Lunch Application via Java Web Start

I am going to use Java Web Start to distribute a Java application. The application includes two jar files: Client.jar and log4j-1.2.13.jar. When application starts up, error message displayed: Found unsigned entry in resource: http://localhost/JavaClient/ log4j-1.2.13.jar. The exception is: com.sun.deploy.net.JARSigningException.

The Java runtime is JRE 6. I don't have the source code of the Java application.

Here is jnlp codes:

<?xml version="1.0" encoding="utf-8"?>

<jnlp
spec="1.0+"
codebase="http://localhost/JavaClient" href="Client.jnlp">

<information>
<title>Java Client</title>
<vendor>MyCompany Inc.</vendor>
<description>Java Web Client</description>

</information>

<security>
<all-permissions/>
</security>

<resources>
<j2se version="1.4+"/>
<jar href="Client.jar"/>
<jar href="log4j-1.2.13.jar" />
</resources>

<application-desc main-class="com.myCompany.Security.LogOn">
<argument> -verbose</argument>
</application-desc>
</jnlp>

JavaJava EE

Last Comment

dev_yinz

8/22/2022 - Mon

ASKER CERTIFIED SOLUTION

for_yan

3/12/2012

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dev_yinz

3/12/2012

ASKER

Following the instruction, I change the content of MANIFEST.MF. If Java Caching is enabled, I see the exception (I can "download" the log4j-1.2.13.jar from address so it shall not be access rights issue). If I disable Java Caching, signature exception happened again.

Exception:
com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://localhost/JavaClient/log4j-1.2.13.jar
      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)

Wrapped Exception:
java.io.IOException: invalid manifest format
      at com.sun.deploy.cache.CacheEntry$9.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at com.sun.deploy.cache.CacheEntry.writeFileToDisk(Unknown Source)
      at com.sun.deploy.cache.Cache.downloadResourceToTempFile(Unknown Source)
      at com.sun.deploy.cache.Cache.downloadResourceToCache(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
      at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
      at com.sun.javaws.LaunchDownload$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)

Original MANIFEST.MF:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.4
Created-By: 1.3.1_16-b06 (Sun Microsystems Inc.)

Name: org/apache/log4j/
Implementation-Title: log4j
Implementation-Version: 1.2.13
Implementation-Vendor: "Apache Software Foundation"

After Change:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.4
Created-By: 1.3.1_16-b06 (Sun Microsystems Inc.)

Implementation-Title: log4j
Implementation-Version: 1.2.13
Implementation-Vendor: "Apache Software Foundation"

for_yan

3/13/2012

I understood so that that whole thing (all four lines )
should be removed:

Name: org/apache/log4j/
Implementation-Title: log4j
Implementation-Version: 1.2.13
Implementation-Vendor: "Apache Software Foundation"

Don't know if I am correct

dev_yinz

3/13/2012

ASKER

I think log4j-1.2.13.jar is "unsigned" while Client.jar is signed by developer. I don't have source code, is there any way to "sign" the jar files? Or log4j-1.2.13.jar must be signed using the same private key as Client.jar?

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rwheeler23

SOLUTION

for_yan

3/13/2012

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dev_yinz

3/13/2012

ASKER

It is verson 6 update 30. (build 1.6.0_30-b12). I cannot down grade the Java version. Otherwise, I have to configure a lot of clients and most of them are overseas. I will see if there is any possible to sign the log4j-1.2.13.jar.

SOLUTION

for_yan

3/13/2012

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