Comments on: Upgrading the ColdFusion JVM – on Linux and Windows

By: Kerry Coyne

Kerry Coyne — Tue, 12 Jan 2010 19:29:25 +0000

I am running coldfusion MX 7 and was wondering what version of Java is supported on this. I currently have 1.4.2_12 and see they have a version 19 out there, but can we run a new version than 1.4? Any help would be appreciated.

By: Ryan

Ryan — Thu, 24 Sep 2009 17:21:16 +0000

Upgrading is no different no matter what version you are currently at. Install your new JVM into a new directory, then change your jvm.config file to reference it.

By: Lance

Lance — Thu, 24 Sep 2009 15:58:54 +0000

How do I go about upgrading the JVM for coldfusion when I have a later version (1.5) installed on my system. Do I just install over the 1.5? Could I just copy the installation folder without an install so that I don't overwrite the 1.5?

By: LoadWB

LoadWB — Thu, 26 Mar 2009 07:45:36 +0000

For those still running CF5 (who is?!) I just upgraded to JRE 1.6 Update 12 and it caused the ColdFusion Application service to continually crash. I back-peddled to 1.5 Update 17 and it works fine. When more time is available I will try each release of 1.6 up until it fails.

By: AP

AP — Sun, 15 Mar 2009 01:00:52 +0000

Thanks!!! I searched for such a long time for an article that is this clear!

By: Kishor

Kishor — Wed, 11 Mar 2009 19:22:30 +0000

1. Installed 1.4.2_11 on my desktop
2. Stop the server
3. Replace "jre" directory on server with jre (1.4.2_11) on my desktop
4. Start the server

Everything fine. DST issue gone!!

Thanks everybody!

I'm new to ColdFusion, this is the Excellent article which made my life so easy and simple.
Thanks again for everything!

By: Kishor

Kishor — Tue, 10 Mar 2009 20:20:28 +0000

Thanks Ryan!
I'll try with jre copy approach tonight.
I did try to update jvm.config to point Java 6 which is already installed for other application on that box, but CF MX7 did not start.

Yes, I'm scared to install 2 versions of Java because other app (which is the main app) will not work below Java 6 and we have users on those servers 24/7 and at least 350 users.

I'll post my update here.
Again Thanks a lot for your quick response, appreciate it.

-Kishor

By: Josh Knopp

Josh Knopp — Tue, 10 Mar 2009 20:17:05 +0000

Kishor, I installed 1.4.2_11 today on my local machine and only had to restart CF, versus booting the box. Trying this in a production environment may not be for the faint of heart, but I thought I'd share my experience, for what it's worth. Good luck!

By: Ryan Stille

Ryan Stille — Tue, 10 Mar 2009 19:57:33 +0000

Kishor, you don't need to reboot after installing a new JVM. You WILL need to restart ColdFusion though. As far as installing two different versions of Java at once, I can't help you because I've never done that. I don't think it would be much of an issue, but I would do it on a test box first. I think copying over an installed SDK directory from another server would probably work fine, too. It should be safe to try it. At worst case CF won't come back up and you'll need to edit jvm.config to point back to the original JVM and then start again.

By: Kishor

Kishor — Tue, 10 Mar 2009 18:18:16 +0000

I've CF MX7 Server with JVM 1.4.2_05, so now from yesterday we see 1 hr difference (back).
I'm planning to follow the instruction to move to 1.4.2_11.

Platform: Windows 2003
Server: MX7 (Java 1.4.2_05 is packaged within it)
Installed Java: Java 6 – for the other major app running on same boxes.

1. I know once I install 1.4.2_11 I need to boot the box
Problem: I'm NOT allowed to reboot the box.

So if I install 1.4.2_11 on other machine and copy the jre directory to prod box and then change the configuration to point to this jre directory, does it works?

OR do I need to follow the Hot Fix patch.

I prefer not to install 1.4.2_11 on OS along with Java 6, so How to put this 1.4.2_11 in the CF server MX7?

Thanks for all your time and advice.

Kishor