File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Applets and the fly likes Signed jar won't work... Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of REST with Spring (video course) this week in the Spring forum!
JavaRanch » Java Forums » Java » Applets
Bookmark "Signed jar won Watch "Signed jar won New topic

Signed jar won't work...

Tristan Van Poucke
Ranch Hand

Joined: Jun 30, 2008
Posts: 47
I signed the jar for my applet using jarsigner.
the applet is made for browsing your harddisk in order to upload some pictures so I needed a signed applet.
Anyway I signed the applet and still i get this error: access denied ( C:\Documents and Settings\josy\Mijn documenten read)
at Source)
at Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at Source)
at Source)
at com.arashpayan.filetree.FileTree.populateSubTree(
at com.arashpayan.filetree.FileTree.initRoot(
at com.arashpayan.filetree.FileTree.initComponents(
at com.arashpayan.filetree.FileTree.<init>(
at UploaderPack.Uploader.init(
at Source)
at Source)

Ulf Dittmer

Joined: Mar 22, 2005
Posts: 42959
I haven't done it myself, but I've heard people say running code as privileged code helps. See the last paragraph of "Signing an applet" in
[ July 01, 2008: Message edited by: Ulf Dittmer ]
Norm Radder
Ranch Hand

Joined: Aug 10, 2005
Posts: 691
I just ran an applet from a jar that I signed and it was able to read a file from my C: drive. It wasn't able to read the file before I signed it.

Here are the commands I used to sign the jar file:

@REM Sign AppletReader.jar to new jar file
@rem commandline used to create keystore:
@echo keytool -genkey -alias signApplet -keypass NormsKey -keystore NormsKS -storepass NormsStore
jarsigner -keystore NormsKS -signedjar sAppletReader.jar AppletReader.jar signApplet

Here's the code in the applet:
I agree. Here's the link:
subject: Signed jar won't work...
It's not a secret anymore!