[opencms-dev] Re: blank screen instead of OpenCMS workplace loginFIXED

[Olli Aro]

Yes class loading problems are always fun :)

To start with, you probably want to remove servlet-api.jar and jsp-api.jar
from your module, since those are provided already by the application
server. So there is a change that your libraries would overwrite the newer
ones on your application server.

Regarding log4j. There is a newer version already part of the OpenCms
distribution, so you don't really need that one either. I have never tried
to load two different versions of the same library, but is it probably pot
luck which one gets loaded first if you do...

Regards,

Olli

-----Original Message-----
From: opencms-dev-bounces at opencms.org
[mailto:opencms-dev-bounces at opencms.org] On Behalf Of Bill Edwards
Sent: 04 December 2006 15:57
To: opencms-dev at opencms.org
Cc: Hongwu Zhang
Subject: [opencms-dev] Re: blank screen instead of OpenCMS workplace
loginFIXED

I fixed this problem by removing a module that a coworker had  
installed that included some libraries.  My follow-on question is  
whether any of the following libraries conflict with OpenCMS such  
that their presence causes the OpenCMS workplace login to fail with a  
blank screen:

*   servlet-api.jar
*   log4j-1.2.8.jar
*   jsp-api.jar
*   edbc.jar

(edbc.jar has the OpenIngres 2.x JDBC drivers).  Thanks. -- Bill Edwards

On Dec 1, 2006, at 5:33 PM, Bill Edwards wrote:

Hi all--I am currently getting a blank screen instead of the OpenCMS  
workplace login screen.  What are some causes and remedies for that?   
If I can't get to the bottom of this,  I am probably going to clean- 
install OpenCMS.  I am currently running 6.2.1--I will probably  
upgrade to 6.2.3 if I re-install.  Any hints would be appreciated.   
Thanks!

-- Bill Edwards


-- Bill Edwards, Senior Programmer
    Frontier Science Technology Research Foundation/
    Eastern Cooperative Oncology Group
    wse at jimmy.harvard.edu




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