J2EE and related J2SE/JRE versions

I understand the difference between J2EE and J2SE/SDK/JDK, and JRE. However, I'm having trouble identifying what version of SDK each of the J2EE versions uses. Maybe they match up.
For example, if I have an old project someone says was built with J2EE 1.3 SDK, does that use J2SE/JRE 1.3? Does Java EE 5 use Java 1.5? 1.6? 1.4? (For example, if I'm setting Eclipse Compiler Compliance Level for a J2EE 1.3 project, what should it be?)

is there a way for me to know what Java version that would have been or could have been compiled against?No.
Edit: Slight clarification - the class files in the application contain a magic number that corresponds with the compiler target - so for any given class file you can determine what JRE was targeted at compile time. This can be different from the compiler version. Different classes in the same application may have been targeted to different JRE versions.
Are there any versions of Java that it could not be compiled against?No.
what version of Java does the Application Server on which this will be deployed support.The Application Server will be running on a JRE corresponding to a particular Java release. That JRE will support all versions of Java prior to the release. Code compiled on subsequent versions of Java can, if suitably written, be targeted to run on that version of the JRE and (depending on versions) may not need specific targeting to do so. Whether they in fact work or not depends entirely on what library calls they make.
What's the business requirement that drives this request?
Edited by: dcminter on 03-Mar-2010 18:54

Similar Messages

J2SE/JRE Version(s) on Clients

Hi All!
Can someone offer some guidance on what version(s) of J2SE/JRE we should have installed on our clients (PCs)? We have standardized on 1.4.2_13 and are moving to 1.4.2_15 for Vista support, but we've run into several situations where SAP is asking for us to also install 1.5 or 1.6, and we also have other vendors asking for various versons of J2SE/JRE. In the past we tried to use the same version as the version on the server, but we're finding this is hard to do.
Also, if you're running multiple versions, how do you manage cases where 2 browser apps want to use different versions since (at least with IE) it appears only one can be the default.
Thanks!
Jeff

Jeff,
Unfortunately, as you have realised, you're stuffed when it comes to IE and Java. Only one can be used.
We have to produce a certified list of apps that can be run against a common JRE. It looks like a neat matrix sheet and normally works around the lowest common denominator of JRE.
Unless SAP don't support you on older JRE versions, don't be bullied by them into upgrading.
Unless there is a very compelling reason (e.g. you need a patch that requires an upgrade) then I wouldn't change it, for simplicities sake.
I found this link to be of use though:
Re: Assigning Frieght conditions by Vendor
Best Regards,
Darryl

JRE versions to test

1. There are so many JRE versions from Sun out there. I wonder which versions do people typically test their java programs/applets with.
2. what is the relation between JRE version (1.4.2_07) and the default virtual machine version(1.4.2_07-b05)?
3. 1.4.2_07-b05 ... can someone explain the 5 fields of this version number and when each of them changes?
thanks.

Reply to (1) - Whatever Java virtual machine(s) you
want to guarantee it'll run with. Typically a few
versions.The reason I ask is my applet works on a machine with JRE1.4.2_08 but not on a machine with 1.4.2_04. For another problem, reading cookie through liveconnect did not work very well with 1.4.1. I also know that in 1.4.2_03, javascript cannot called applet methods to do privileged work even if the applet is signed - what I dont know is if this is a change between 1.4.1 and 1.4.2 series or introduced in 1.4.2_03.
Things like these make me wonder if I have to test my applet with every JRE version out there. But since that is lot ot work, I am looking for recommedations as to what versions the QA can use for testing.

Install j2se plugin version 1.6.0_07 on your client and NPX_PLUGIN_PATH environment variable set before starting Netscape.

Hi experts m new to apps please help.. I have installed successfully Oracle Apps R12 on OEL - 5 All the services runining fine. but when i am opening forms its giving error "install missing plugins" i installed jre-6u7-linux-i586-rpm.bin and Mozilla Firefox 3.0.18 [root@ust ~]# cd firefox/plugins/ [root@ust plugins]# ln -s /usr/java/jre1.6.0_07/plugin/i386/ns7/libjavaplugin_oji.so ./libjavaplugin_oji.so [root@ust plugins]# ls libjavaplugin_oji.so libnullplugin.so [root@ust plugins]# ll total 20 lrwxrwxrwx 1 root root 58 Sep 11 16:22 libjavaplugin_oji.so -> /usr/java/jre1.6.0_07/plugin/i386/ns7/libjavaplugin_oji.so -rwxr-xr-x 1 root root 19160 Sep 15 2007 libnullplugin.so [root@ust plugins]# but when m trying to open forms at that time giving error "install j2se plugin version 1.6.0_07 on your client and NPX_PLUGIN_PATH environment variable set before starting Netscape."

Linux is not a certified client tier for accessing EBS
Unable to access r12 forms in linux client
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HTH
Srini

How to install J2EE and difference to J2SE

Hi! Sorry to cross-post, but I thought this might be a better forum for this question.
http://forums.java.sun.com/thread.jspa?threadID=662616&tstart=0

Hai,
if you want work with j2ee,just download j2ee software from vendors
and work out.The sun provides software for j2ee,just download the lattest version from the following url
http://java.sun.com/j2ee/download.html
j2ee & j2se Differents:
1. J2SE is the Java 2 Standard Edition that contains your basic core Java classes. This is the one that most people use to write your standard applets and applications.
2. J2EE is the Java 2 Enterprise Edition and it contains classes that go above and beyond J2SE. In fact, you will need J2SE in order to use many of the classes in J2EE. Some of the things that J2EE provides are server-side classes such as Servlets and EJB's. It also contains Security API, Java Mail API, XML Parsers etc., Java Messaging Service API, and a few others. A few of these API's have been included in the new J2SE 1.4 version and are now considered standard. The XML API is an example of this.
bye

Webstart 6.0 Forcing JRE Version and Arch

I have an Eclipse RCP application that is being deployed via Webstart 6.0. Our users hit our tomcat webserver and download the root jnlp. When the root JNLP is double-clicked the very first time (from the browser status bar) the application launches successfully. If the user attempts to launch the application again by double clicking on the file in their downloads folder or via the java application cache viewer the application fails. After much research I discovered that several of the jars are not being loaded on the second attempt, ie. org.eclipse.swt.win32.win32.x86_3.7.2.v3740f.jar). Looking at the javaws logs I found this difference:
When it worked the log showed:
<record>
<date>2012-03-22T13:11:10</date>
<millis>1332443470149</millis>
<sequence>222</sequence>
<logger>com.sun.deploy</logger>
<level>FINE</level>
<class>com.sun.deploy.util.LoggerTraceListener</class>
<method>print</method>
<thread>10</thread>
<message>basic: DefaultMatchJRE:
JREDesc: JREDesc[version 1.5+, heap=-1--1, args=null, href=null, sel=true, null, null]
JREInfo: JREInfo for index 0:
platform is: 1.6
product is: 1.6.0_26
location is: http://java.sun.com/products/autodl/j2se
path is: C:\Program Files (x86)\Java\jre6\bin\javaw.exe
args is: null
native platform is: Windows, x86 [ x86, 32bit ]
enabled is: true
registered is: true
system is: true
Init Heap: -1
Max Heap: 67108864
Satisfying: false, true
SatisfyingVersion: true
SatisfyingJVMArgs: false, true
SatisfyingSecure: false
Selected JVMParam: [JVMParameters: isSecure: false, args: [email protected]/AppData [email protected]/AppData -Declipse.application=com.issinc.tnsClient.core.application]
Running JVMParam: [JVMParameters: isSecure: true, args: ]
</message>
</record>
When it failed:
record>
<date>2012-03-22T13:11:45</date>
<millis>1332443505434</millis>
<sequence>214</sequence>
<logger>com.sun.deploy</logger>
<level>FINE</level>
<class>com.sun.deploy.util.LoggerTraceListener</class>
<method>print</method>
<thread>10</thread>
<message>basic: DefaultMatchJRE:
JREDesc: JREDesc[version 1.5+, heap=-1--1, args=null, href=null, sel=true, null, null]
JREInfo: JREInfo for index 0:
platform is: 1.6
product is: 1.6.0_30
location is: http://java.sun.com/products/autodl/j2se
path is: C:\Program Files\Java\jdk1.6.0_30\bin\javaw.exe
args is: null
native platform is: Windows, amd64 [ x86_64, 64bit ]
enabled is: true
registered is: true
system is: true
Init Heap: -1
Max Heap: 67108864
Satisfying: false, true
SatisfyingVersion: true
SatisfyingJVMArgs: false, true
SatisfyingSecure: false
Selected JVMParam: [JVMParameters: isSecure: false, args: [email protected]/AppData [email protected]/AppData -Declipse.application=com.issinc.tnsClient.core.application]
Running JVMParam: [JVMParameters: isSecure: true, args: ]
</message>
</record>
My JNLP has:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:9080/RcpClient" href="rcpclient.jnlp">
     <information>
          <title>RCP Client</title>
          <vendor>My Company</vendor>
          <description>RCP Client Application</description>
          <shortcut>
               <desktop/>
          </shortcut>
     </information>
     <security>
          <all-permissions/>
     </security>
     <update check="always" policy="always"/>
     <resources>
          <jar href="plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar"/>
          <extension name="Wrapper feature" href="features/rcpClient_1.0.0.jnlp" />
          <property name="osgi.instance.area" value="@user.home/AppData"/>
          <property name="osgi.configuration.area" value="@user.home/AppData"/>
          <property name="eclipse.application" value="rcpClient.core.application"/>
     </resources>
     <resources os="Windows" arch="x86">
          <j2se version="1.5+"/>
     </resources>
     <application-desc main-class="org.eclipse.equinox.launcher.WebStartMain">
          <argument>-nosplash</argument>
     </application-desc>
</jnlp>
I've tried several different options on the j2se and the resources os="Windows", but with no success. How do I control the version of the jre used so that the app runs consistently? On my development laptop I have both a 32 and 64 bit JRE, our end users will most likely only have the 32 bit.

It will be easier if you will paste trace files. See troubleshooting guide for more details on how to get detailed trace:
http://docs.oracle.com/javase/7/docs/webnotes/tsg/TSG-Desktop/html/plugin.html#gcexdf
The only weird thing in your log snippet (that is too small to give full picture) is that second time JRE is used from inside the JDK.
This should not happen and likely caused by the fact JDK bin folder is in your system PATH (unless it is corrupt registry).
Try removing it or add true JRE folder in front of JDK bin in the path.
Generally speaking JDK is not supposed to be used to run webstart or applets. It is good for development (compilation) but to execute
webstart or applet it is expected that user has JRE installed.

I have been getting java.lang.ClassNotFoundException: ZeroApplet.class and java.lang.ClassNotFoundException: JavaToJS.class crashes with JRE version 1.6.0_26-b03-384-10M3425 VM executing a Java Applet. Is Apple aware of this problem? No longer supported?

My web page uses a Java Applet to allow my visitors to replay chess games; the Chess Viewer Deluxe applet was written by Nikolai Pilafov some time ago and has been working properly for some time (until recently). I don't monitor this part of my site regularly so I am not sure when it began to fail. On his web site [http://chesstuff.blogspot.com/2008/11/chess-viewer-deluxe.html] he has a link to check LiveConnect object functionality (which fails for OBJECT tags). His recommendation is to "seek platform specific support which might be available from the JRE developers for your platform".
I have been getting java.lang.ClassNotFoundException: ZeroApplet.class and java.lang.ClassNotFoundException: JavaToJS.class crashes with JRE version 1.6.0_26-b03-384-10M3425 VM executing a Java Applet. Until I checked the LiveConnect object functionality, I was unable to identify the source of the console error messages. This does seem to be the smoking gun.
Is Apple aware of this problem? Are these classes no longer supported? Has anyone else had this problem? You can attempt to recreate the problem locally by going to my web page: http://donsmallidge.com/DonSmallidgeChess.html
Thanks in advance for any help you can provide!
Abbreviated Java Console output:
Java Plug-in 1.6.0_26
Using JRE version 1.6.0_26-b03-384-10M3425 Java HotSpot(TM) 64-Bit Server VM
load: class ZeroApplet.class not found.
java.lang.ClassNotFoundException: ZeroApplet.class
    at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:211)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:144)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:662)
    at sun.applet.AppletPanel.createApplet(AppletPanel.java:807)
    at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2389)
    at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
    at sun.applet.AppletPanel.run(AppletPanel.java:368)
    at java.lang.Thread.run(Thread.java:680)
load: class JavaToJS.class not found.
java.lang.ClassNotFoundException: JavaToJS.class
    at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:211)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:144)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:662)
    at sun.applet.AppletPanel.createApplet(AppletPanel.java:807)
    at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2389)
    at sun.applet.AppletPanel.runLoader(AppletPanel.java:714)
    at sun.applet.AppletPanel.run(AppletPanel.java:368)
    at java.lang.Thread.run(Thread.java:680)

I just went up to check the LiveConnect object functionality page AND IT WORKED THIS TIME! I must confess, this is very mysterious. I will do some more checking and reply here if I can determine why it is working now (and more importantly, why it didn't work before).

J2SE Plugin version 1.4.2_04 on your client and NPX_PLUGIN_PATH environment

Dear all,
I get the following error while trying to login into Oracle EBS Applications, from an Ubuntu client OS.
Please advice me with the solution for the same...
Error Message :
In order to access this application, you must install the J2SE Plugin version 1.4.2_04 on your client and NPX_PLUGIN_PATH environment variable is set before starting Netscape. To install this plugin, click here to download the oajinit.exe executable. Once the download is complete, double-click the oajinit.exe file to install the plugin. You will be prompted to restart your browser when the installation is complete.
SOMEBODY, PLEASE REPLY IMMEDIATELY
Edited by: Anand.C on Mar 6, 2008 1:51 PM

Linux is not a certified client tier for accessing EBS
Unable to access r12 forms in linux client
https://forums.oracle.com/search.jspa?view=content&resultTypes=&dateRange=all&q=linux+client&rankBy=relevance&contentTyp…
HTH
Srini

I would like to create the a swatch, add it to the library and import to the swatch panel. The help pages available relate to earlier versions of Muse, which does not work with the 2014.2 release version that I have. I have created a library folder, imp

I would like to create the a swatch, add it to the library and import to the swatch panel. The help pages available relate to earlier versions of Muse, which does not work with the 2014.2 release version that I have. I have created a library folder, imported the colour swatch as just 4 colours as a mulib file. I drag the four colours on to the muse page in design view but that is as far as I get. Can anyone help? Thanks

I don't know since I don't share anything. You'll have to peruse the help files and check the permissions and ACLs on the Shared folder. According to the permissions on the Shared folder everyone can R&W. If you want those to be inherited by everything dropped into the folder, add an ACL for
everyone allow read, write
Details in the manpage for chmod. The actual steps are left as an exercise.

Use 2 jre versions (Java 5.x and Java 6.x) on diferent web pages.

On windows XP SP3.
I need use on internet explorer 7 and firefox 3, 2 differents JRE versions for two diferent servers
example:
- "www.site1.com" needs java 5.x (don't work with java 6.x)
- "www.site2.com" needs java 6.x (don't work with java 5.x)
If i have installed both versions, internet explorer and firefox even uses java 6.x, and i only can use java 5.x if uninstall java 6.x
I need use to default use: java 6.x; except for "www.site1.com" that i need use java 5.x
How can use both JRE versions?

Questions: Do you plan to use the same web browser? The earlier applet running on JRE 1.5.x cannot run on 1.6 ? Sun puts forth a lot of effort in attempt to ensure that applets are forwards compatible.

JRE versions and Browsers and Applets

Is there a way to assign a particular JRE version to a browser session through JavaScript or VBScript programatically so that I can run applets from different sources which need different JREs?
Basically I will have 2 links/buttons which will call two separate javascript methods to open two different browser windows to run two different applets running under different JREs
However when I start IE each 'session' of IE is assigned to one JRE, any way to overcome this?
TIA,
Raj

Martin thanks for your inputs
I am sourcing html pages from multiple sites and the html/applet tag is generated by those websites.
They do have the applet tag pointing to proper class-id of the java plugin.
However, the problem is with IE one family(session) of browsers are attached to one version of JRE plugin.
Here 'session' means: you open a browser and from within that browser you do go from a link or javascript etc. to another browser they are in same 'session'
I am working on dynamically setting JRE plugin version to different browsers.
Not sure I made it clear or confusing : )
Thanks

No jre version found in launch file

I'm using jdk1.5.0_03 (with all other versions of java removed from my system) and trying to run our web start app that specifies a version of 1.4.2*. After clicking the link to the jnlp file, web start contacts sun to retrieve 1.4.2*, then gives the dialog: "unable to launch FlowJo" (our app). On the details tab, it reports: "No JRE version found in launch file for this system".
When I launch the web start manager, under the user applications tab, I see 3 applications: our app, our installer, and Sun's j2re1.4.2_07 installer. It seems like Sun's installer is being downloaded but never executed.
Am I doing something wrong in my jnlp files? Both our app jnlp and our installer jnlp specify a j2se version of 1.4.2*. Below are the files and exception as reported from the web start dialog. I'm trying to set our app up for internal testing with web start, so I'm using a local ip. Our application uses a custom installer which has its own jnlp file (shown below in "launch file").
Any help is much appreciated,
Peter
Launch File:
<?xml version="1.0" encoding="utf-8"?>
<jnlp codebase="http://192.168.1.33/flowjo/current/installer/">
<information>
<title>FlowJo Installer</title>
<vendor>Tree Star, Inc.</vendor>
<homepage href="http://www.flowjo.com"/>
<icon href="images/logo2fin.gif"/>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources os="Windows" arch="x86">
<j2se version="1.4.2*" maximum-heap-size="512m" href="http://java.sun.com/products/autodl/j2se" />
<jar href="http://192.168.1.33/flowjo/current/installer//installer.jar" />
</resources>
<installer-desc main-class="com.treestar.flowjo.install.JNLPInstaller"/></jnlp>
Main launch file:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp codebase="http://192.168.1.33/flowjo/current/flowjo/">
<information>
<title>Flowjo </title>
<vendor>Tree Star, Inc.</vendor>
<icon href="images/logo2fin.gif"/>
<offline-allowed/>
<shortcut online="false">
<desktop/>
<menu submenu="Flowjo "/>
</shortcut>
<association extensions="wsp" mime-type="x-application/wsp"/>
<association extensions="wspt" mime-type="x-application/wspt"/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.4.2*" initial-heap-size="128M" max-heap-size="512M" href="http://java.sun.com/products/autodl/j2se" />
<jar href="flowjo.jar" />
<jar href="resources.jar" />
<extension name="FlowJo Installer" href="http://192.168.1.33/flowjo/current/installer/installer.jnlp"/>
</resources>
<resources os="Windows">
<nativelib href="http://192.168.1.33/flowjo/current/lib/FlowJoEngine.DLL.jar"/>
</resources> <application-desc main-class="com.treestar.flowjo.Main" />
</jnlp>
Exception:
JNLPException[category: Launch File Error : Exception: null : LaunchDesc:
<jnlp spec="1.0+" codebase="http://192.168.1.33/flowjo/current/installer/">
<information>
    <title>FlowJo Installer</title>
    <vendor>Tree Star, Inc.</vendor>
    <homepage href="http://www.flowjo.com"/>
    <icon href="http://192.168.1.33/flowjo/current/installer/images/logo2fin.gif" kind="default"/>
    <offline-allowed/>
</information>
<security>
    <all-permissions/>
</security>
<resources>
    <j2se href="http://java.sun.com/products/autodl/j2se" version="1.4.2*"/>
    <jar href="http://192.168.1.33/flowjo/current/installer//installer.jar" download="eager" main="false"/>
</resources>
<installer-desc main-class="com.treestar.flowjo.install.JNLPInstaller"/>
</jnlp> ]
     at com.sun.javaws.Launcher.executeInstallers(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

The use of an earlier jre in the resource tag does no
good:
<resources>
<j2se version="1.4.1" />
Still gives the same error;
JNLPException[category: Launch File Error : Exception: null : LaunchDesc:
<jnlp spec="1.0+" codebase="http://show.docjava.com:8086/book/cgij/code/jnlp/" href="http://show.docjava.com:8086/book/cgij/code/jnlp/bookExamples.ch44Printing.cdLabel.CdLabelPrinterMain.jnlp/">
<information>
    <title>Experimental Labeler</title>
    <vendor>DocJava, Inc.</vendor>
    <homepage href="http://www.docjava.com"/>
    <description>CD Label Printer
     </description>
    <description kind="short">
      Printer
</description>
    <description kind="one-line">CD Label Printer
     </description>
    <description kind="tooltip">CD Label Printer
     </description>
    <icon href="http://show.docjava.com:8086/consulti/docjava.jpe" kind="default"/>
</information>
<application-desc main-class="bookExamples.ch44Printing.cdLabel.CdLabelPrinterMain"/>
</jnlp> ]
     at com.sun.javaws.Launcher.handleLaunchFile(Launcher.java:186)
     at com.sun.javaws.Launcher.run(Launcher.java:167)
     at java.lang.Thread.run(Thread.java:552)
Can someone please help?
Thanks!
- DL

No JRE version found in launch file for this system

Hi,
I have an application which is launched by JWS.
When we use JWS from 1.4, it runs fine. But JWS from 1.5.0_15 gives the error "No JRE version found in launch file for this system"
In both the JWS(1.4 and 1.5.0_15)cases, we install JRE1.5.0_15 using the installer and used for invoking the application.
We invoke mailclient.jnlp, which inturn invokes the installer.jnlp and KanaJreInstaller.asp
<<mailclient.jnlp>>
<?xml version="1.0" encoding="utf-8"?>
<jnlp
spec="1.0"
codebase="http://mpshanmu-gx520:80/10r3/"
href="mailclient.jnlp">
<information>
<title>KANA Agent</title>
<vendor>KANA Software, Inc.</vendor>
<homepage href="http://www.kana.com"/>
<description>KANA Suite 10.3.0</description>
<icon href="images/mail_logo.gif"/>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="KANA1.5.0_15" href="KanaJreInstaller.asp"/>
<jar href="lib/mailclient_s.jar"/>
<jar href="lib/link_s.jar"/>
<jar href="lib/spell_s.jar"/>
<jar href="lib/ssce_s.jar"/>
<jar href="lib/kc_framework_s.jar"/>
<jar href="lib/kc_sharedGUI_s.jar"/>
<jar href="lib/xalan_s.jar"/>
<jar href="lib/xerces_s.jar"/>
<jar href="lib/java2com_s.jar"/>
<jar href="lib/jgl3.1.0_s.jar"/>
<jar href="lib/rsrcbundle_s.jar"/>
<jar href="lib/response_s.jar"/>
<jar href="lib/HTMLEditorEnterprise_s.jar"/>
<jar href="lib/jakarta-oro-2.0.4_s.jar"/>
<jar href="lib/jdic_s.jar"/>
<extension name="Sun Libraries" href="sunextensions.jnlp"/>
</resources>
<resources os="Windows">
<nativelib href="lib/windlls_s.jar"/>
<nativelib href="lib/jdic-native.jar"/>
</resources>
<application-desc main-class="kana.mail.wkstn.AppMain">
<argument>-serverlist</argument>
<argument>http://mpshanmu-gx520:80/10r3/servers.xml</argument>
</application-desc>
</jnlp>
<<KanaJreInstaller.asp>>
<%@ language="vbscript"%>
<%
Response.ContentType="application/x-java-jnlp-file"
Response.AddHeader "x-java-jnlp-version-id","KANA1.5.0_15"
dim fs,f,ts
set fs=Server.CreateObject("Scripting.FileSystemObject")
Set f=fs.GetFile("C:\Program Files\KANA\KANA Response Web Server_10r3\installer.jnlp")
Set ts=f.OpenAsTextStream(1)
Response.Write(ts.ReadAll)
ts.Close
set ts=nothing
set f=nothing
set fs=nothing
%>
<<installer.jnlp>>
<?xml version="1.0" encoding="utf-8"?>
<jnlp
spec="1.0"
codebase="http://mpshanmu-gx520:80/10r3/"
href="installer.jnlp">
<information><title>KANA J2RE 1.5.0_15 Installer</title>
<vendor>KANA Software, Inc.</vendor>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.3+"/>
<jar href="lib/installer.jar"/>
<jar href="lib/JRE_KANA1.5.0_15.jar"/>
<property name="jre.container" value="JRE_KANA1.5.0_15.jar"/>
<property name="jre.execute" value="bin\\javaw.exe"/>
<property name="jre.version" value="KANA1.5.0_15"/>
</resources>
<installer-desc main-class="JREInstaller"/>
</jnlp>
Thanks

>
We are using sun JRE(1.5.0_15) only. We extract Sun JRE and build it as KANAJRE.jar and signing.>I have never heard of KANAJRE. Would you care to post a link to the site, or should we just keep guessing? (My patience for random guesses is running out.)
>
We install using Intaller class and that is getting listed in the Java Control panel and enabled too.>List as what?
Does it list it with the entire string "KANA1.5.0_15" or is is just listed as "1.5.0_15"?
Because this line from the JNLP file..
<j2se version="KANA1.5.0_15" href="KanaJreInstaller.asp"/>..had me convinved it was a non-Sun JRE. Not so much the href, but most especially the version attribute.
If it really is the Sun JRE, I would expect this to work.
<j2se version="1.5.0_15" href="KanaJreInstaller.asp"/>And as an aside. If this installer is giving you trouble and the app. requires the 1.5.0_15 JRE, why not simply the default Sun JRE installer? What advantages do you think this installer offers?

Problem selecting the right jre version with jnlp

I am using Webstart 1.4.2.
When instaling, it correctly found 2 jre versions on my system, 1.4.1_03 and 1.4.2.
Because our application currently is not working with 1.4.2 I need to force webstart to use 1.4.1_03.
I tried to set the tag <j2se version="1.4.1_03"
When loading from the websever I get a "Error Code 11 (11 Could not locate requested version) "...same if I explicitly set to 1.4.2.
I suspect that webstart is checking the "platform version" which are set for both to 1.4 and not the "product version" (see java preferences in webstart).
Does somebody know if there is another jnlp tag I can use to force a specific version? or any other workaround.
In my opinion this is a bug webstart should check the product version
Thanks Marc

had the same problem...
ad the url and try again:
<resources>
<j2se version="1.4.1_03" href="http://java.sun.com/products/autodl/j2se"/>
<jar href="...
as far as I now are not all JRE's available for autodownload.
Good luck!

All jre versions now available for autodl.

A new jre autodownload servlet has now been put in production by Sun that can serve to java web start (and also the new OOPP plugin in 6u10) any veresion of the jre (from 1.4.2 on)
/Andy

When we use the following syntax in the JNLP file, an exception message of "Unable to launch 1.6...installer" is displayed.
{color:#339966}<j2se version="1.6+" initial-heap-size="64m" max-heap-size="128m"/>
{color}{color:#000000}Not too long ago, Java Web Start successfully retrieved the most recent 1.6 installer if the JRE version on the target system was under 1.6.
What has changed?{color}
Edited by: kcchristoph on Jun 6, 2008 3:10 PM

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