Upgrading JWS applications installed in the system cache (enterprise)
Hello,
On request from several customers, I've looked into the best way to install a web start application for all users on a computer. These customers have users sharing computers, and the IT department doesn't want to be inconvenienced with installing applications on every user profile on every computer. The following articles provides a thorough explanation into how this can be done.
http://download.oracle.com/javase/1.5.0/docs/guide/javaws/developersguide/javaws.html
http://download.oracle.com/javase/1.5.0/docs/guide/deployment/deployment-guide/properties.html
By specifying the system deployment.config and deployment.properties files and performing the following installation command as an administrator, the application is made available for all current and new users with shared icons on the desktop and the start menu. This works actually very nicely.
javaws -system -import https://server/app.jnlp
However, I'm running into different problems when trying to upgrade the application. The application uses an online shortcut (but can be run in offline) and the update check is set to background.
If an ordinary (non-administrator) user start the application when a new version is available on the server, web start downloads the new version in the background, but into the user's personal cache! When restarting the application, the old shared version still starts. Web start does not download the new version, presumably because it found the new files in the personal cache.
Another approach I tested was to use offline icons and manually performing a new system installation/import. This downloads the new version into the shared system cache, but leaves all shortcuts invalid. Now the only solution to start the application is to run it from Java Control Panel. It's not even possible to recreate the shortcuts.
I'm wondering if I'm doing anything wrong or if there exists some best practices for enterprise installations that I'm not aware of. I'm suspecting that these problems are due to limitations or bugs with JWS, but I thought to check with the community before reporting it officially to Oracle.
The customers are using client computers with Windows flavours.
I've been testing on Windows 7 64 bit using the 32 bit JRE 1.6.0_u23.
Any suggestions would be really appreciated. If you are handling enterprise installations in altogether different manner, don't hesitate to respond.
Thanks.
Hello,
Were you able to solve your problem?
Actually, I'm planning to install the application for all users in a system and I'm on the investigation process.
In fact, these are my concerns:
- What is going to happen if a user with limited permissions tries to install a javaws application and it has been enable to be installed on system cache?
- Where the deployment files need to be located? In the web server (where jnlp is located)?
- Could system cache installation be performed automatically (when jnlp file is launched) or it would be performed by a system administrator?
If you could share some information on how you installed a javaws application for all users, I would really appreciate it.
Similar Messages
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Forcing a web browser to use the system cache
Greetings,
We are setting-up an "enterprise configuration" of JWS where we want JWS applications installed under the system folder (e.g. "<Windows Directory>Sun\Java\Deployment") rather the user "Documents and Settings" folder. The install script will run on thousands of desktops the same day. Since we do NOT want the JAR files downloaded to all these desktops at the same time, the script does not run "javaws -import" at the end - it simply copies the files deployment.properties and deployment.config under the sysem folder with the following properties set:
deployment.system.security.trusted.certs = C\:\\WINDOWS\\Sun\\Java\\Deployment\\keystore.jks
deployment.system.cachedir = C\:\\WINDOWS\\Sun\\Java\\Deployment\\cache\\
deployment.system.config = file:\\C:\\WINDOWS\\Sun\\Java\\Deployment\\deployment.properties
deployment.system.config.mandatory = true
The install script also copies a shortcut with the target "jawaws -system...."
This setup works fine and the shortcut does cause the application to be downloaded at the proper system location.
However, if the user starts the app from IE (e.g. http://xx.xx.jnlp), it ignores the system configuration and downloads the app to the local user folder.
Is there anyway to force the download to occur in the system folder ? What I find pretty odd is that even lanuched from IE, JWS does read the deployment.properties and deployment.config files from the system folder. I've put a typo and it there and JWS complained right away.
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1.5 How to globally set the System Cache location
FROM ANOTHER USER ON ANOTHER BOARD:
This one did not get answered completely.
************************* Question:
Hello,
I want to deploy JWS on a client PC with Microsoft XP OS. This client have multiple users. JWS put a file deployment.properties in the directory "documents and setting" for the current user.
How can I create a uniquely file deployment.properties for all users of this client (new and existing profiles) ?
Create a directory "documents and setting/all users/application data/sun/java/deployment/" with the file deployment.properties don't work.
Create a directory "documents and setting/default user/application data/sun/java/deployment/" with the file deployment.properties is working but is not good for the existing users. This is good uniquely for new users.
is there a solution ?
King regards,
funchung
************************* ANSWER:
For windows, the system config file is at:
{Windows Directory}\Sun\Java\Deployment\
The value of the {Windows Directory} is determined by using the Win32 API GetWindowsDirectory.
So for example, on XP, the system config file is:
c:\WINDOWS\Sun\Java\Deployment\deployment.properties
The settings in this system config file will be used by all users on the system.
***************************** HIS REPLY
I've tried this and it doesn't seem to work.
I've also tried createing a deployment.config file as per the http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/properties.html article and this doesn't work for me.
Has anyone done this successfully??
******************************** MY REPLY:
This is true.
I can get the system install to work if I add the parameter:
deployment.system.cachedir=C\:\\testcache
to the deployment.properties file found under:
C:\Documents and Settings\username\Application Data\Sun\Java\Deployment
but it will NOT work by adding it to the:
C:\WINDOWS\Sun\Java\Deployment
directory. It just creates a new default one in the user's folder.
What am I doing wrong?
If there is not a way to globally set the System Cache location, then this isn't much better than the user cache for being able to "install" the software once on the PC and let any user that signs in access that application.
We had high hopes for this, since this functionality was taken away from us once the java cache started being stored in the user's folders.
More details:
I just tried setting the mandatory=true setting and it tells me that it is not allowed to start because it can't find the
deployment.properties in the same folder (full path is displayed) but I know it is there, because it is the same folder. I even double checked the spelling.
Maybe there is a bug in the way it finds that properties file, or maybe I need to include something in that file that I didn't find in documentation?
All it has in it is the one line:
deployment.system.cachedir=C\:\\testcache
Can anybody help shed light on this?
It seems to be a bug that it can't find the deployment.properties file in the 'system' folder.
-ChrisI now found more on another thread:
http://forum.java.sun.com/thread.jspa?messageID=3500778�
You can close this one.
Sorry. -
How to configure the system cache
I found that JS2E has this enhancement:
System Cache: Java Web Start now contains both system and user caches. The system administrator can now pre-load applications and shared libraries into the system cache so that multiple users can share the same resources.
Now how exactly do I pre-load applications?Clearly the documentation of these two subjects needs to be addressed. I will try to get a compete "How to" document posted later in the month, meanwhile:
1.0)Enterprise Configuration Setup
To configure a system or enterprise configuration, you need to create a file called �deployment.config� and put it in the right place. Java Plug-in and Java Web Start will look for this file first in the directory it calls �deployment system home� , and if not found there, will look in lib directory of the JRE you are running Plug-in or Web Start from. The �deployment.system.home� directory is platform dependent. On unix, it is �/etc/.java/deployment�. On Windows it is <windows dir>/Sun/Java/Deployment.
If the file is in deployment.system.home, it will be used by all jres (only valid from 5.0 and up). If the file is not there, but in the lib directory of the jre, it will only be used when that Plugin-in or Web Start are launched from that jre.
The file contains is a java properties file, with only two possible properties in it: deployment.system.config, and deployment.system.config.mandatory. Here are two example deployment.config files:
deployment.system.config=http\://MyCompany.com/deployFiles/deployment.properties
deployment.system.config.mandatory=true
deployment.system.config=file\:/C\:/Program Files/java/jre1.5.0/lib/deployment.properties
deployment.system.config.mandatory=false
Note in both examples, the colon in a properties file must be escaped. This also applies to backslashes themselves in the examples below. This is a common problem.
The first example could be deployed by the admin in deployment.system.home, to require all jres used on this system to load the default and locked properties from the url before launching any Java Plug-in applet or Java Web Start application.
The second example could be deployed with the jre, with both deployment.config and deployment.properties
The deployment.properties file pointed to, can contain any of the properties that can be contained in the users deployment.property file (see list on http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/properties.html). They can also lock properties by listing the property key with �.locked� appended to it. Here is an example system deployment.properties file:
deployment.user.cachedir=D\:\\deployment\\cache
deployment.security.sandbox.awtwarning=false
deployment.security.askgrantdialog.notinca=false
deployment.security.askgrantdialog.notinca.locked
The first two properties are not locked. The use can change to use a different cache location, or turn back on the AWT Warning banner. The last property is locked. The user is not allowed to grant trust to applications who's jars are selfsigned (or signed with any root not in the rootCA certificate store, nor is he allowed to change this setting. The entry in the control panel for this property will be disabled, and any change made to the users deployment.properties file for this property will be ignored.
Now for system cache:
The system cache property is:"deployment.system.cache.dir". It can be set in either an enterprise or users deployment.properties file with:
deployment.user.cachedir=D\:\\deployment\\system\\cache
/Andy -
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