RE: [flexcoders] URGENT Problem on Flex installed on BEA WebLogic

Carson Hager Fri, 16 Sep 2005 13:26:53 -0700

My pleasure. The only impact will be a small increase in memory utilization by the server at startup. Basically, appservers like WLS like to use hierarchical classloaders so that classes which are shared by multiple web applications are not loaded for each web app. By using a shared classloader, there is savings in memory and ( to a small degree ) runtime performance due to the need to only load/verify the class a single time. The reality is that these things are basically negligible. The kicker with hierarchical classloaders is exactly what you're seeing here...the need to override at a child level. I'm sure you'll find this to be a good solution.

Carson

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Carson Hager
Cynergy Systems, Inc.
http://www.cynergysystems.com

Email: [EMAIL PROTECTED]
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From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Towes (New Toronto Group)
Sent: Friday, September 16, 2005 1:22 PM
To: flexcoders@yahoogroups.com; flexcoders@yahoogroups.com
Subject: RE: [flexcoders] URGENT Problem on Flex installed on BEA WebLogic

Thanks, Carson -

We're looking into the impact of this. It might be the best solution. I'll let you (and the list) know.

kev.

Kevin Towes, Sr. Consultant
New Toronto Group, [EMAIL PROTECTED]
Office: 905-897-7790 x4018 Mobile: 416-882-4445
[onRemote]

From: "Carson Hager" <[EMAIL PROTECTED]>
Sent: Friday, September 16, 2005 12:42 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] URGENT Problem on Flex installed on BEA WebLogic

Kevin,

This is a classloader issue. Check out prefer-web-inf-classes in the following URL to turn off the default behavior of the WLS classloader to allow for classes in web apps to be loaded in preference of the server level classloader.

http://e-docs.bea.com/wls/docs81/programming/classloading.html

Carson

From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Towes (New Toronto Group)
Sent: Friday, September 16, 2005 12:29 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] URGENT Problem on Flex installed on BEA WebLogic

Hey Gang -

We're having a bit of an urgent issue with a Flex installation on BEA Weblogic Portal Server. I know there were some threads a while back on this issue, so I'll explain it below.

The issue relates to the fop.jar file that is used in the BEA Portal Server (WebLogic). The BEA jar file overrides the FLEX package that parses css . The manifest file included in the fop.jar defines "batik.jar" in the class path. The Batik.jar file installed with BEA is an older version then is required by FLEX to parse CSS. (css.locater.parser)

We've found information on FlexCoders to remove the fop.jar file from BEA, which works, but is not a solution that our customer is comfortable with.

Does anyone know anything about this, or better, how to get around the issue?

I've tried going through "official" Macromedia Support on this, and they're timing for support doesn't fit our customer, so here's a chance for the FlexCoders list to shine.

Who ever helps me solve it gets a couple drinks on me at MAX in a couple weeks.

Kevin Towes.

Kevin Towes, Sr. Consultant
New Toronto Group, [EMAIL PROTECTED]
Office: 905-897-7790 x4018 Mobile: 416-882-4445
[onRemote]

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RE: [flexcoders] URGENT Problem on Flex installed on BEA WebLogic

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