©1996-2017 Roedy Green of Canadian Mind Products
To use the Java Web Start application on this page, you should have a recent Java installed,
preferably 32-bit JRE
(Java Runtime Environment
Click the orange launch button to start the Replicator and download the complete mindprod.com website, or update your local downloaded copy. To learn in
detail how the Replicator works, read the manual.
Java changed the way security works and the Replicator was running afoul of the new
rules. I have put in a temporary fix. When I get a Comodo code Signing certificate, I
will be able to handle the problem in a strictly kosher way. In the meantime, it should
be working again Thanks for your patience.
Java has changed the rules for signing of Java Web Start apps. I suspect it wants me to buy a code signing certificate. In the meantime, till I figure out what is going on,
The Replicator is down.
Java Requirements and Troubleshooting
is a signed Java Web Start application
to The Replicator.
You are welcome to install it on your own website.
If it does not work…
Get New Java
Get New Browser
Install or Repair JWS
- For this Java Web Start to work, you must click grant/accept/always run on this site/I accept the risk
to give it permission to write the downloaded files to your hard disk.
If you refuse to grant permission, the program may crash with an inscrutable stack dump
on the console complaining about AccessController.checkPermission.
- In the Java Control Panel security tab,
click Start ⇒ Control Panel ⇒
Programs ⇒ Java ⇒ Security, configure medium security
to allow self-signed and vanilla unsigned applets to run.
If medium is not available, or if Java security is blocking you from running the program,
configure high security
and add http://mindprod.com
to the Exception Site List at the bottom of the security tab.
- Often problems can be fixed simply by clicking the reload button on your browser.
- Make sure the Java in your browser is enabled in the security tab of the Java Control panel.
Click Start ⇒ Control Panel ⇒
Programs ⇒ Java ⇒ Security ⇒
Enable Java Content in the browser.
- This signed Java Web Start application
needs 32-bit or 64-bit Java 1.8 or later.
For best results use the latest 1.8.0_131 Java.
- You also need a recent browser.
- It works under any operating system that supports Java
e.g. W2K, XP, W2003, Vista, W2008, W7-32, W7-64, W8-32, W8-64, W2012, W10-32, W10-64, Linux, LinuxARM, LinuxX86, LinuxX64, Ubuntu, Solaris, SolarisSPARC, SolarisSPARC64, SolarisX86, SolarisX64 and OSX
- You should see the Java Web Start above looking much like this
If you don’t, the following hints should help you get it working:
- Optionally, you may permanently install the
Canadian Mind Products code-signing certificate
so you don’t have to grant each time.
- If the above Java Web Start appears to freeze-up, click
Alt-Esc repeatedly to check for any buried permission dialog box.
- If you have certificate troubles,
check the installed certificates
and remove or update any obsolete or suspected defective certificates.
The only certificate used by this program is mindprodcert2017rsa.cer.
- Even if JWS (Java Web Start) complains that the certificate used to sign this application is “invalid”, please click grant/accept anyway.
- If the above Java Web Start does not work, or if it fails to automatically install the latest versions, try running:
on the command line, then click show applications and delete any of the unworking or obsolete applications. Then click show resources and delete any of the unworking or obsolete resources. Then try launching the application again.
- If the above Java Web Start does not work, or if it fails to automatically install the latest versions, try uninstalling the JWS application in the control panel or uninstall it with:
on the command line, and try launching the application again.
- If reinstalling does not work, especially if JWS appears to be using an obsolete *.jnlp file stuck in cache, try bulk uninstalling all JWS apps with:
on the command line, and try launching the application again.
- If the error message says “program not found” the problem is likely a damaged association between *.jnlp files and the javaws.exe program. To learn how to repair the association, click the Repair button below.
- For Firefox, select open with: Java(TM) web start launcher.
- To ensure your Java is up to date, check with Wassup.
First, download it and run it as an application independent of your browser,
then run it online as an Applet to add the complication of your browser.
- If the above Java Web Start does not work,
check the Java console for error messages.
- If the above Java Web Start does not work, you might have better luck with the downloadable version available below.
- If you are using Mac OS X and would like an improved Look and Feel,
download the QuaQua look & feel
UnZip the contained quaqua.jar
and install it in ~/Library/Java/Extensions
or one of the other ext dirs.
- Upgrade to the latest version of Internet Explorer or another browser.
- Click the Information bar, and then click Allow blocked content. Unfortunately, this also allows dangerous ActiveX code to run. However, you must do this in order to get access to perfectly-safe Java Applets running in a sandbox. This is part of Microsoft’s war on Java.
- Try upgrading to a more recent version of your browser,
or try a different browser e.g. Firefox, SeaMonkey, IE or Avant.
- If you still can’t get the program working
click the red HELP button below for more detail.
- If you can’t get the above Java Web Start working
after trying the advice above and from the red HELP button below,
have bugs to report or ideas to improve the program or its documentation,
please send me an email at.
You can safely abort at any time. The Replicator will
pick up where you left off the next time you download. If the Replicator fails, try again in half an hour or so. There may have been
a glitch in uploading the files.
To read more about how the Replicator works, read the
The download covers definitions of Java terminology, essays on various Java related
topics and pointers to where you can get more information about Java related problems. It
also covers the entire mindprod.com website which discusses
political, environmental and religious issues. It includes the gay glossary, the Computer
Hardware Buyers’ Glossary, all the sound and image files.
I update the website many times a day and post the changes to the Replicator. You can stay as up to date as you want. You can run the
Replicator to update your local mirror copy as frequently
or as infrequently as you like. Whenever you run the Replicator, you will get just the net changes since your last
You must run the Replicator every time you want to get
the recent updates. It will not automatically schedule itself. After the first time, it
will be very quick unless there has been a massive update to all the headers and
Google Desktop will then
let you find anything in the local mirror with indexes that are only seconds out of
The Replicator downloads the website is in approximately
1 MB zipped chunks and automatically unpacks and decompresses them. On subsequent
visits, The Replicator automatically downloads just new
zips containing files that have net changed since your last visit.
If you have trouble with the download button, try starting Java Web Start manually
If the Replicator just sits there and does nothing and
you are using version 1.5.0 (build 1.5.0_07-b03). Fedora
Core 5 Linux, if you upgrade to Java version 1.6 it will work.
If you have trouble, email me at
or arrange a phone call and I will
talk you through the setup. This software has been working fine for years.
It will take a long time (still under 10 minutes for ADSL (Asymmetric Digital Subscriber Line technology)
) for your first download (~85 MB broken into 1 MB pieces)
but subsequent ones should be rapid.
You can safely abort at any time. The Replicator will
automatically pick up where you left off the next time you download.
Why download with the Replicator instead of browse
- If mindprod.com goes down temporarily or permanently,
you will still have a copy.
- You can browse your local copy more quickly than the web copy. You will find the
Google AdSense ads will drive you nuts offline trying to fetch an ad from the
unreachable Google server. I have not yet figured out how to suppress the ads
automatically when you are viewing offline. However, you can suppress them by turning
this way too.
- You can use your local search tools to find things.
- You are providing yet another level of backup to foil those who would destroy the
mindprod.com site. Because the material is constantly
changing and won’t stay up to date, please don’t repost pages from my
website unless my site disappears completely. The web is littered with out-of-date
copies of my material that people stumble on. If you want to host a complete mirror
site that I will keep up to the minute, please send me an email at
so we can work out the details.
- With the Replicator, your local copy can now be just
as up-to-date at the uncompressed website HTML (Hypertext Markup Language)
with very little overhead.
See the manual to learn how the
Replicator works and how you might use it for your own
websites or bulk file distribution problems.
To get best performance from the Replicator
, you should tweak/tune/configure/adjust your TCP/IP
downloading. This will speed up all your
Internet connections and downloads, not just the Replicator
, perhaps by as much as 100
Try any or all of these tuning tools to see which works best for you: TCP Optimizer
Beware. The Google web accelerator proxy drastically slows down
Java Web start unless you configure jawaws.exe to use a direct
Because of a limit inherited from MSDOS and the PKZIP format that the Replicator uses to distribute files, the reconstituted files will have
timestamps accurate only to within 2 seconds of the original. The timestamps reflect
local time on the source, not UTC (Coordinated Universal Time/Temps Universel Coordonné) time. This
will cause no problems with the mindprod.com files since the timestamps are only used to
give you an idea of when a file was last changed.
To see about getting the Replicator to mirror your own
website or distribute your own set of files, click here.
Download information for The Replicator
❘ browse source repository
for the current version of The Replicator.
Efficiently replicates a set of files to your clients and keeps them up-to-date.
for The Replicator
Java source, compiled class files, jar and documentation to run on your own machine as a Java Web Start application.
Runs on any OS that supports Java e.g. W2K, XP, W2003, Vista, W2008, W7-32, W7-64, W8-32, W8-64, W2012, W10-32, W10-64, Linux, LinuxARM, LinuxX86, LinuxX64, Ubuntu, Solaris, SolarisSPARC, SolarisSPARC64, SolarisX86, SolarisX64 and OSX.
First install the most recent Java.
To install, extract the zip download with WinZip,
(or similar unzip utility) into any directory you please,
often J:\ — ticking off the
use folder names option.
To check out the corresponding source from the Subversion repository, use the TortoiseSVN repo-browser to
access replicator source in repository with [Tortoise] Subversion client on wush.net/svn/mindprod/com/mindprod/replicator/.
To run the JWS application, modify the jnlp file to look in the right place for its files, then type:
adjusting as necessary to account for where the jar file is.
download ASP PAD XML program description for the current version of The Replicator.
. Full source included.
You may even include the source code, modified or unmodified
in free/commercial open source/proprietary programs that you write and distribute. Non-military use only.