The error is:

<failure message="org.jboss.marshalling.serial.ExternalizedObject cannot be cast to org.jboss.test.marshalling.SimpleMarshallerTests$TestExternalizerWithAnnotation" type="java.lang.ClassCastException">java.lang.ClassCastException: org.jboss.marshalling.serial.ExternalizedObject cannot be cast to org.jboss.test.marshalling.SimpleMarshallerTests$TestExternalizerWithAnnotation
at org.jboss.test.marshalling.SimpleMarshallerTests$44.runRead(SimpleMarshallerTests.java:1320)
at org.jboss.test.marshalling.TestBase.runReadWriteTest(TestBase.java:127)
at org.jboss.test.marshalling.SimpleMarshallerTests.testExternalizerAnnotation(SimpleMarshallerTests.java:1305)
</failure>
<system-out>Read Configuration = org.jboss.marshalling.MarshallingConfiguration@ee31e33: classExternalizerFactory=<org.jboss.marshalling.AnnotationClassExternalizerFactory@60d3ade7> creator=<org.jboss.marshalling.reflect.SunReflectiveCreator@39b8d6f7> instanceCount=256 classCount=64 bufferSize=512 version=-1
Marshaller = org.jboss.marshalling.serial.SerialMarshaller@693e4a5a (version set to -1)
Write Configuration = org.jboss.marshalling.MarshallingConfiguration@7121fd61: classExternalizerFactory=<org.jboss.marshalling.AnnotationClassExternalizerFactory@6e82254d> creator=<org.jboss.marshalling.reflect.SunReflectiveCreator@39b8d6f7> instanceCount=256 classCount=64 bufferSize=512 version=-1
Unmarshaller = org.jboss.marshalling.serial.SerialUnmarshaller@225f1ae9 (version set to -1)
</system-out>

Disabling the test for now.