Exception in Java Web Start

[Jaganmohini]

Hello,
I have a small problem with JWB. When I run my jnlp file, there is an exception under the following terms: "JNLPException [category: Download Error: Exception: java.net.UnknownHostException. This launch is a test. I also enclose the contents of my jnlp file. It may contain gross errors as I discovered. Any help how to resolve this error? Thank you.

[cyber-noob]

You can try the following code

<? Xml version="1.0" encoding="utf-8"?>
<! - JNLP File for SwingSet2 Demo Application ->
<jnlp
  sp="1.0 +"
  codebase="file: / / D: / development / Project / example "
  href="example.jnlp">
  <information>
    <title>Application example Test</ title>
    <vendor>BDI / EMAT-BPO</ vendor>
    <homepage href="temp.html"/>
    <description> Demo Application</ description>
    <description kind="short">A demo </ description>
    
    <offline-allowed/>
  </ Information>
  <security></ security>
  <Resources>
    <j2se version="1.3"/>
    <jar href="tset.jar" hand="true"/>
  </ resources>
  <application-desc -hand class="MainTest"/>
</ jnlp>

[Jensen Ackles]

If the above code does not work then you can try to replace these
codebase ="file: / / D: / development / project /exmaple"
by

 codebase ="file: / / / D: / development / project /exmaple"

And see what is the output of this.

[Bricklayer]

Question java web start as long as there is

1 / I already have a j2se application is it possible to move easily in java web start?

2 / Java web start is just an applet if I understand the thing but with all the restrictions of applets?

3 / What do I need to create a server jws ultimately?

[InterNetWorKed]

1) no problem to place an application in java web start ... it need only be packaged in jar (and signed if it acceded to the network (other than the server start) or the system)

2) it's not really an applet is independent of the browser. You have two types of restrictions: no restrictions or sandbox classqiue but in this case, you should sign your jar file (which is very simple). java web start cache manages jar (actually, it checks the last modified date on each server startup) and you can authorize or deny an application to run offline

3) can be used to jws from a file system (AC can serve as an installer) or a single web server. It just has to have the web server mime type of jnlp said (if not, you just add a line of conf has this server, or tweak it with a scripting language such PHP or perl

[jakeswatson]

Ya i have also got the same problem having the same exception when developing the Java

[EINSTEIN_007]

Ya i have also got the same problem having the same exception when developing the Java

Can you please specify in details what's the problem you are facing? I also had a similar issue when upgrading to the latest JRE. Our issue seemed to be related to this bug that should be fixed in 6u14. Perhaps your issue is also related. The only workaround we found was to clear the webstart cache and launch the application again. In our experience this seems to be the solution to most webstart issues.