icedtea netx fails to run jnlp

[Miguel Gaspar]

javaws from icedtea-netx 1.2-2ubuntu-1 errors with at least two different *.jnlp, with the following error message:

$javaws -verbose http://www.geogebra.org/webstart/5.0/geogebra-50.jnlp
No User level deployment.properties found.
Starting security dialog thread
Using firefox's profiles file: /home/miguel/.mozilla/firefox/profiles.ini
Found preferences file: /home/miguel/.mozilla/firefox/z7uvh3h0.default/prefs.js
Read 233 entries from Firefox's preferences
JNLP file location: http://www.geogebra.org/webstart/5.0/geogebra-50.jnlp
call privileged method: getCodeBase
        result: null
Status: CONNECT STARTED +(CONNECT STARTED) @ /webstart/5.0/geogebra-50.jnlp
Status: CONNECT DOWNLOAD STARTED +(DOWNLOAD) @ /webstart/5.0/geogebra-50.jnlp
Status: CONNECTING DOWNLOAD STARTED +(CONNECTING) -(CONNECT) @ /webstart/5.0/geogebra-50.jnlp
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
 at java.lang.String.substring(String.java:1943)
 at java.lang.String.substring(String.java:1916)
 at net.sourceforge.jnlp.cache.CacheUtil.pathToURLPath(CacheUtil.java:380)
 at net.sourceforge.jnlp.cache.CacheUtil.getCacheFileIfExist(CacheUtil.java:363)
 at net.sourceforge.jnlp.cache.CacheUtil.getCacheFile(CacheUtil.java:307)
 at net.sourceforge.jnlp.cache.CacheEntry.<init>(CacheEntry.java:56)
 at net.sourceforge.jnlp.cache.ResourceTracker.initializeResource(ResourceTracker.java:769)
 at net.sourceforge.jnlp.cache.ResourceTracker.processResource(ResourceTracker.java:611)
 at net.sourceforge.jnlp.cache.ResourceTracker.access$500(ResourceTracker.java:72)
 at net.sourceforge.jnlp.cache.ResourceTracker$Downloader$1.run(ResourceTracker.java:1115)
 at net.sourceforge.jnlp.cache.ResourceTracker$Downloader$1.run(ResourceTracker.java:1113)
 at java.security.AccessController.doPrivileged(Native Method)
 at net.sourceforge.jnlp.cache.ResourceTracker$Downloader.run(ResourceTracker.java:1113)
 at java.lang.Thread.run(Thread.java:679)

I am running Ubuntu 12.04 with all updates. openjdk-6-jre version is 6b24-1.11.1-ubuntu3.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Markus (makkus)]

Got the same behaviour. Probably some mixup with signed and unsigned (or differently signed) jars and the webstart cache.

Try to delete ~/.icedtea, worked for me...