Problem with WebSphere 5.1 and JCO

[former_member799935]

I developed an application that connects to a SAP-System.

The code usually works fine.

When I stop and start the application in Websphere, the following error message appears:

WARNING) java.lang.ExceptionInInitializerError: JCO.classInitialize(): 
Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'

Native Library C:WINNTsystem32sapjcorfc.dll already loaded in another classloader

at com.sap.mw.jco.JCO.<clinit>(Unknown Source).null(Unknown Source)

If anybody came across this problem before, please let me know.

[Vlado · Accepted solution]

Hi Andreas,

Please have a look at SAP Note 542175.

Best regards,

Vladimir

[former_member799935 · Accepted solution]

After my collegue gave me acces to that note we could solve the problem

(put sapjco.jar in to the servers classpath instead of the application)

Thanx and best regards

Andreas

Message was edited by: Andreas Schmidt

[Former Member · Accepted solution]

Hi

I am facing the same probelm.

can you tell me which is the servers classpath starting from usr/sap/.....

Thanks & regards

Ashutosh

[Vlado · Accepted solution]

Hi Ashutosh,

See and also the other posts in that thread.

HTH,

Vladimir