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

Status

closed

Product Version

4.0.32

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)

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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