Date:         Mon, 4 Nov 2002 15:20:15 +0000
Reply-To:     CICS List <CICS-L@LISTSERV.UGA.EDU>
Sender:       CICS List <CICS-L@LISTSERV.UGA.EDU>
From:         Paul Cooper <PCOOPER@UK.IBM.COM>
Subject:      Re: JAVA UNDER CICS
Content-type: text/plain; charset=us-ascii

Reginaldo,

under CICS TS 1.3 the byte code binder is a lot faster than the JVM and
therefore is the recommended option. However, it does have some fairly
severe limitations with respect to which Java APIs you're allowed to use.
So long as the limitations are not a problem then the native compilation is
best. If you need a full Java environment then you will have to use the
JVM. Unfortunately this implies starting an entire JVM for each Java based
task and throwing it away again afterwards. Which is very slow.

This issue is addressed in CICS TS 2.2. If at all possible I would
recommend using TS 2.2 for Java in CICS.

Paul Cooper,
IBM Hursley.