Error on startup: EntityEcaHandler class with name org.ofbiz.core.extentity.eca.DelegatorEcaHandler was not found, Entity ECA Rules will be disabled

When JIRA 2.5b2 standalone starts up, it gives this error after creating the tables:

2003-10-24 22:14:05,576 WARN [NoModule] EntityEcaHandler class with name org.ofbiz.core.extentity.eca.DelegatorEcaHandler was not found, Entity ECA Rules will be disabled
java.lang.ClassNotFoundException: org.ofbiz.core.extentity.eca.DelegatorEcaHandler
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1444)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1289)
at org.ofbiz.core.entity.GenericDelegator.<init>(GenericDelegator.java:182)
at org.ofbiz.core.entity.GenericDelegator.getGenericDelegator(GenericDelegator.java:89)
at com.atlassian.core.ofbiz.CoreFactory.getGenericDelegator(CoreFactory.java:33)
at com.atlassian.jira.upgrade.ConsistencyCheckImpl.checkConnection(ConsistencyCheckImpl.java:181)
at com.atlassian.jira.upgrade.ConsistencyCheckImpl.checkConsistency(ConsistencyCheckImpl.java:138)
at com.atlassian.jira.upgrade.ConsistencyCheckImpl.initialise(ConsistencyCheckImpl.java:129)
at com.atlassian.jira.upgrade.ConsistencyLauncher.contextInitialized(ConsistencyLauncher.java:18)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3270)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3599)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:738)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347)
at org.apache.catalina.core.StandardService.start(StandardService.java:497)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)
at org.apache.catalina.startup.Catalina.start(Catalina.java:512)
at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)
at org.apache.catalina.startup.Catalina.process(Catalina.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)

Harmless but annoying.