From: Dmitriy Litvak <dmit.litvak_at_gmail.com>
Date: Tue, 7 Nov 2006 16:19:37 -0600

Not sure if this is a good place to write, but there is an issue when
running JAXB as a
service (windows). A Nullpointer exception is thrown on calling
JAXBContext.newInstance("com.foo.bar")

This is because Thread.currentThread().getContextClassLoader() returns null
in this case.
It is reolved by calling ClassLoader.getSystemClassLoader() instead.

Dmitriy