Re: applets, applications and static declarations

Andrew Thompson <>
Fri, 22 Jan 2010 14:43:39 -0800 (PST)
On Jan 22, 9:15 pm, Roedy Green <>

On Thu, 21 Jan 2010 23:30:10 -0800 (PST), Andrew Thompson
<> wrote, quoted or indirectly quoted someone
who said :

Launch them both using JWS, and implement the
SingleInstanceService/Listener. I have a demo
at <>

I have not explored JWS for Applets yet. What does it buy you?

Are you referring to free-floating or embedded?
As a 'for instance' of the differences, the JNLP
SingleInstanceService would work well with
free-floating applets, but I do not know what it
would do with embedded applets should the user
choose to open two browser tabs showing the
exact same applet page.

I would guess the biggie would be automatic access to the proper jar
containing the JNI code for the particular platform. That is very
difficult to do with a raw Applet.

Is it possible to add a binary to an embedded
applet at run-time? I understand that an applet
can use a native if it is already on the system
path for natives, but that would require a trusted
applet to unpack the native, put it in the right
binary path, then restart the VM (somehow) to
refresh the JREs knowledge of the natives available.
(Wouldn't it? I really have little experience
deploying embedded applets with natives.)

Andrew T.

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