PM64028: STATUS CODE 500 IS RETURNED FROM THE PROXY SERVER WHEN COMPRESSION IS ENABLE.

Fixes are available

APAR status

Closed as program error.

Error description

The compression filter code is expecting a Content-Type header.
If a response does not have one because it has no response data
a NullPointerException will occur and a 500 status code is
returned instead of the original status code.

In the logs, the following FFDC entry will be generated:

[5/4/12 19:34:56:576 GMT]     FFDC
Exception:java.lang.NullPointerException
SourceId:com.ibm.ws.proxy.filter.http.HttpFilterChain.doResponse
FilterChain ProbeId:1
Reporter:com.ibm.ws.proxy.filter.http.HttpFilterChain@616f1aa
java.lang.NullPointerException
 at
com.ibm.ws.proxy.compression.http.HttpCompressionFilter.getCompr
essionMode(HttpCompressionFilter.java:76)
 at
com.ibm.ws.proxy.compression.http.HttpResponseCompressionFilter.
doFilter(HttpResponseCompressionFilter.java:113)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V8.0 and V8.5 Proxy Server.          *
****************************************************************
* PROBLEM DESCRIPTION: If the Proxy Server is configured for   *
*                      compression, a response with no         *
*                      Content-Type header will cause an NPE   *
*                      and a 500 response to be sent back.     *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The Proxy compression filter code expects inspects the
Content-Type header on the response without checking if it
exists.  This causes an NPE and an FFDC.
[5/4/12 19:34:56:576 GMT]     FFDC
Exception:java.lang.NullPointerException
SourceId:com.ibm.ws.proxy.filter.http.HttpFilterChain.doResponse
FilterChain ProbeId:1
Reporter:com.ibm.ws.proxy.filter.http.HttpFilterChain@616f1aa
java.lang.NullPointerException
at
com.ibm.ws.proxy.compression.http.HttpCompressionFilter.getCompr
essionMode(HttpCompressionFilter.java:76)
at
com.ibm.ws.proxy.compression.http.HttpResponseCompressionFilter.
doFilter(HttpResponseCompressionFilter.java:113)

Problem conclusion

The Proxy Compression Filter will be changed to handle no
Content-Type response header.

APAR PM64028 is currently targeted for inclusion in
Fix Packs 8.0.0.5 and 8.5.0.1 of WebSphere Application
Server.

Sysroute APAR PM66048 will be used to deliver this fix in
WebSphere Application Server V7.0 for z/OS.

Please refer to the Recommended Updates page for delivery
information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

In addition, please refer to URL:
http://www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack PTF information.

Temporary fix

Comments

APAR Information

APAR number
PM64028
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-05-07
Closed date
2012-06-01
Last modified date
2012-08-17

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

PM66048

Fix information

Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R800 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"800","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021

Tips

PM64028: STATUS CODE 500 IS RETURNED FROM THE PROXY SERVER WHEN COMPRESSION IS ENABLE.

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R800 PSY

Document Information

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