Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Developer's Guide

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### Default Cache Configuration

If you enable caching but do not provide any special configuration for a servlet or JSP, the default cache configuration is as follows:

- The default cache timeout is 30 seconds.

- Only the HTTP GET method is eligible for caching.

- HTTP requests with cookies or sessions automatically disable caching.

- No special consideration is given to `Pragma:`, `Cache-control:`, or `Vary:` headers.

- The default key consists of the Servlet Path (minus `pathInfo` and the query string).

- A “least recently used” list is maintained to evict cache entries if the maximum cache size is exceeded.

- Key generation concatenates the servlet path with key field values, if any are specified.

- Results produced by resources that are the target of a `RequestDispatcher.include()` or `RequestDispatcher.forward()` call are never cached.

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