Re: Servlets Using JT400.zip Java Toolbox

Eric,

The tool kit can run in a browser applet.  That's how come it has
references to the browser classes. Normally, when it is running as in a
servlet, it never references the classes, so it doesn't make any difference
whether they are available.... but when you Optimize at 40, it tries to
load them...

Nick




Eric Merritt <cyberlync@yahoo.com>@midrange.com on 08/03/2000 02:23:10 PM

Please respond to JAVA400-L@midrange.com

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Subject:  Re: Servlets Using JT400.zip Java Toolbox


Correct me if im wrong but servlets have no direct
interaction with the browsers. No code runs on the
client and the servlets produce only html. So were
does the ie or netscape classes come in?
--- Nick_Vrtis@amway.com wrote:
>
> If you optimize to 40, part of the optimization is
> to load all the classes
> referenced.  This causes problems with the toolkit
> because it references
> some Netscape classes, and some IE classes.
> Depending on which brower you
> are running, or if you are running batch, one of all
> of these classes will
> not be present, and you get this strange class not
> found message, even
> though you know you will never reference it.
>
> I don't expect that the same problem would occur in
> customer developed
> code, unless you had code paths that references
> optional classes that might
> not always be in the classpath.
>
> Nick
>
>
>
>
> "Tom Heiber-Cobb"
> <heibercobb@mailbag.com>@midrange.com on 08/02/2000
> 06:47:32 PM
>
> Please respond to JAVA400-L@midrange.com
>
> Sent by:  owner-java400-l@midrange.com
>
>
> To:   <JAVA400-L@midrange.com>
> cc:
>
> Subject:  Re: Servlets Using JT400.zip Java Toolbox
>
>
> Lee,
>      My "not that experienced" 2 cents worth: If
> it's possible for your
> shop to
> upgrade to V4R4 of OS/400 that would be a plus.
> Also, I think that will
> bring you to a more current release level of
> WebSphere. The 1.1 release is
> growing old.
>      As far as Eric's comments, I was under the
> impression that when using
> CRTJVAPGM, one should "settle" for optimization
> lever 30. I can't recall
> the circumstances (sorry) but there was something
> about optimizing to 40
> that had the opposite outcome than expected. Maybe
> someone else can
> illuminate that one.
>      Did you run the jt400.zip (or .jar) file
> through CRTJVAPGM. I know in
> earlier releases of the toolbox this was not done by
> default so you might
> consider that. Be prepared to wait a while while
> this runs. As Eric
> suggested, this is a SBMJOB all the way. There's a
> whole of classes in the
> toolbox to be processed. Again, as I remember (and
> this came from the
> Partners in Development folks in Rochester) you
> should optimize to 30.
> I'd love to hear some other opinions/ideas on this.
> Good luck,
>      Tom H-C
>
> ----------
> From: Lee Bircham <lee.bircham@socl.com>
> To: JAVA400-L@midrange.com
> Subject: Servlets Using JT400.zip Java Toolbox
> Date: Wednesday, August 02, 2000 9:20 AM
>
> Hi,
>
> I have written a few servlets that use the record
> level access classes in
> the AS400 Toolbox For Java (JT400.zip). These are
> currently small servlets
> that take a single HTML form parameter (a container
> number) and access a
> single logical file on the AS400 to display all of
> the records for that
> container. The servlets work very well and are very
> quick after they have
> been called for the first time (approx 1-2 sec). The
> problem that I have is
> that the first time a servlet is called it can take
> up to 2 minutes to load
> and for the output to be displayed in the browser.
> Has anyone else had this problem when using the
> record level access
> classes?
> Have you any solutions?
> The OS we are on is V4R3 and Websphere version 1.1
> The servlets are in the
> /QIBM/ProdData/IBMWebAS/servlets/ folder.
>
> Thanks,
> Lee.
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