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I have upgraded to java 7 and unable to start Swing application via Java web start. It says 3 manifest attributes are missing: "Codebase", "Permissions" and "Application-name".

I added those missing attributes to manifest file while creating a .jar and signed them. I can see finally those attributes in the jar. But while launching Swing GUI from web start it says same error 3 manifest attributes are missing.

Stephen Ostermiller
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Sagar
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  • The proper way to add the manifest attributes and sign them can be found in this question: http://stackoverflow.com/a/19659135/963076 – ryvantage Dec 05 '13 at 12:33

2 Answers2

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You need to update those items in the JNLP not the jar since you are launching this via webstart.

Example from: http://docs.oracle.com/javase/tutorial/deployment/webstart/deploying.html

<jnlp spec="1.0+" codebase=
"http://docs.oracle.com/javase/tutorialJWS/samples/deployment/webstart_ComponentArch_DynamicTreeDemo" 
    href="dynamictree_webstart.jnlp">
    <information>
        <title>Dynamic Tree Demo</title>
        <vendor>Dynamic Team</vendor>
    </information>
    <resources>
        <!-- Application Resources -->
        <j2se version="1.7+"
              href="http://java.sun.com/products/autodl/j2se"/>
        <jar href="DynamicTreeDemo.jar"
            main="true" />

    </resources>
    <application-desc
         name="Dynamic Tree Demo Application"
         main-class=
           "webstartComponentArch.DynamicTreeApplication"
         width="300"
         height="300">
     </application-desc>
     <update check="background"/>
</jnlp>

For permissions you possibly need the security tag, here is a writeup about that tag from: http://lopica.sourceforge.net/ref.html#security

By default every application runs in a restricted execution environment (aka sandbox). If an app runs in a secure sandbox, it must follow these restrictions:

No access to local disk. All your jars must be downloaded from the same host. Note, however, that you can download extensions and JREs from any host as long as they are signed and trusted. Network connections are allowed only to host from which your jars were downloaded. ("Phone home restriction.") No security manager can be installed. No native libraries (not even in extensions). Limited access to system properties. (The application has read/write access to all system properties defined in the jnlp file, as well as read-only access to the same set of properties as applets (see System Properties Available for Unsigned Apps for a complete list).) If you specify all-permissions, the app can do whatever it wants and has full access to the user's machine and local network.

Contents

all-permissions?, j2ee-application-client-permissions? 

<security>
  <all-permissions/>
</security>
jzd
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The link provided by you clearly says update jar am not sure why you are saying jnlp file. JNLP file is in place and has securty tag

Sagar
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