java.lang.IllegalStateException: putFields() may not be called now
	at org.jboss.marshalling.serial.SerialObjectOutputStream.putFields(SerialObjectOutputStream.java:232)
	at java.util.concurrent.ConcurrentHashMap.writeObject(ConcurrentHashMap.java:1404)
	at org.jboss.marshalling.serial.SerialMarshaller.writeSerialData(SerialMarshaller.java:293)
	at org.jboss.marshalling.serial.SerialMarshaller.doWriteObject(SerialMarshaller.java:273)
	at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:58)
	at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:111)
	at org.jboss.test.marshalling.SimpleMarshallerTests$46.runWrite(SimpleMarshallerTests.java:1350)
	at org.jboss.test.marshalling.TestBase.runReadWriteTest(TestBase.java:105)
	at org.jboss.test.marshalling.SimpleMarshallerTests.testConcurrentHashMap(SimpleMarshallerTests.java:1348

java.io.StreamCorruptedException: Unexpected lead byte 0
	at org.jboss.marshalling.serial.SerialUnmarshaller.badLeadByte(SerialUnmarshaller.java:587)
	at org.jboss.marshalling.serial.SerialUnmarshaller.doReadObject(SerialUnmarshaller.java:331)
	at org.jboss.marshalling.serial.BlockUnmarshaller.readObject(BlockUnmarshaller.java:136)
	at org.jboss.marshalling.serial.BlockUnmarshaller.readObject(BlockUnmarshaller.java:122)
	at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:53)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
	at java.util.concurrent.ConcurrentHashMap.readObject(ConcurrentHashMap.java:1443)
	at org.jboss.marshalling.serial.PlainDescriptor.doReadObject(PlainDescriptor.java:94)
	at org.jboss.marshalling.serial.PlainDescriptor.readSerial(PlainDescriptor.java:68)
	at org.jboss.marshalling.serial.SerialUnmarshaller.doReadSerialObject(SerialUnmarshaller.java:345)
	at org.jboss.marshalling.serial.SerialUnmarshaller.doReadObject(SerialUnmarshaller.java:284)
	at org.jboss.marshalling.serial.SerialUnmarshaller.doReadObject(SerialUnmarshaller.java:74)
	at org.jboss.marshalling.AbstractObjectInput.readObject(AbstractObjectInput.java:41)
	at org.jboss.test.marshalling.SimpleMarshallerTests$46.runRead(SimpleMarshallerTests.java:1356)
	at org.jboss.test.marshalling.TestBase.runReadWriteTest(TestBase.java:116)
	at org.jboss.test.marshalling.SimpleMarshallerTests.testConcurrentHashMap(SimpleMarshallerTests.java:1348)