When clients register for callbacks or event notifications and deliver a unknown computer name (or the domain server or network is misconfigured)in the class org.jacorb.orb.iiop.IIOPAddress a NullPointerException get's thrown due to a missing logger instance in the catch block of received UnknownHostException: [2016-01-29 10:33:00.106] WARN PushTaskExecutor#0-0 org.jacorb.notification.servant.StructuredProxyPushSupplierImpl handle failed pushoperation java.lang.NullPointerException: null at org.jacorb.orb.iiop.IIOPAddress.init_host(IIOPAddress.java:191) at org.jacorb.orb.iiop.IIOPAddress.getHostName(IIOPAddress.java:286) at org.jacorb.orb.iiop.IIOPAddress.toString(IIOPAddress.java:441) at org.jacorb.orb.iiop.IIOPAddress.hashCode(IIOPAddress.java:435) at org.jacorb.orb.iiop.IIOPProfile.hashCode(IIOPProfile.java:627) at java.util.HashMap.hash(HashMap.java:362) at java.util.HashMap.getEntry(HashMap.java:462) at java.util.HashMap.get(HashMap.java:417) at org.jacorb.orb.giop.ClientConnectionManager.getConnection(ClientConnectionManager.java:96) at org.jacorb.orb.Delegate.bind(Delegate.java:542) at org.jacorb.orb.Delegate.getObjectKey(Delegate.java:1046) at org.jacorb.orb.ORB.findPOA(ORB.java:613) at org.jacorb.orb.Delegate.resolvePOA(Delegate.java:1117) at org.jacorb.orb.Delegate.is_really_local(Delegate.java:2032) at org.jacorb.orb.Delegate.is_local(Delegate.java:2021) at org.omg.CORBA.portable.ObjectImpl._is_local(ObjectImpl.java:130) at org.omg.CosNotifyComm._StructuredPushConsumerStub.push_structured_event(_StructuredPushConsumerStub.java:110) at org.jacorb.notification.servant.StructuredProxyPushSupplierImpl.deliverMessageInternal(StructuredProxyPushSupplierImpl.java:122) at org.jacorb.notification.servant.StructuredProxyPushSupplierImpl.deliverMessageWithRetry(StructuredProxyPushSupplierImpl.java:106) at org.jacorb.notification.servant.StructuredProxyPushSupplierImpl.pushEvent(StructuredProxyPushSupplierImpl.java:92) at org.jacorb.notification.servant.AbstractProxyPushSupplier.tryPushEvent(AbstractProxyPushSupplier.java:144) at org.jacorb.notification.servant.AbstractProxyPushSupplier.access$000(AbstractProxyPushSupplier.java:63) at org.jacorb.notification.servant.AbstractProxyPushSupplier$1.doPush(AbstractProxyPushSupplier.java:93) at org.jacorb.notification.engine.DefaultPushTaskExecutor$Worker.run(DefaultPushTaskExecutor.java:59) The used jacorb version is the recent 3.7 but this error was observed in older versions as well. (BTW: in bugzilla is no version 3.7 present)
Fixed by 63cf9297242880248ac7e4a02ada4d5fa6a91ee0