Web Start version won't launch: "Unable to launch the application: Unsigned application requesting unrestricted access to system"

[pbb]

Hi,

All of a sudden, I am not able to launch the Web Start version (JNLP) of JOSM anymore.

I receive a dialog window titled "Application Error" with the headline "Unable to launch the application."

There is a Details button, clicking this opens another window with the text "Error: Unsigned application requesting unrestricted access to system / Unsigned resource: ​http://josm.openstreetmap.de/download/josm-tested.jar".

There is also a textfield with two tabs Launch File and Exception. Both contain more or less the same info, the Exception tab containing a bit more:

JNLPException[category: Security Error : Exception: null : LaunchDesc: 
<jnlp codebase="http://josm.openstreetmap.de/download/" href="josm.jnlp">
  <information>
    <title>JOSM</title>
    <vendor>OpenStreetMap</vendor>
    <homepage href="http://josm.openstreetmap.de/"/>
    <description>Java OpenStreetMap editor</description>
    <description kind="one-line">JOSM</description>
    <description kind="tooltip">JOSM</description>
    <icon href="http://josm.openstreetmap.de/svn/trunk/images/logo.png"/>
    <shortcut>
      <desktop/>
      <menu/>
    </shortcut>
    <offline-allowed/>
  </information>
  <resources>
    <j2se version="1.6+"/>
    <jar href="josm-tested.jar"/>
  </resources>
  <security>
    <all-permissions/>
  </security>
  <application-desc main-class="JOSM"/>
</jnlp> ]
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source)
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
	at com.sun.javaws.Launcher.launch(Unknown Source)
	at com.sun.javaws.Main.launchApp(Unknown Source)
	at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
	at com.sun.javaws.Main$1.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

This may be caused by a policy change (it's my office computer, connected to a domain).

Luckily, the download version still seems to work.

[skyper]

Works for me with Debian wheezy (testing) and iceweasel 10.0.6 (aka firefox).

java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.3) (6b24-1.11.3-2)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)

Please supply more information about your system. Did you check it with a different browser ?

[pbb]

The error message is independent of the webbrowser used (I tested with Internet Explorer, Firefox, Chrome, Opera); it even happens when I launch the JNLP file straight from the desktop.

I am running Java version 7 update 5 (according to Java.com), on Windows 7 Professional SP1.

[stoecker]

Very likely policy restrictions, which catch our self-signed java file.