dialog box
appears asking, “Do you want to open or save this
file?”. The buttons that are available are
“Open”, “Save”, and “Cancel”.
These buttons work then as one would expect. (When the hyperlink
works correctly for a PDF file, it simply opens the PDF file in a
new window; there’s no prompt to save, open, or cancel.)
10. When a hyperlink does NOT work, for DOC, XLS, and PDF
files, no dialog box or other visual message is displayed. Instead,
the sound that is associated with the “Exclamation”
program event is played (the “Windows XP
Exclamation.wav” file is the WinXP default).
Other Notes:
- The hyperlinks ALWAYS work when I view a topic using the
“View Selected Item” function (Ctrl+W) in the RoboHelp
HTML project.
- Once a hyperlink stops working, it will not start working
again until I delete all the Temporary Internet Files.
- A hyperlink will stop working even if Internet Explorer
(iexplore.exe) is closed the entire time.
WORKAROUND
Through trial and error, I have discovered that if a
hyperlink stops working, I can get it to work again using the
following steps:
1. Leave the .chm file open.
2. Open Internet Explorer.
3. Click Tools>Internet Options….
4. From the “Internet Options” dialog box, select
the “General” tab.
5. Under the “Temporary Internet Files” section,
click the “Delete Files…” button.
6. From the “Delete Files” dialog box, select
“Delete all offline content” and then click
“OK”. The files are deleted and the “Delete
Files” dialog box closes.
7. Click “OK” to close the “Internet
Options” dialog box.
8. Without closing Internet Explorer and without re-starting
the .chm file, all the hyperlinks that didn’t work before
will now work.
GENERAL SYSTEM INFORMATION
- Windows XP Pro, SP2
- Internet Explorer 6.0.2900.2180
- RoboHelp X5, 5.0.2 Build 801
- HTML (.chm) help project files exist on my local machine
- HTML (.chm) help file is run from my local machine
- Project is under RoboSource version control
TEMPORARY INTERNET SETTINGS
- “Check for newer versions of stored pages” is
set to “Automatically”
- “Current location” for the Temporary Internet
files folder is set to “C:\Documents and Settings\My
Username\Local Settings\Temporary Internet Files\”
- “Amount of disk space to use” is set to
“594” MB
“View Files…”
- An XLS or DOC file will be listed here if I click its
hyperlink and then click either “Open” or
“Save” from the “File Download – Security
Warning” dialog box.
- A file will appear here even if I click “Save”
and then click “Cancel” from the subsequent “Save
As” dialog box.
- If I click “Cancel” from the “File
Download – Security Warning” dialog box, the file does
not appear in the Temporary Internet Files folder.
- When a file does appear in the Temporary Internet Files
folder, its Internet Address is displayed similar to the following:
“ms-its:C:\PrimaryProjectFolder\ProjectName.chm::/SubFolderName/FileName.xls”
“View Objects…”
Here’s a list of all the program files that appear:
- “Microsoft Office Template and Media Control”
(Last Accessed 12/13/06) (Version 12,0,6024,0)
- “Shockwave ActiveX Control” (Last Accessed
12/14/06) (Version 10,1,4,20)
- “Shockwave Flash Object” (Last Accessed
12/18/06) (Version 9,0,28,0)
- “Windows Genuine Advantage Validation Tool”
(Last Accessed 12/14/06) (Version 1,5,722,0)
- “WUWebControl Class” (Last Accessed 12/13/06)
(Version 5,8,0,2469)
Today is 12/18/06 so the only program file that is listed as
having been “Last Accessed” today is the
“Shockwave Flash Object”.
REQUEST FOR HELP
I really want to include certain PDF, DOC, and XLS files in
their native format in a .chm file. However, I need a better
solution to my problem than the one I discovered. What I really
want is to avoid the entire problem altogether.
Have anyone seen this before or have any suggestions?

You wont be able to do that. The embedded objects would appear as images only.

HT1351 Whether or not I sync items on iTunes to my ipod, I cannot eject the ipod because a message keeps coming up and saying that my ipod cannot be ejected because it contains files that are being used by another application. How do I fix this?

I just got an ipod classic 7th generation a couple days ago and I'm having a heck of a time with it. My latest problem is that with media on iTunes, I cannot eject the ipod because it says that it cannot be ejected because it contains files that are being used by another application. What application is this, and what do I do about it?

Hi newipoduser,
Here are some possible solutions:
Do you use musicmatch jukebox on your computer? If you do, you have to go into task manager on windows and end process mim.exe. It interferes with disconnecting ext devices
Empty your "trash/recycle bin."
If that doesn't work, try quitting all your programs, especially music-type programs, basically things that look for mp3's etc.
if that doesn't work, "log off" then "log on" and that should refresh/purge your OS system.
Finally, you can restart your computer.
Hope one of these helps!
Cheers,
GB

Ipod cannot be updated because it contains files that are in use by an

My fifth gen/30 ipod is a mess since I installed itunes 7.I can't update or eject the little guy .The message reads"cannot be updated because it contains files that are in use by another application"or "cannot be ejected because it contains files that are in use by another application" Any help would be very appreciated!
Thanks!
dell Windows XP 30 gb video

I had the same problem. I had to uninstall 7.0 and install 6.0 and was able to restore OK. I'm back using 6.0, but just got a second generation ipod nano, so I have to go to 7.0 or greater. My only words of wisdom are DO NOT SET ANY LOCKS until you are really sure you want to. Also with 7.0 I could not eject my ipod unless I went to the "safe to eject ipod" command. Apple has some problems to work out and I hope soon. Clumsy as best...............
Dell Demension 8100 Desk Top Windows XP

Cannot update ipod due to files that are in use by another application

Uploaded iTunes version 7 onto my PC on Friday. Ever since my fifth generation video (30GB) ipod cannot be either updated with version 1.2 software, syncronised or restored due to the error message "The ipod cannot be updated becuase it contains files that are in use by another application".
Not sure the issue is related to the itunes upgrade but it is a strange coincidence.
Also having a problem becuase my pc runs outlook 2002 which is not compatible with itunes 7 and my calender cannot be syncronised. Don't know whether the two issues are related.

Kudos to Randy. Thanks a lot; this worked for me. I simply opened itunes (and minimized it) with my ipod connected, opened "My Computer," right-clicked "IPOD" and ejected it. As soon as the icon in My Computer showed that it was ejected I quickly maximized itunes, clicked IPOD, and clicked the update button. Wah lah! iPod updated. Hope that helps the rest of you out there with this problem! Thanks again!
Windows XP

The Ipod cannot be ejected because it contains files that are in use by ano

When I want to eject my Ipod i get this message:
The Ipod cannot be ejected because it contains files that are in use by another application.
After I had put some songs on the ipod, i got that message. I thought maybe the new songs were the problem but de computer still doesn't want to eject my Ipod and there are no programes in use other than itunes.
Does anybody know what to do???!!!
greetings Mandarijn

hi Mandarijn!
The Ipod cannot be ejected because it contains files that are in use by another application.
by any chance, do you have McAfee ActiveScan security software on that PC? i've seen that implicated a few times with this message.
if you do have McAfee, as an experiment try switching that off prior to doing a sync. do you still get the message then?
if the McAfee thing doesn't-help/isn't-relevant, let's try using the following techniques to see if we can identify if some other program is causing the message. (the article is actually about installation errors, but the techniques are relevant to this sort of investigation.)
Close Applications Running in the Background
love, b

The ipod cannot be ejected because it contains files that are in use by another application

I am using my crusty but trusty 5G iPod with my new rMPB, and things have been working as expected for the month or so that I've had the new laptop. But "recently," (past few days?), when I go to eject from iTunes (current - 11.1.5), I get the error message, "The iPod cannot be ejected because it contains files that are in use by another application." The iPod is then ejected but the "Do not disconnect" message remains on the iPod screen. I can continue using the iPod as normal after all this.
If I eject the iPod from the Finder, I get no error message but the iPod screen still remains at "Do not disconnect."
I tried plugging it into my Windows 7 PC (did not reformat of course!) and then ejected it, and the iPod screen returned to its proper state after a proper Windows disconnect.
I have of course restarted my Mac and reset the iPod (Up + Center buttons held for ~5 sec) but no change. I don't remember changing the OS that would cause this - any suggestions as to the problem here?

Hello, cgtyoder.
Thank you for visiting Apple Support Communities.
Try resetting the iPod and power cycling your Mac to see if this message disappears. If the issue persists you may need to restore the device to factory settings. The article below will walk you through both these steps.
How to reset iPod
http://support.apple.com/kb/ht1320
Cheers,
Jason H.

How do I erase the "other" files that are occupying my computer

I already deleted pics, music, etc and I am ready to continue to delete unnecessary files. How should I erase the "other" files that are in my computer. Please, advice. Thanks

For information about the Other category in the Storage display, see this support article. If the Storage display seems to be inaccurate, try rebuilding the Spotlight index.
Empty the Trash if you haven't already done so. If you use iPhoto, empty its internal Trash first:
iPhoto ▹ Empty Trash
Do the same in other applications, such as Aperture, that have an internal Trash feature. Then restart the computer. That will temporarily free up some space.
According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation—not the mythical 10%, 15%, or any other percentage. You also need enough space left over to allow for growth of the data. There is little or no performance advantage to having more available space than the minimum Apple recommends. Available storage space that you'll never use is wasted space.
See this support article for some simple ways to free up storage space.
You can more effectively use a tool such as OmniDiskSweeper (ODS) or GrandPerspective (GP) to explore the volume and find out what's taking up the space. You can also delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one. Note that ODS only works with OS X 10.8 or later. If you're running an older OS version, use GP.
Deleting files inside an iPhoto or Aperture library will corrupt the library. Any changes to a photo library must be made from within the application that created it. The same goes for Mail files.
Proceed further only if the problem isn't solved by the above steps.
ODS or GP can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
Back up all data now.
If you have more than one user account, make sure you're logged in as an administrator. The administrator account is the one that was created automatically when you first set up the computer.
Install the app you downloaded in the Applications folder as usual. Quit it if it's running.
Triple-click anywhere in the corresponding line of text below on this page to select it, then copy the selected text to the Clipboard by pressing the key combination command-C:
sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper
sudo /Applications/GrandPerspective.app/Contents/MacOS/GrandPerspective
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing command-V. You'll be prompted for your login password, which won't be displayed when you type it. Type carefully and then press return. You may get a one-time warning to be careful. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator. Ignore any other messages that appear in the Terminal window.
The application window will open, eventually showing all files in all folders, sorted by size. It may take a few minutes for the app to finish scanning.
I don't recommend that you make a habit of doing this. Don't delete anything as root. If something needs to be deleted, make sure you know what it is and how it got there, and then delete it by other, safer, means. When in doubt, leave it alone or ask for guidance.
When you're done with the app, quit it and also quit Terminal.

I cannot ope PDF files that are within a web link. Neither Safari nor Firefox will work. If I receive a PDF file as an email attachment, I can open it with either Adobe or Preview. I'm running 10.6.8 on an iMac.

I'm going to re-state this. Several weeks ago, I had installed Security Update 2012-004 on my iMac. I'm running Snow Leopard 10.6.8. Immediately afterwards, my Mail 4.6 was GONE. Mail 4.2 was there, but the system would not open it. The Apple Support Communites quickly solved my problem. The problem lay within the Update. Now, I cannot open PDF files that are contained within a website, i.e. a lunch menu that is on a restaurant website. This happens on both Safari and Firefox. If someone sends me an email with an attached PDF file, I can open the file with either Adobe or Preview. This is happening only on my iMac. My MacBook Pro, also running Snow Leopard 10.6.8 has not experienced either the first or second problem. Thanks for any help you can offer.

fomamac2guy wrote:
Now, I cannot open PDF files that are contained within a website, i.e. a lunch menu that is on a restaurant website.
Does this help with Firefox?

Signed applet : problem signing jar files that are in build path

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