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20050722: java problems with IDV

>From: Ed Hill <address@hidden>
>Organization: MIT
>Keywords: 200507221930.j6MJUkjo002938 IDV connection

Hi Ed-

>I just downloaded and installed the latest IDV using the InstallAnywhere
>package on a Linux (Fedora Core 3) system and have encountered the
>following bug:
>
>  ava.io.FileNotFoundException: Unable to
>open:http://stellwagen.er.usgs.gov/adria/models/roms_sed/roms_sed_coamps.xidv
>        at ucar.unidata.util.IOUtil.getInputStream(IOUtil.java:593)
>        at ucar.unidata.util.IOUtil.readContents(IOUtil.java:678)
>        at ucar.unidata.util.IOUtil.readContents(IOUtil.java:659)
>        at ucar.unidata.idv.IdvPersistenceManager.decodeXmlFile
>(IdvPersistenceManager.java:1567)
>        at ucar.unidata.idv.IdvPersistenceManager.decodeXmlFile
>(IdvPersistenceManager.java:1534)
>        at ucar.unidata.idv.IntegratedDataViewer.handleFileOrUrlAction
>(IntegratedDataViewer.java:992)
>        at ucar.unidata.idv.IntegratedDataViewer.handleAction
>(IntegratedDataViewer.java:1059)
>        at ucar.unidata.idv.DefaultIdv.handleAction(DefaultIdv.java:111)
>        at ucar.unidata.idv.IntegratedDataViewer.handleAction
>(IntegratedDataViewer.java:1022)
>        at ucar.unidata.idv.chooser.UrlChooser.loadURLInner
>(UrlChooser.java:176)
>        at ucar.unidata.idv.chooser.UrlChooser.loadURL
>(UrlChooser.java:152)
>        at ucar.unidata.idv.chooser.UrlChooser.access$000
>(UrlChooser.java:72)
>        at ucar.unidata.idv.chooser.UrlChooser$1.run
>(UrlChooser.java:191)
>        at ucar.unidata.util.Misc$2.run(Misc.java:773)
>
>
>Basically, any operation that attempts to connect to an external site
>results in a stack trace.  I know its not a firewall issue since (1) I
>have completely disabled my local machine's firewall and 

Does the ISP/organization have a firewall that might be blocking
Java from accessing the internet?

>(2) I have no
>trouble connecting to any of the URLs using either a web browser or a
>command line utility such as wget.

These will use a different program, so depending on the configuration,
java may be blocked from accessing the network.  For example, on
my firewall, I have to allow different version of Java to access
the internet, as well as different programs.

>So is there anything else I can do to help track down whats causing
>this?  Please let me know what I can do to help.  For instance, heres
>the output from "uname -a":
>
>  Linux ernie 2.6.12-1.1372_FC3 #1 Fri Jul 15 00:59:10 EDT 2005 
>    i686 i686 i386 GNU/Linux

I'm not sure what could be going on here except for some sort of
firewall.  Could you check for some firewall external to your
machine?

Don Murray
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