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This is for those who want to know the ideal and most common way an application is packaged in the form of an ear file. Here's how the application structure will look like:

myApp.ear
 |
 |--------- META-INF
 | |
 | |---------- application.xml
 |
 |--------- myEJB.jar
 | |
 | |--------- META-INF
 | | |
 | | |-------- ejb-jar.xml 
 | |
 | |------ org
 | | |----- myApp
 | | |------- ejb
 | |-------- *.class
 |
 |---------- myWeb.war
 | |
 | |----- WEB-INF
 | |------ web.xml
 | |
 | |------ jsp
 | |---- *.jsp
 |
 |---------- commonUtil.jar
 |
 |--------- org
 |----- myApp
 |------ common
 |----- *.class

The application.xml present in the META-INF folder of the ear will contain the following:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN" "http://java.sun.com/dtd/application_1_3.dtd">
<application>
 <display-name>helloworld</display-name>
 
 <module>
 <java>commonUtil.jar</java>
 </module>
 
 <module>
 <web>
 <web-uri>myWeb.war</web-uri>
 <context-root>/myWeb</context-root>
 </web>
 </module>
 
 <module>
 <ejb>myEJB.jar</ejb>
 </module>
 
</application>

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