Java.lang.NoClassDefFoundError:Couldnot initialize class com.sap.mw.jco.JCO

Question

Hi,
I am having an issue with SAP adapter configuration. It throws below error in log files :
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 [no sapjcorfc in java.library.path]. java.library.path [opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/lib/i386/client:/opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/lib/i386:/opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/../lib/i386:/opt/apps/Oracle/patch_wls1032/profiles/default/native:/opt/apps/Oracle/patch_jdev1111/profiles/default/native:/opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/lib/i386/client:/opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/lib/i386:/opt/apps/Oracle/jdk160_14_R27.6.5-32/jre/../lib/i386:/opt/apps/Oracle/patch_wls1032/profiles/default/native:/opt/apps/Oracle/patch_jdev1111/profiles/default/native:/opt/apps/Oracle/wlserver_10.3/server/native/linux/i686:/opt/apps/Oracle/wlserver_10.3/server/native/linux/i686/oci920_8:/opt/apps/Oracle/wlserver_10.3/server/native/linux/i686:/opt/apps/Oracle/wlserver_10.3/server/native/linux/i686/oci920_8:/opt/apps/Oracle/Oracle_SOA1/soa/thirdparty/edifecs/XEngine/bin:/opt/apps/Oracle/Oracle_SOA1/soa/thirdparty/edifecs/XEngine/bin]
java.lang.NoClassDefFoundError: Could not initialize class com.sap.mw.jco.JCO
Invoking SAP targets from bpel or iwafjca test servlet fails with "java.lang.NoClassDefFoundError: Could not initialize class com.sap.mw.jco.JCO."
I am able to connect from Application Explorer(AE) and browse through idocs and bapis. I tried to check the class loading pattern for AE using Jconsole :
1. Started the AE
2. /opt/apps/Oracle/jdk1.6.0_19/bin/jps
15279 BseFlashScreen
3. /opt/apps/Oracle/jdk1.6.0_19/bin/jconsole 15279
Enabled verbose output on class loading page and connected to SAP target from AE
4. The verbose output shows below :
Loaded com.sap.mw.jco.JCO from file:/opt/apps/Oracle/Oracle_SOA1/soa/thirdparty/ApplicationAdapters/lib/sapjco.jar
I have added the above path to my LD_LIBRARY_PATH
LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${WL_HOME}/server/native/linux/${arch}:${MW_HOME}/Oracle_SOA1/soa/thirdparty/ApplicationAdapters/lib:${MW_HOME}/user_projects/domains/base_domain/lib:${WL_HOME}/server/native/linux/${arch}/oci920_8
I also added the path to WEBLOGIC_CLASSPATH in commEnv.sh file.
The sapjco.jar, libsapjcorfc.so and librfccm.so files are also available under below directories
WL_HOME/server/lib
MW_HOME/Oracle_SOA1/soa/thirdparty/ApplicationAdapters/lib
MW_HOME/user_projects/domains/base_domain/lib
Any suggestions will be really helpful.
Regards
Subhankar

Answer 1

Hi Manoj,
I have added the libsapjcorfc.so and librfccm.so files to below locations:
WL_HOME/server/lib
MW_HOME/Oracle_SOA1/soa/thirdparty/ApplicationAdapters/lib
MW_HOME/user_projects/domains/base_domain/lib
And also set the LD_LIBRARY_PATH and WEBLOGIC_CLASSPATH in commEnv.sh file.
Eg:
LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${WL_HOME}/server/native/linux/${arch}:${MW_HOME}/Oracle_SOA1/soa/thirdparty/ApplicationAdapters/lib:${MW_HOME}/user_projects/domains/base_domain/lib:${WL_HOME}/server/native/linux/${arch}/oci920_8
Is there any other location where these need to be added ? I hope library path/system path refers to the WEBLOGIC_CLASSPATH ?
Regards
Subhankar