the com.acme.foo:com.acme.bar is the name of the Class package. This class package contains the classes generated by the JAXB compiler to handle the objects created during marshalling/unmarshalling.
I guess you are not supposed to generate the jaxb.properties file. If you are seeing a error which says "jaxb.properties file not found", then probably your jaxb related JAR files are not in the system classpath or the application server classpath. I would recommend copy the JAR files to the lib folder of the application server and then restart the application server and try executing your code.
Let me know if it works for you.
Ritesh<br /> <br />SCJP 1.4<br />IBM Test 340<br />IBM AIX V4.0 Certified Professional<br /> <br />Right actions for the future are the best apologies for wrong ones in the past.<br />- Tyron Edwards