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Resolved setting runtime JRE Powerbuilder 2019

  1. How-to
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  1. Luca Militello
    Luca Militello
  2. PowerBuilder
  3. Tuesday, 19 July 2022 15:05 PM UTC

hi,

i'm using PB2019 and i have a problem with the JVM.

Is it possible to set the JRE runtime when I call the JVM from executable?
I need to set a particular JRE in an application regardless of the one set in the PC where I am running the application. The idea is to put a "JRE" folder with all the files needed for that JRE version, in the same folder where the executable is present. Then I would need to point to that version of JRE bypassing, if any, the one installed on the PC. Is it possible to do such a thing? I was able to do this only by setting the environment variable "JAVA_CLASSPATH" and making it point to the version that interests me. But I don't want to change the variable on the PC because it could be used by other applications.

 

Thank you very much!

 

Luca

  1. Java
  2. PowerBuilder (Appeon)
  3. PowerBuilder Runtime
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Accepted Answer
Roland Smith
Roland Smith Accepted Answer Pending Moderation
  1. Tuesday, 19 July 2022 23:52 PM UTC
  2. PowerBuilder
  3. # Permalink

The Windows API function SetEnvironmentVariable changes the copy of the environment belonging to the current process:

https://docs.microsoft.com/en-us/windows/win32/api/processenv/nf-processenv-setenvironmentvariablew

 

 

Comment
Miguel Leeuwe
  1. Miguel Leeuwe
  2. Wednesday, 20 July 2022 08:12 AM UTC
As to extra clarify what Roland is saying: Doing this won't affect any other running applications. It's only for the session / process that your powerbuilder application is running in at that moment.
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Responses (2)
Luca Militello
Luca Militello Accepted Answer Pending Moderation
  1. Thursday, 21 July 2022 07:59 AM UTC
  2. PowerBuilder
  3. # 1

Yes, it seems to work fine!

Thank you

 

Luca

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