Editing Jakarta Server Pages (section)

== Compiler ==

A '''JavaServer Pages compiler''' is a program that parses JSPs and transforms them into executable [[Java Servlets]]. A program of this type is usually embedded into the [[application server]] and run automatically the first time a JSP is accessed, but pages may also be precompiled for better performance, or compiled as a part of the build process to test for errors.<ref>{{Cite web|url=https://www.ibm.com/docs/en/products|title=IBM Docs|website=www.ibm.com}}</ref>

Some JSP containers support configuring how often the container checks JSP [[Computer file|file]] [[timestamp]]s to see whether the page has changed. Typically, this timestamp would be set to a short interval (perhaps seconds) during [[software development]], and a longer interval (perhaps minutes, or even never) for a deployed [[Web application]].<ref>{{Cite web|url=https://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.help.eas_5.0.easperf/html/easperf/easperf111.htm|title=SyBooks Online|website=infocenter.sybase.com}}</ref>