Signed java applet is very slow with 1.4.2_06

We have an application which has a signed jar applets was working fine with Java Plug-in (JPI) version 1.4.1_02.
Due to customer requirement they want to run the same applet with JPI version 1.4.2_06, After JPI upgrade the applet is running slow.
I am not sure what sun has changed the security settings in 1.4.2_06. So, Can some one give there thoughts on why would it run slow because of JPI changes.
Thanks in advance.
Aj

Hi,
It is nothing to do with Signed applet.
If URL Connection 's setDefaultCacheUses is set to false then this is causing to run the Applet slow. As it require to download complete jar(if any) everytime.
From 1.4.1_02 (CachedJarURLConnection.class in jaws.jar):
public void connect()
throws IOException
if(!connected)
jarFile = JarCache.get(jarFileURL);
if(jarFile != null)
{�.
From 1.4.2_06 (CachedJarURLConnection.class in plugin.jar):
public void connect()
throws IOException
if(!connected)
if(getUseCaches())
jarFile = JarCache.get(jarFileURL);
if(jarFile != null)
{�

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Re: [Fwd: Java Applet IIOP Call-In with Release 3C--How dowe speed up d

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We have done exactly what you describe and have avoided the slow applet
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Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
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net
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hopping),
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unacceptable, even by internet standards. We have been using the
Visigenic Visibroker product as the ORB.
After doing some investigation, we've come up with several ideas to
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1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since
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file format and is used for aggregating many files into one. Although
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Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
download
time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

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http://developer.netscape.com)--just remember to initialize the ORB by
passing a reference to the current applet in orb_init() (so that you
invoke something like orb_init(this) [assuming you are extending
java.applet.Applet]). Pulling up the Java console within your web
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printed there the ORB is having problems).
Netscape has just implemented the applet caching schemes you describe,
so it probably shouldn't matter too much if you use another vendor's
ORB (we've done this with Iona's OrbixWeb). If you use ZIP files, they
have to be uncompressed, and I don't think that the browser will cache
them between browser sessions. Netscape 4.0 does seem to handle
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have other problems doing things like callbacks from Forte, etc.
If you want more detail on how it works, let me know and I can post some
examples.
Oh, one last thing: we are a consulting firm specializing in these kinds
of things :)
Bill
Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time
for
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INTERNET environment where 28.8K modems and multiple hops around the
net
are not uncommon. We dialed into our network at 28.8K (but no
hopping),
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unacceptable, even by internet standards. We have been using the
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1. Figure out how to use the Visigenic components (CORBA/IIOP class
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components
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than
opening a new connection for each piece. This greatly improves the
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functioning. The JAR format also supports compression, which reduces
the
size of the file and improves download time still further."
Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
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time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

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