[esb-dev] properites file problem

I'm getting this error. Anybody have any hints? 12:52:49,359 FATAL [ModulePropertyManager] ModulePropertyManager failed 12:52:49,359 ERROR [JmsServerSession] Unexpected error delivering message delegator->JBossMessage[0]:PERSISTENT org.jboss.soa.esb.FatalError: com.arjuna.common.util.exceptions.LoadPropertiesException: Failed to instantiate plugin: j ava.lang.NullPointerException at org.jboss.soa.esb.common.ModulePropertyManager.initialise(ModulePropertyManager.java:160) at org.jboss.soa.esb.common.ModulePropertyManager.getPropertyManager(ModulePropertyManager.java:115) at org.jboss.soa.esb.couriers.filter.FilterManager.<init>(FilterManager.java:107) at org.jboss.soa.esb.couriers.filter.FilterManager.getInstance(FilterManager.java:54) at org.jboss.internal.soa.esb.couriers.TwoWayCourierImpl.deliver(TwoWayCourierImpl.java:164) Caused by: com.arjuna.common.util.exceptions.LoadPropertiesException: Failed to instantiate plugin: java.lang.NullPointe rException at com.arjuna.common.internal.util.propertyservice.PropertyManagerImpl.load(PropertyManagerImpl.java:367) at org.jboss.soa.esb.common.ModulePropertyManager.initialise(ModulePropertyManager.java:153) ... 33 more -- Bill Burke JBoss, a division of Red Hat Inc.