Re: Multiple JVMs on an AS/400?

["Patrick Townsend" <patownsend@xxxxxxxxxxxxxx>]

Joe,

Many thanks!
Patrick


----- Original Message -----
From: "Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Tuesday, March 18, 2003 6:08 AM
Subject: RE: Multiple JVMs on an AS/400?


> > From: Hall, Philip
> >
> > I'm not sure if that's enough... won't you need the
> > -Xbootclasspath too ? to point the Java application loader to an
> > older set of JRE classes/jar files (i.e. rt.jar) ?
> >
> > Of course, it's probably safer if you invoke the 'java.exe' from
> > the JRE of the version you want to run at instead...
>
> That's on the workstation, Phil.  On the AS/400, the -D is all that is
> needed.  Try it sometime.  Just run the following from QShell:
>
> java -Djava.version=1.3 version
> java -Djava.version=1.4 version
>
> See what happens.  My understanding is that all versions of the OS/400
java
> executable will check the java.version setting prior to doing anything
else.
>
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