Expression Language Types
The API
for EL evaluation is defined in the
javax.servlet.jsp.el package. The types in this
package are designed without dependencies on the rest of the JSP API,
to allow the EL machinery to be used in other environments besides
JSP. In a JSP environment, application code should rarely use these
types directly—the container takes care of all EL
evaluation—but they can be used for special cases, such as code
getting text that contains EL expressions from an external source.
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