Java WebStart is coming with 1.4. Here's a link to a descriptive
article, followed by a series of highlights taken from it.
http://www.javaworld.com/javaworld/javaone00/j1-00-webstart.html
Highlights:
--browser not needed to run the apps. Can
be installed as icons on the desktop
--application-server management package
for client apps.
--a client-side helper, like real-audio
--replaces applets, overcomes security
restrictions without dropping security
--designed for intranets, where the security
issue is moot. (can also sign applets, but
the process is fraught with difficulty, and
the mechanisms are browser-dependent.
--avoids the incompatible JVM/browser JVM
not up to date issues
--application-caching, incremental updates,
and quick-start capability (start with
one jar file, load others on demand)
How it works:
--works on MIME type application/jnlp and
file extension .jnlp.
--install WebStart once, it runs any Java
app packaged as a jnlp
--how to restrict to YOUR apps?
--.jnlp file points to the jar file and
describes the security permissions that
are required to run it
--installing WebStart also installs a JVM
Note:
I'm not *sure* this is useful for us. For an intranet,
it's great, because there are no security concerns to worry
about. But for general use, putting WebStart on your system
would seem to give free rein to any Java app that gets loaded.
On the other hand, using the existing certificate mechanism
might surmount that problem. The result would be an
interesting (and efficient) way to put serious application
capability on the client side. (For a possibly even
more interesting mechanism, see the Pluglet API Netscape
put together that allows browser plugins written in Java.)
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