Wildfly 10 - JPA Entity deserialization problem on @Transient field ------------------------------------------------------------------- Key: WFLY-9020 URL: https://issues.jboss.org/browse/WFLY-9020 Project: WildFly Issue Type: Bug Components: Application Client Affects Versions: 10.0.0.Final Environment: Windows 7, Eclipselink 2.6.4 integration, Widlfly 10.0.0.Final Reporter: Nuno Godinho de Matos Priority: Minor In Wildfly 10, We have some system tests that sporadically fail when the client of the application loads an entity, connected to other sub-entities, where one of these sub-entities has a @Transient field. In Particular, we have an entity Attributes that has a field of the form: {panel} @Transient private Map<String, String> attributeMap = new TreeMap<String, String>(); {panel} The root cause of the deserialization problem is of the form: {panel} Caused by: an exception which occurred: in object of type java.util.TreeMap in field attributeMap in object of type basepackage.entity.Attributes in field attributes in object of type basepackage.entity.SubEntityB in element at index [0] of size [1] in field delegate in object of type org.eclipse.persistence.internal.indirection.jdk8.IndirectList in field loadUnits in object of type basepackage.entity.ParentEntityA {panel} The de-serialization execution stack looks as follows: {panel} Caused by: java.io.OptionalDataException at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:147) at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:135) at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:53) at org.jboss.marshalling.river.RiverObjectInputStream.readObjectOverride(RiverObjectInputStream.java:307) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:367) at java.util.TreeMap.buildFromSorted(TreeMap.java:2567) at java.util.TreeMap.buildFromSorted(TreeMap.java:2583) at java.util.TreeMap.buildFromSorted(TreeMap.java:2508) at java.util.TreeMap.readObject(TreeMap.java:2454) at sun.reflect.GeneratedMethodAccessor41.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.jboss.marshalling.reflect.SerializableClass.callReadObject(SerializableClass.java:307) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1637) at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1285) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224) at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1745) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1658) at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1285) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224) at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1745) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1658) at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1285) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224) at org.jboss.marshalling.river.RiverUnmarshaller.doReadCollectionObject(RiverUnmarshaller.java:180) at org.jboss.marshalling.river.RiverUnmarshaller.readCollectionData(RiverUnmarshaller.java:776) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:675) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224) at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1745) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1658) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1606) at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1285) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:224) at org.jboss.marshalling.river.RiverUnmarshaller.readFields(RiverUnmarshaller.java:1745) at org.jboss.marshalling.river.RiverUnmarshaller.doInitSerializable(RiverUnmarshaller.java:1658) at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1285) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:276) at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:209) at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:41) at org.jboss.ejb.client.remoting.MethodInvocationResponseHandler$MethodInvocationResultProducer.getResult(MethodInvocationResponseHandler.java:104) {panel} We are using the following cliean library: {panel} <dependency> <groupId>org.wildfly</groupId> <artifactId>wildfly-client-all</artifactId> <version>10.0.0.Final</version> <scope>test</scope> <optional>true</optional> <exclusions> <exclusion> <groupId>org.apache.activemq</groupId> <artifactId>artemis-commons</artifactId> </exclusion> <exclusion> <groupId>org.apache.activemq</groupId> <artifactId>artemis-core-client</artifactId> </exclusion> <exclusion> <groupId>org.apache.activemq</groupId> <artifactId>artemis-jms-client</artifactId> </exclusion> <exclusion> <groupId>org.apache.activemq</groupId> <artifactId>artemis-hqclient-protocol</artifactId> </exclusion> <exclusion> <groupId> org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> </exclusion> </exclusions> </dependency> {panel} Currently no sample application exists to reproduce the issue. On weblogic the deserialization process goes without incident. Could the @Transient annotation and the eventual (empty map vs popuated attribtues map) play a role on this issue? Kindest regards.