I have configured a connection pool in JBoss to talk to MySQL DB (using a *-ds.xml in deploy directory)
The datasource is bound to JNDI and is used by applications running in a different VM

Basic query/update has always been fine :)
Recently I had to store a java object in MySQL DB

I used preparedstatement.readobject and writeobject(). This seems to be throwing JbossLazyUnmarshallingException

I used the same code in a normal Java program (using DriverManager rather than the JNDI to get the SQL connection)
This ran fine (both for reading and writing objects)


How to avoid the Unmarshallingexception? Do I need to use Streams to write and read data? Or is there is a config to disable Lazy Unmarshalling?:

Configuration:
----------------
Jboss 4.2.3 GA
Mysql 5.0.46 enterprise
Mysql connector : 5.1.7



thanks in advance :)
Venu