The below links provide the good sites in the internet where you can get java,j2ee pdf materials apart from j2eebrain.
Best place in the internet where you will get Java J2ee pdf tutorials
1) https://www6.software.ibm.com/developerworks/education/j-javamail/j-javamail-a4.pdf
This site explains the fundamentals of the JavaMail API. The following are the contents of this pdf.
A) Introduction of JavaMail API
B) Reviewing related protocols
C) Installing JavaMail
D) Reviewing the core classes
E) Ussage of JavaMai etc
2) http://netbeans.org/project_downloads/www/J2EE-NBTutorial.pdf – This pdf gives the good idea related to J2EE. Here we discuss the following topics.
A) Distributed Multitiered Applications
B) J2EE Containers
C) Web services support
D) Packaging applications
E) Sun Java system applications
F) SOAP
G) Enterprise Beans
H) Session etc
3) http://docs.oracle.com/javaee/1.3/tutorial/doc/J2EETutorial.pdf . This site gives the overview of the following topics.
1) Web applications details
2) JavaServlet and JavaServer Technologies.
3) Tags
4) Java encoding schemes
4) http://www.dsc.ufcg.edu.br/~jacques/cursos/j2ee/recursos/j2ee-1_3-doc-tutorial-draft5.pdf
In this site we discuss how to use J2EE.
5) http://docs.jboss.org/jbossas/getting_started/3.2/jbossj2ee.pdf
Here we discuss how to use jboss.
6) http://docs.oracle.com/cd/E17802_01/webservices/webservices/docs/1.6/tutorial/doc/JavaWSTutorial.pdf
Here we discuss the different web Services methods