To make an ELResolver class visible to the Java EE runtime, it must be declared in an application configuration resource file.

Also note that a CardLayout variable was created.

4 implementations such as the J2EE 1.

In Java EE 5, you can use annotations to easily construct a JAX-WS web
service.

In Java EE 5, VariableResolver and PropertyResolver have been
deprecated.

NORTH, left, 25,SpringLayout.