0005273: NPE from PageContextImpl.initialize with custom ServletResponse object

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Category

Severity

Reproducibility

Date Submitted

Last Update

0005273

[Resin]

minor

always

11-14-12 06:05

01-18-13 10:15

Reporter

cowan

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

4.0.34

Product Version

4.0.32

Product Build

Summary

0005273: NPE from PageContextImpl.initialize with custom ServletResponse object

Description

We are implementing a POST-Redirect-GET pattern into our system. We are trying to execute the POST context, save the response in an internal object, redirect the user to a page via GET, and then serve the POST results to the user from the GET page.

To try to make this pattern, we replace the ServletResponse with a Proxy object and captured all of the method calls and data being written to the OutputStream / Writer. Unfortunately, I started seeing NullPointerExceptions from within Resin itself (Resin 4.0.32 GPL):

java.lang.NullPointerException
        at com.caucho.jsp.PageContextImpl.initialize(PageContextImpl.java:258)
        at com.caucho.jsp.PageManager.allocatePageContext(PageManager.java:206)
        at _jsp._templates._jsp.__0style2._error__jsp._jspService(_error__jsp.java:24)
        at com.caucho.jsp.JavaPage.service(JavaPage.java:64)
        at com.caucho.jsp.Page.pageservice(Page.java:548)
        at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:194)
        at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:131)
        at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:289)
        at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:298)
        at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:116)

Steps To Reproduce

Additional Information

Rep by B. Loy

Attached Files

Relationships

Notes
(0006165) ferg 01-18-13 10:15	jsp/0622

Issue History
Date Modified	Username	Field	Change
11-14-12 06:05	cowan	New Issue
01-18-13 10:15	ferg	Note Added: 0006165
01-18-13 10:15	ferg	Assigned To	=> ferg
01-18-13 10:15	ferg	Status	new => closed
01-18-13 10:15	ferg	Resolution	open => fixed
01-18-13 10:15	ferg	Fixed in Version	=> 4.0.34

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