Looks like a case issue in HibernateUtil - if I change ImportFromClasspathEntityResolver() to ImportFromClassPathEntityResolver() then everything compiles.
Code:
[javac] /Users/trisberg/Downloads/caveatemptor/src/java/org/hibernate/ce/auction/persistence/HibernateUtil.java:50: cannot find symbol
[javac] symbol : class ImportFromClasspathEntityResolver
[javac] location: class org.hibernate.ce.auction.persistence.HibernateUtil
[javac] configuration.setEntityResolver(new ImportFromClasspathEntityResolver());
[javac] ^
[javac] 1 error