The HttpJspPage interface describes the interaction that a JSP Page
Implementation Class must satisfy when using the HTTP protocol.
application-scoped information for the JSP container.
The JspPage interface describes the generic interaction that a JSP Page
Implementation class must satisfy; pages that use the HTTP protocol
are described by the HttpJspPage interface.
Contains information about an error, for error pages.
JspContext serves as the base class for the
PageContext class and abstracts all information that is not specific
The JspEngineInfo is an abstract class that provides information on the
current JSP engine.
The JspFactory is an abstract class that defines a number of factory
methods available to a JSP page at runtime for the purposes of creating
instances of various interfaces and classes used to support the JSP
The actions and template data in a JSP page is written using the JspWriter
object that is referenced by the implicit variable out which is initialized
automatically using methods in the PageContext object.
PageContext extends JspContext to provide useful context information for
when JSP technology is used in a Servlet environment.
A generic exception known to the JSP engine; uncaught
JspExceptions will result in an invocation of the errorpage
Exception to be used by a Tag Handler to indicate some unrecoverable error.
Exception to indicate the calling page must cease evaluation.