Even though this document:
https://jaxb.dev.java.net/guide/Which_JAXB_RI_is_included_in_which_JDK_.html suggests that JDK 6 Update 3 should have JAXB RI 2.1.3, it seems to only have 2.0.3
Anyway to solve your problem, go to this page:
https://jaxb.dev.java.net/2.0.3/ Download the binary - run it, and you'll get a dir called 'jaxb-ri-20061013'
Move (or copy) this directory into your 'jwsdp-2.0'-folder
When you generate the JAXB code, use 'jwsdp-2.0\jaxb-ri-20061013\bin\xjc.bat'
Remember to change your compile & runtime classpath to this folder too.
