PQ83612: IF IF-MODIFIED-SINCE FIELD OF HTTP HEADER HAS DATE NEWER THAN DATE ON FILE SYSTEM, WEBSPHERE INCORRECTLY RETURNS STATUS 200

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APAR status
Closed as program error.

Error description
If the "if-modified-since" field of the HTTP header contains a
date which is newer than the date of the file on the file system
, WebSphere Application Server incorrectly returns content with
status code SC_OK. WebSphere Application Server should instead
return status code SC_NOT_MODIFIED without content.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 version 4.0.1 for z/OS and OS/390.           *
****************************************************************
* PROBLEM DESCRIPTION: Content is incorrectly returned to the  *
*                      client if the "if-modified-since" field *
*                      of the HTTP header contains a date      *
*                      which is newer than the last-modified   *
*                      date in the file system.                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If the "if-modified-since" field of the HTTP header contains a
date which is newer than the date of the file on the file
system, WebSphere Application Server incorrectly returns content
with status code SC_OK (200). WebSphere Application Server
should instead return status code SC_NOT_MODIFIED (304) without
content.
Problem conclusion
WebSphere Application Server's
com.ibm.servlet.engine.webapp.SimpleFileServlet class
is modified to return a status code SC_NOT_MODIFIED (304) if the
"if-modified-since" field of the HTTP header contains a date
which is newer than the date of the file on the file system.

APAR PQ83612 is associated with SERVICE LEVEL W401609 of
WebSphere Application Server version 4.0.1 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ83612
Reported component name WEBSPHERE OS/39
Reported component ID 5655A9800
Reported release 401
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2004-01-22
Closed date 2004-02-13
Last modified date 2004-03-03

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
EJSJWBJR          

Fix information
Fixed component name WEBSPHERE OS/39
Fixed component ID 5655A9800

Applicable component levels
R401 PSY UQ85155    UP04/02/19 P F402

  Fix is available
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Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ83612
IBM Group: Software Group
Modified date: Mar 3, 2004