Java web start - Unable to load resource

Question

I've got a jar that loads great with java web start when I browse through the IP address of the server. Once I try the server name instead I get the following exception:

com.sun.deploy.net.FailedDownloadException: Unable to load resource:
    at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
    at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

The wrapped exception:

java.io.FileNotFoundException: 
  at sun.reflect.GeneratedConstructorAccessor2.newInstance(Unknown Source)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
  at java.lang.reflect.Constructor.newInstance(Unknown Source)
  at sun.net.www.protocol.http.HttpURLConnection$6.run(Unknown Source)
  at java.security.AccessController.doPrivileged(Native Method)
  at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
  at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
  at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
  at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
  at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
  at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
  at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
  at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
  at java.util.concurrent.FutureTask.run(Unknown Source)
  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: 
  at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
  at java.net.HttpURLConnection.getResponseCode(Unknown Source)
  ... 15 more

JNLP:

<?xml version="1.0" encoding="utf-8"?>
<jnlp
    spec="1.0+"
    codebase="http://servername/Site/Views/.."
    href="">
    <information>
        <title>title</title>
        <vendor>vendor</vendor>
        <description>description</description>
        <description kind="short">short</description>
        <icon href="../../icon.gif" />
    </information>
    <security>
        <all-permissions/>
    </security>
    <resources>

        <j2se version="1.5+" java-vm-args="-Xmx1000M -Xms150M" initial-heap-size="150M" max-heap-size="1000M" />
        <j2se version="1.4.2+" href="http://java.sun.com/products/autodl/j2se" java-vm-args="-Xmx1000M -Xms150M" initial-heap-size="150M" max-heap-size="1000M" />

        <jar href="/file.jar"/>
    </resources>
    <application-desc main-class="com....">
        <argument>CD6B172DEC34924D83EA64A61A6550BE1271325929392</argument>
        <argument>http://servername/file.asp</argument>
        <argument>/Site</argument>
    </application-desc>
</jnlp>

Any idea what should I look for?

what does your jnlp/webstart config file look like? – James B Apr 15 '10 at 10:13 — James B, Apr 15 '10 at 10:13

CD.. · Accepted Answer · 2010-04-15T10:36:06.150

15

I've changed the java proxy settings to direct connection - and it works.

edited Apr 15 '10 at 10:36

answered Apr 15 '10 at 10:30

CD..

72,281
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1

Proxy setting can be found in the "Java Control Panel" (javacpl or "Configure Java" under windows) – Shaun Dewberry Aug 11 '17 at 09:42
3

It did not help me even after changing settings to direct connection. – G.G. Feb 15 '19 at 03:00

score 6 · Answer 2 · edited Dec 14 '16 at 02:04

6

Try using Janela or github to diagnose the problem.

edited Dec 14 '16 at 02:04

Nathan

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answered Apr 15 '10 at 10:28

JRL

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score 2 · Answer 3 · edited Nov 02 '12 at 07:35

2

Include your IP address in your host file (C:\Windows\System32\drivers\etc\host) for the respective server:

Sample Entry:

10.100.101.102 server1.us.vijay.com Vijay's Server

edited Nov 02 '12 at 07:35

Andro Selva

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answered Nov 02 '12 at 07:15

Vijay Sharma

21
1

score 1 · Answer 4 · answered Apr 15 '10 at 10:31

I'm not sure exactly what the problem is, but I have looked at one of my jnlp files and I have put in the full path to each of my jar files. (I have a velocity template that generates the app.jnlp file which places it in all the correct places when my maven build runs)

One thing I have seen happen is that the jnlp file is re-downloaded by the by the webstart runtime, and it uses the href attribute (which is left blank in your jnlp file) to re-download the file. I would start there, and try adding the full path into the jnlp files too...I've found webstart to be a fickle mistress!

score 1 · Answer 5 · answered Mar 23 '16 at 03:29

1

If anyone else gets here because they're trying to set up a Jenkins slave, then you need to set the url of the host to the one it's actually using.

On the host, go to Manage Jenkins > Configure System and edit "Jenkins URL"

answered Mar 23 '16 at 03:29

mowwwalker

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This help when we try to add slave to the Jenkins master. You need to change the Jenkins URL to the one where you host the jenkins master. – Aamir M Meman Mar 18 '21 at 22:34

score 0 · Answer 6 · answered Nov 23 '17 at 11:19

0

i got the same issue, i updated the hosts file with the server address and it worked

answered Nov 23 '17 at 11:19

user8996057

1

score 0 · Answer 7 · answered Apr 16 '19 at 20:48

0

changing java proxy settings to direct connection did not fix my issue.

What worked for me:

Run "Configure Java" as administrator.
Go to Advanced
Scroll to bottom
Under: "Advanced Security Settings" uncheck "Use SSL 2.0 compatible ClientHello format"
Save

answered Apr 16 '19 at 20:48

Brent Sandstrom

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Didn't worked for me :( – Rahid Zeynalov Aug 18 '23 at 06:02

score 0 · Answer 8 · answered Aug 12 '20 at 11:20

0

this also worked for me , thanks a lot

changing java proxy settings to direct connection did not fix my issue.

What worked for me:

Run "Configure Java" as administrator.
Go to Advanced
Scroll to bottom
Under: "Advanced Security Settings" uncheck "Use SSL 2.0 compatible ClientHello format"
Save

answered Aug 12 '20 at 11:20

didi2020

11

1

Didn't work for me, and it was already unchecked. – SaeX Dec 28 '20 at 12:33

score -1 · Answer 9 · answered Sep 09 '20 at 06:21

-1

In Advance Tab -> scroll down and un-checked all options in advance security setting and try by checking one-by-one and finally app start running with one option TLS 1.1

that was the solution I got it.

answered Sep 09 '20 at 06:21

Niaz Ur Rehman

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Java web start - Unable to load resource

9 Answers9

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