Source code lay out:
--------------------
blog5
     entities -- entity source code and persistence.xml
     ejbs -- ejb classes are here.
     web-app2 -- servlet source code, html pages and web.xml are here.
     appclient -- application client code is here.
     build.xml 

Build steps:
------------
change glassfish.home property in build.xml.
glassfish.home property points to the root of the application server
installation directory. The only external library used by build process
is javaee.jar which contains all the standard Java EE API classes.

ant build: produces build/blog5.ear
ant deploy: deploys the app to app server.
ant verify: verifies compliance of the app against Java EE spec.

To run the application 
----------------------
open http://localhost:8080/web-app2/login.html
This uses the servlets.

To run the application client, run:
$GLASSFISH_HOME/bin/appclient -client $GLASSFISH_HOME/domains/domain1/generated/xml/j2ee-apps/blog5/blog5Client.jar <Names of user that you want to remove>

Note, there is a special option in asadmin deploy called --retrieve which 
can be used to download the blog5Client.jar to a directory of your choice.
Run asadmin deploy --help for more details.

Database Setup:
---------------
No need to set up data sources or create tables. The application uses
Java2DB feature in glassfish and creates the table automatically during
deployment (See --createtables option used in build.xml).
This creates a table called "USERCREDENTIAL" with two columns 
called "NAME" and "PASSWORD" in database called sun-appserv-samples. 
This is the default Derby database that Sun App Server uses if 
no data source details are supplied in persistence.xml.

So all you need to do is to start Derby by running the following command:

$GLASSFISH_HOME/bin/asamdin start-database


You are free to use any other database that you like. To do that you have 
to create a datasource (refer to app server document for this) and 
configure persistence.xml.

Some common Sun Java System Application Server commands:
--------------------------------------------------------
To start the appserver:
asadmin start-domain

To stop the appserver:
asadmin stop-domain

To deploy an app:
asadmin deploy --user admin  --passwordfile .adminpassword.txt --createtables --retrieve /tmp <path to app>
change user name and password to whatever you used during installtion.

To undeploy an app:
asadmin undeploy --user admin  --passwordfile .adminpassword.txt <basename of the app>