java.lang.ClassCastException: org.jboss.serial.finalcontainers.IntegerContainer incompatible with org.jboss.serial.finalcontainers.FloatContainer java.util.Properties IBM AIX JDK 1.5_10 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: JBSER-118 URL: https://jira.jboss.org/jira/browse/JBSER-118 Project: JBoss Serialization Issue Type: Bug Affects Versions: 1.0.3 GA Environment: AIX 5.3.0.0 java version "1.5.0" Java(TM) 2 Runtime Environment, Standard Edition (build pap32dev-20090707 (SR10 )) IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223-20090707 (JIT enabled) J9VM - 20090706_38445_bHdSMr JIT - 20090623_1334_r8 GC - 200906_09) JCL - 20090705 Reporter: Rene Felder Assignee: Clebert Suconic There is a problem using the jboss-serialization when upgrading from JDK 1.5_08 to JDK 1.5_10 on AIX. jboss-serialization wants to read a float but gets an integer (see Stacktrace). The problem only occurs if we use a java.util.Properties Class within an EJB 3 Call. If we remove the java.util.Properties everything works fine. When digging into the source code we found out that the problem occurs because java.util.Properties derives from java.util.Hashtable where jboss-serialization tries to read the two instanz variables loadFactor and threshold. Threshold is an integer and loadFactor is a float. It seems that they are swapped. So when reading the loadFactor we get an Integer value instead of a float value. It seems that the problem occurs in the Reflection Mechanism of the JDK. The order in which Properties are returned from a class does not seem to be constant when writting and reading. 2009-09-30 00:58:39,039 DEBUG [org.jboss.serial.persister.RegularObjectPersister] FieldName on Read=domains 2009-09-30 00:58:39,039 DEBUG [org.jboss.serial.persister.RegularObjectPersister] readSlotWithFields slot=at.sozvers.stp.esv.cms.service.config.Configuration field=domains<<-reading Object 2009-09-30 00:58:39,039 DEBUG [org.jboss.serial.objectmetamodel.ObjectDescriptorFactory] objectFromDescription::reading new definition 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.objectmetamodel.ObjectDescriptorFactory] Reading object for id=3 classLoader=org.jboss.web.tomcat.service.WebCtxLoader$ENCLoader@5ae45ae4 className = java.util.Properties 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.persister.RegularObjectPersister] defaultRead::class java.util.Properties contains 2 slots 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.persister.RegularObjectPersister] defaultRead::slot[0]=java.util.Hashtable 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.persister.RegularObjectPersister] readSlotWithMethod slot=java.util.Hashtable 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.persister.RegularObjectPersister] readSlotWithFields slot=java.util.Hashtable 2009-09-30 00:58:39,040 DEBUG [org.jboss.serial.persister.RegularObjectPersister] FieldName on Read=loadFactor java.io.IOException at org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:107) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:269) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:845) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:353) at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:273) at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:241) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412) at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82) at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:845) at org.jboss.serial.io.MarshalledObjectForLocalCalls.get(MarshalledObjectForLocalCalls.java:60) at org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:96) at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:72) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107) ... 227 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:618) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103) ... 243 more Caused by: org.jboss.serial.exception.SerializationException: Excepted to be float at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readFloat(DataContainer.java:1080) at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:325) at org.jboss.serial.persister.ObjectInputStreamProxy.defaultReadObject(ObjectInputStreamProxy.java:78) at java.util.Hashtable.readObject(Hashtable.java:770) ... 248 more Caused by: java.lang.ClassCastException: org.jboss.serial.finalcontainers.IntegerContainer incompatible with org.jboss.serial.finalcontainers.FloatContainer at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readFloat(DataContainer.java:1076) ... 251 more -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira