Sun jars are now also available in Ibiblio maven repository
Thanks to Carlos Sanchez, Sun jars hosted in the java.net maven repository is now synched periodically to the ibiblio maven/maven2 repositories. For example, you can see JAXB RI jars here and JAXB API jars here
This means unless you are looking for snapshot builds or releases that are just posted yesterday, you can locate these jars without making any change to your default Maven installation.
We are making things easy one thing at a time...