topic What changes require a restart? in Windchill Customization

What changes require a restart?

AG_10348570 — Wed, 27 Aug 2025 00:22:56 GMT

I am using Windchill PDMLink Release 12.0 and Datecode with CPS 12.0.2.13

How would I know whether or not a change to code in my codebase requires a restart of windchill to deploy? For instance, some customizations/changes can be deployed when windchill is up and will take effect and others require windchill to be down. So how do I tell whether or not deployable code requires a restart?

Re: What changes require a restart?

VladimirN — Wed, 27 Aug 2025 09:11:44 GMT

Similar discussion - "Is it possible to modify the code and without a restart of method server see the new reflected changes?": https://community.ptc.com/t5/Windchill-Customization/Is-it-possible-to-modify-the-code-and-without-a-restart-of/td-p/52028

Re: What changes require a restart?

avillanueva — Wed, 27 Aug 2025 11:37:20 GMT

Generally yes, code changes will require restart since the class might have been loaded into the JVM memory already. There are some exceptions.

https://www.ptc.com/en/support/article/CS35160?source=search That article talks about property files changes (like site.xconf changes). If the classes are new and not invoked yet, likely no restart is needed. If you are updating existing classes with modification, I would restart. If you are doing JSP changes, you can set tomcat to run in development mode. Any modifications will cause the JSP to be recompiled which is handly not having to clear work cache all the time.

https://www.ptc.com/en/support/article/CS30396?source=search

Re: What changes require a restart?

HelesicPetr — Fri, 29 Aug 2025 10:13:27 GMT

Hi @AG_10348570

If you use an IDE and debug mode for coding, your ide is connected to the method server.

Each compilation tries to deploy the modification to the vm memory and a change is instantly applied but there are several changes that require file class deploy and restart.

Adding a public method in the class
Removing a method in the class
Renaming a method in the class

All this changes need the restart

With following information the change is applied

With following information restart is needed

PetrH

Re: What changes require a restart?

vnamboodheri — Mon, 08 Sep 2025 06:05:54 GMT

Hello @AG_10348570,

It looks like you have some responses from some community members. If any of these replies helped you solve your question please mark the appropriate reply as the Accepted Solution.

Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.

Thanks,
Vivek N.
Community Moderation Team.