Application Server provides functionality as a container (Web Container) that includes functionality for executing Web applications.

The following table lists the Web Container functionality provided with Application Server and the reference sections corresponding to the functionality:

Table 2-1 Web container functionality and the reference sections corresponding to each functionality

Functionality	Reference
Web application execution functionality	2.2
Functionality for executing JSPs	2.3
Functionality for debugging JSPs	2.4
JSP pre-compilation functionality and maintaining compilation results	2.5
Functionality for setting up the default character encoding	2.6
Session management functionality	2.7
Event listener of an application	2.8
Functionality of filtering the requests and responses	2.9
HTTP response compression functionality	2.10
Integrating with the EJB container	2.11
Connecting to the database	2.12
Creating a thread by using the Web container	2.13
Using the user thread	2.14
Controlling the number of concurrently executing threads	2.15
Controlling the number of concurrently executing threads in the Web container	2.16
Controlling the number of concurrently executing threads in each Web application	2.17
Controlling the number of concurrently executing threads in each URL group	2.18
Changing the number of concurrently executing threads dynamically	2.19
Customizing the error page	2.20
Caching the static contents	2.21
URI decode functionality	2.22
Version setup functionality of Web applications	2.23
Notes on the maximum size of POST data	2.24

The functionality of a Web container provided in Application Server includes functionality wherein the functions unique to Application Server are extended beyond the functions defined in J2EE, and also functions provided as functions unique to Application Server. For details on whether the functionality is unique to Application Server, see 1.2 Functionality corresponding to the purpose of the system.