PM66048: STATUS CODE 500 IS RETURNED FROM THE PROXY SERVER WHEN COMPRESSION IS ENABLE.

PM67300: NullPointerException and 500 response if no Content-Type header
Obtain the fix for this APAR.

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 V7.0                                  *
  ****************************************************************
  * 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 PM66048 is currently targeted for inclusion in Service
  Level (Fix Pack) 7.0.0.25 of WebSphere Application Server V7.0.
  
  Please refer to URL:
  //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
  for Fix Pack availability.
  

Temporary fix

Comments

APAR Information

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

  PM64028

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

  PM67300

Modules/Macros

• BBGUBINF BBOUBINF
  

Fix information

• Fixed component name

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R700 PSY UK81738

     UP12/10/04 P F210

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.