[Sorry for the re-send; I forgot to change the Reply-to]
Walt Farrell wrote:
On Wed, 2 Jan 2008 09:00:42 -0700, Paul Gilmartin <[EMAIL PROTECTED]>
wrote:
Can 64-bit Java applications reside above the Bar? I'd assume they
could provided they contain only interpreted code, not executable.
Can 31-bit Java applications reside in LPA? I'd assume they could
if LPA doesn't require that modules contain some executable code.
The LOAD SVC could find the CSECT address for the interpreter;
the saving of sharing frequently used modules could be significant.
I think you're using some confusing terminology, gil. I would say that a
Java application is purely a data file containing the byte codes that
represent the Java program. The interpreter is purely an executable file,
which reads its data (the application class file with the byte codes) and
interprets it.
I think he understands that; but I see him as asking
the question: can the Java bytecode be loaded above
the bar and the Java interpreter run the bytecode
located thusly. It's an excellent question, and I'd
be interested in getting the answer too: can the
64-bit JVM access bytecode stored above the bar?
As such, it does not make sense (to me) to talk of having a Java application
in LPA.
Rephrase: can you load a CSECT only containing
read-only data (which happens to be Java bytecode)
in the LPA.
However, I believe you could have the interpreter in LPA if you
wanted.
That's also a question of interest.
(Though I will also admit I'm not an expert in that area.)
Well, neither are we, thus we ask.
Kind regards,
-Steve Comstock
The Trainer's Friend, Inc.
303-393-8716
http://www.trainersfriend.com
z/OS Application development made easier
* Our classes include
+ How things work
+ Programming examples with realistic applications
+ Starter / skeleton code
+ Complete working programs
+ Useful utilities and subroutines
+ Tips and techniques
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