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List:       openjdk-distro-pkg-dev
Subject:    [Bug 1245] New: Offline launching from a shortcut results in fatal error
From:       bugzilla-daemon () icedtea ! classpath ! org (bugzilla-daemon at icedtea ! classpath ! org)
Date:       2012-12-20 16:26:12
Message-ID: bug-1245-30 () http ! icedtea ! classpath ! org/bugzilla/
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http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1245

            Bug ID: 1245
           Summary: Offline launching from a shortcut results in fatal
                    error
    Classification: Unclassified
           Product: IcedTea-Web
           Version: hg
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P3
         Component: NetX (javaws)
          Assignee: omajid at redhat.com
          Reporter: toni.spets at iki.fi
                CC: unassigned at icedtea.classpath.org

After a Web Start application has been successfully launched for the first time
and a desktop shortcut is created, launching without Internet connection
results in 'Fatal: Read Error: Could not read or parse the JNLP file.".

The error itself is more generic and there already exists a bug for another
thing that triggers it. However, this comes from a system that is not connected
to the internet at launch time.

The local JNLP file is fine, all JAR files are cached properly but IcedTea
insists on downloading the JNLP file over the network and when it fails it
fails bad.

Related bug is http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=906 which
talks about the JAR files that are already cached but are still redownloaded
after the JNLP file. The bugs can be merged if the underlying cause is the
same.

It would be nice if IcedTea could sense through DBus or something if there is
supposed to be an active connection and fail fast when there are not to improve
offline experience by having fast startup times. That would be completely
optional of course if NetworkManager is active which is the case for most
desktop Linux distributions today.

This is a complete blocker for usability and makes IcedTea completely unusable
offline which kills an important part of Web Start that makes it so useful as
an update channel for offline software.

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