errorPage

Defines a URL to a resource to which any Java programming language 

Throwable

 object(s) thrown but not caught by the page 

implementation are forwarded to for error processing.

The provided URL spec is as in Section 2.5.2.

The resource named has to be a JSP page in this version of the 

specification.

If the URL names another JSP page then, when invoked that JSP 

page's 

exception

 implicit script variable shall contain a reference 

to the originating uncaught 

Throwable

.

The default URL is implementation dependent.

Note the 

Throwable

 object is transferred by the throwing page 

implementation to the error page implementation by saving the object 

reference on the common 

ServletRequest

 object using the 

setAttribute()

 method, with a name of

javax.servlet.jsp.jspException

 .

Note: if 

autoFlush=true

 then if the contents of the initial 

JspWriter

 has been flushed to the 

ServletResponse

 output 

stream then any subsequent attempt to dispatch an uncaught exception 

from the offending page to an 

errorPage

 may fail.

contentType

Defines the character encoding for the JSP page and for the response 

of the JSP page and the MIME type for the response of the JSP page.

Values are either of the form  TYPE  or  TYPE; charset=CHARSET  

with an optional white space after the  ; . CHARSET, if present, must 

be the IANA value for a character encoding. TYPE is a MIME type, 

see the IANA registry for useful values.

The default value for TYPE is  text/html ; the default value for the 

character encoding is ISO 8859 1.

See Section 2.7.4 for complete details on character encodings.

2.7.2

Synchronization Issues

JSP Pages inherit the Servlet semantics as described in the Servlet 2.2 specification.  In this 

section we briefly summarize the threading and distribution issues from that specification, as 

they apply to JSP pages.

47

JavaServer Pages 1.1 Specification  

November 30, 1999