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AG_103485701-Visitor
1-Visitor
August 27, 2025
Solved

What changes require a restart?

  • August 27, 2025
  • 4 replies
  • 376 views
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?
    Best answer by HelesicPetr

    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

    HelesicPetr_0-1756462284807.png

    With following information the change is applied

    HelesicPetr_3-1756462351659.png

    With following information restart is needed

    HelesicPetr_2-1756462336894.png

    PetrH

    4 replies

    V
    24-Ruby III
    VladimirN24-Ruby III
    24-Ruby III
    August 27, 2025

    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 

    avillanueva
    23-Emerald I
    avillanueva23-Emerald I
    23-Emerald I
    August 27, 2025

    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

     

      HelesicPetr
      22-Sapphire II
      HelesicPetr22-Sapphire IIAnswer
      22-Sapphire II
      August 29, 2025

      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

      HelesicPetr_0-1756462284807.png

      With following information the change is applied

      HelesicPetr_3-1756462351659.png

      With following information restart is needed

      HelesicPetr_2-1756462336894.png

      PetrH

      V
      vnamboodheriCommunity Manager
      Community Moderator
      September 8, 2025

      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.

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