Jikes is a Java compiler that outputs byte-codes.  It doesn't change the
JVM, and doesn't have anything to do with whether the JVM could use LPA.

On Jan 2, 2008 11:55 AM, McKown, John <[EMAIL PROTECTED]> wrote:

> > -----Original Message-----
> > From: IBM Mainframe Discussion List
> > [mailto:[EMAIL PROTECTED] On Behalf Of Kirk Wolf
> > Sent: Wednesday, January 02, 2008 11:48 AM
> > To: [email protected]
> > Subject: Re: The Line, the Bar, Java, LPA, etc.
> >
> >
> > True: A "compiled Java application" consists of .class files
> > or .jar files
> > (zip files) containing
> > .class files.   The .class files contain byte codes which can
> > be interpreted
> > by the Java virtual machine (JVM).
> >
> > But:  all modern Java virtual machines includes a just-in-time (JIT)
> > compiler, which dynamically
> > translates byte codes for frequently used methods into native machine
> > instructions.
> > So, everyone who insists that "Java is slow" because it is
> > interpreted....
> > look for other reasons :-)
> >
> > So, it is interesting to ask whether the machine-code created
> > by JIT could
> > be in LPA.
> > The current JVM does not support this, since this machine code is
> > dynamically created and not really shareable.
> >
> > Kirk Wolf
> > Dovetailed Technologies
>
> Do you know if IBM has ported their "jikes" Java compiler to z? If so, I
> wonder if the output from that could be LPA resident.
>
> --
> John McKown
> Senior Systems Programmer
> HealthMarkets
> Keeping the Promise of Affordable Coverage
> Administrative Services Group
> Information Technology
>
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