I do not have any issues with what is contained within the any of the
given content of the Xerces libraries. I do not have any issues with the
fact that this version of Xerces will execute with any version of
anyone's JRE. 

My question is "how well"???

Dave 

David B. Crain
Consultant Software Engineer
Editorial & Conversion Systems
Lexis-Nexis
Phone: 937-865-6800 ext. 56303

-----Original Message-----
From: Jacob Kjome [mailto:[EMAIL PROTECTED] 
Sent: Monday, October 02, 2006 1:04 PM
To: [email protected]
Subject: Re: I have a couple of questions concerning Xerces and
Performance....

Quoting "Crain, David B. (LNG-DAY)" <[EMAIL PROTECTED]>:
>
>
> 1)       What version of the JDK/SDK was used to build the latest
> version of Xerces jars. I am referring to the following download site:
> http://www.apache.org/dist/xml/xerces-j/

Did you try looking at the xercesImpl.jar MANIFEST.MF?  It says...

Created-By: 1.3.1 (IBM Corporation)

Not sure about the rest below.  However, I don't think the JDK used to
compile
the code should have much (any?) effect on performance at runtime.  I
suppose
newer compilers might optimize the bytecode a little better.  In any
case,
Xerces is compiled with a lowest-common-denominator JDK so that (I
presume. 
Note I'm not a Xerces project team member, so this is my own $0.02)...

1. It can run in the earlier JDK's as well as the newer ones.  Setting
the
"target" and "source" compile options are another way to do this, but
that
doesn't solve #2...
2. Newer API's aren't accidentally introduced.


Jake

>
> 2)       Has anyone ever done a performance test between different
> versions of the JDK/SDK, like:
>
> a.       Sun 1.4.2 vs. IBM 1.4.2???
>
> b.       1.4.2 vs. 1.5.0??? (I would assume performance differences
> here)
>
> 3)       Is there a website where this has been documented???
>
>
>
> Dave
>
>
>
> David B. Crain
> Consultant Software Engineer
> Editorial & Conversion Systems
> Lexis-Nexis
> Phone: 937-865-6800 ext. 56303
>
>
>
>




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