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

Fixes are available

7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
8.5.0.1: WebSphere Application Server V8.5 Fix Pack 1
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

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You can track all active APARs for this component.

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

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



Document information

More support for: WebSphere Application Server for z/OS
General

Software version: 800

Reference #: PM64028

Modified date: 17 August 2012