This turn long URLs into short form:

http://tinyurl.com - will create a tiny URL. Nice feature!

hibernate-entitymanager jar right version and sources for it

It could be a big problem to define which version of jar is right version.
but if you know right place to search - it is become easy:
http://repository.jboss.org/maven2/org/hibernate/hibernate-entitymanager/
here are all GA releases of hibernate-entitymanager with sources.