Robert,
This reminds me of a situation I ran into 25 years ago involving
assembler and COBOL. Granted, COBOL and Java are different
environments, but there may be enough similarity in the issues to be
relevant.
We had an assembler main program that called a COBOL subroutine
repeatedly. It was chugging along just fine until
LE maintenance showed a large spike in CPU time within LE library routines,
as shown by Strobe.
It seemed as though the LE environment was constantly being created and
torn down. I did look into solutions, such as using CEEPIPI, but this
program
was a major CPU consumer in this shop and we needed a quick solution. The
solution I proposed and was implemented
was to create a new main program, written in COBOL, that called the former
assembler main program. That way the new main program
established the LE environment that persisted until the program terminated.
So, ALC calling COBOL changed to COBOL calling ALC calling COBOL.
In your case: Java calling COBOL changed to COBOL calling Java calling
COBOL.
I have never used Java, so this is somewhat a shot in the dark.
I should have created an ETR on IBMLINK about the increased CPU
overhead, but did not bother since we had a circumvention.
Allan
On Tue, Jul 11, 2023 at 5:58 PM Crawford Robert C (Contractor) <
000004e08f385650-dmarc-requ...@listserv.ua.edu> wrote:
> We're interested in invoking Java from assembler in batch. Specifically,
> we'd like to create a persistent Java environment we can call repeatedly
> and terminate when we're through.
>
> Has anyone done this? Is the LE pre-initialization module CEEPIPI worth
> exploring?
>
> Thanks.
>
> Robert Crawford
> Abstract Evolutions LLC
> (210) 913-3822
>
>
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