1. Core Container
   1. Core and Beans
      1. org.springframework.core
      2. org.springframework.beans
   2. Context
      1. org.springframework.context
      2. org.springframework.context.support
   3. Expression Language
      1. org.springframework.expression
2. Data Access/Integration
   1. JDBC
      1. org.springframework.jdbc
   2. ORM
      1. org.springframework.orm
   3. OXM
      1. org.springframework.oxm
   4. Transaction
      1. org.springframework.transaction
   5. JMS
      1. org.springframework.jms
3. Web
   1. Web
      1. org.springframework.web
   2. Web-Servlet
      1. org.springframework.web.servlet
   3. Web-Struts
      1. org.springframework.web.struts
   4. Web-Portlet
      1. org.springframework.web.portlet
4. AOP and Instrumentation
   1. AOP
      1. org.springframework.aop
   2. Aspects
      1. org.springframework.aspects
   3. Instrumentation
      1. org.springframework.instrument
      2. org.springframework.instrument.tomcat
5. Test
   1. org.springframework.test