SAPAppLockingIllegalArgumentException not found during EJB creation

Question

Hello,
while trying to create a database row using the EJB EntityBean's ejbCreate method, I get the following error message:
com.sap.engine.services.rmi_p4.exception.P4BaseRuntimeException: I/O operation failed : java.lang.ClassNotFoundException: com.sap.engine.services.applocking.exception.SAPAppLockingIllegalArgumentException
Found in negative cache
Loader Info -
ClassLoader name: [sap.com/Project]
Parent loader name: [Frame ClassLoader]
References:
   common:service:http;service:servlet_jsp
   service:ejb
   common:service:iiop;service:naming;service:p4;service:ts
   service:jmsconnector
   library:jsse
   library:servlet
   common:library:IAIKSecurity;library:activation;library:mail;library:tcsecssl
   library:ejb20
   library:j2eeca
   library:jms
   library:opensql
   common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore
   interface:resourcecontext_api
   interface:webservices
   interface:cross
   interface:ejbserialization
Resources:
Loading model: {parent,references,local}
I tried to search SDN but couldn't find any similar question. Hope yall can help.
Best regards,
Jan

Answer 1

Hi Jan,
a guess: you used the applocking-service and did not add a reference in your application-j2ee-engine.xml? You might want to have a look at the [applocking help page|http://help.sap.com/saphelp_nw70/helpdata/EN/fe/07a73acc03054f8d9fcaf3380b7bce/frameset.htm].