https://bz.apache.org/bugzilla/show_bug.cgi?id=61710
--- Comment #1 from john <youany...@qq.com> ---
This error happened in tomcat session replicated when connecting with Oracle,
there is no connection instance in session objects of my project!
01-Nov-2017 16:45:26.653 SEVERE [https-jsse-nio-8443-exec-2]
org.apache.catalina.ha.session.DeltaManager.requestCompleted Unable to
serialize delta request for sessionid [F825A52DD9E0E7F8FD6BB3E3F721F841]
java.io.NotSerializableException: oracle.jdbc.driver.T4CConnection
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
at java.util.ArrayList.writeObject(ArrayList.java:742)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
at
org.apache.catalina.ha.session.DeltaRequest$AttributeInfo.writeExternal(DeltaRequest.java:401)
at
org.apache.catalina.ha.session.DeltaRequest.writeExternal(DeltaRequest.java:294)
at
org.apache.catalina.ha.session.DeltaRequest.serialize(DeltaRequest.java:308)
at
org.apache.catalina.ha.session.DeltaManager.serializeDeltaRequest(DeltaManager.java:594)
at
org.apache.catalina.ha.session.DeltaManager.requestCompleted(DeltaManager.java:979)
at
org.apache.catalina.ha.session.DeltaManager.requestCompleted(DeltaManager.java:946)
at
org.apache.catalina.ha.tcp.ReplicationValve.send(ReplicationValve.java:523)
at
org.apache.catalina.ha.tcp.ReplicationValve.sendMessage(ReplicationValve.java:511)
at
org.apache.catalina.ha.tcp.ReplicationValve.sendSessionReplicationMessage(ReplicationValve.java:493)
at
org.apache.catalina.ha.tcp.ReplicationValve.sendReplicationMessage(ReplicationValve.java:404)
at
org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:333)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
at
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:240)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
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