JCo Eror

Hello to all,

I've deployed SAP JCo 2.x on my NW 7.01 System.

After startup JCo-Connections work fine. After redeploying my application I get the following error:

java.lang.ExceptionInInitializerError: JCO.classInitialize(): Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'
JCO.nativeInit(): Could not initialize dynamic link library sapjcorfc [Native Library /home/sltadm/sapjco/libsapjcorfc.so already loaded in another classloader]. java.library.path [/usr/j2se/j2sdk1.4.2_19/jre/lib/sparcv9/server:/usr/j2se/j2sdk1.4.2_19/jre/lib/sparcv9:/usr/j2se/j2sdk1.4.2_19/jre/../lib/sparcv9:/usr/sap/SLT/DVEBMGS01/exe:/usr/sap/SLT/DVEBMGS01/exe:/usr/sap/SLT/DVEBMGS01/exe:/opt/SMAW/lib:/opt/EMCpower/lib:/opt/VRTSvcs/EMC/lib:/usr/sap/SLT/SYS/exe/run:/oracle/client/10x_64/instantclient:/usr/lib:/usr/sap/SLT/DVEBMGS01/j2ee/os_libs:/usr/sap/SLT/DVEBMGS01/exe:/usr/sap/SLT/DVEBMGS01/exe:/usr/sap/SLT/DVEBMGS01/exe:/opt/SMAW/lib:/opt/EMCpower/lib:/opt/VRTSvcs/EMC/lib:/usr/sap/SLT/SYS/exe/run:/home/sltadm/sapjco:/oracle/client/10x_64/instantclient:/home/sltadm/sapjco]

If I restart the SAP-system everything works fine again?

What's my fault

Regards

Christian