FWIW, the RUNJVA CL command can run Java apps and could probably be substituted for QSH. I haven't used RUNJVA since 7.1 (or earlier), but when I did it started a new JVM for every call.

We're an RPG shop, so I'd just write an RPG program that would call all the Java apps, and that would reuse the same JVM. I can't say about an OS command/API, since I've never needed one.

HTH



-----Original Message-----
From: Madie [mailto:bpcs.erp@xxxxxxxxx]
Sent: Monday, September 03, 2018 2:46 PM
To: Java Programming on and around the IBM i <Java400-l@xxxxxxxxxxxx>
Subject: Prevent JVM from starting again and again

Hi Group,

I am calling Java class in a CL program using QSH command... it seems its starting JVM for each call which is not so good for performance, is there a way to prevent this so JVM is started once and then all future call is handled by started JVM instance? Also, when CL is called interactively it will mandatory ask for ENTER to close the QSH session, can this be prevented? Appreciate any help !

Regards,
M


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