PI28776: Fix several kernel issues

8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• This APAR includes the following changes:
  
  - Feature list shouldn't include internal packages (behavioral
  change)
  
  - Resolve file monitor timing window
  
  - isFix returns incorrect result on a warm start if a fix file
  has been modified
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM Websphere Application      *
  *                  Server Liberty profile                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Internal features should not appear in  *
  *                      featurelist; file moniitor erroneous    *
  *                      "should have been able to delete";      *
  *                      interim fix reporting                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  This APAR addresses three different symptoms.
  
  1) When Liberty
  profile was queried for which features were available, by
  running "java -jar bin/tools/ws-featurelist.jar", the resulting
  featureList.xml file included some "features" which are really
  internal Liberty components and not available for use outside
  the Liberty implementation code. This has been corrected to list
  only features which can actually be specified in the Liberty
  profile configuration.
  
  2) When Liberty profile recognized that
  the contents of its configuration directory had changed, and was
  performing an automatic reconfiguration of the running server,
  users would occasionally see problems such as:
  
  
  junit.framework.AssertionFailedError: Should have been able to
  delete the file <filename>
          at
  com.ibm.ws.kernel.filemonitor.fat.AbstractNotificationTest.delet
  eFile(AbstractNotificationTest.java:141)
          at ...
  
  This
  was due to thread conflicts during the process of stopping and
  restarting features within Liberty. It was generally harmless,
  but unnecessarily confusing. We have changed the code to prevent
  this conflict.
  
  3) Under a very specific set of circumstances:
  
  
  1. An interim fix is installed
      2. The server is copied
  somewhere else before any clean start has occurred (thus
  modifying the timestamps of the files)
      3. The new copy of
  the server is then  warm started
  
  ... the interim fixes were not
  being correctly reported in that new copy of the server, They
  would work correctly at runtime if the server was used as it
  stood, but if the server was Minified the interim fixes would
  not be correctly copied into the Minified image and would not be
  applied there. We have corrected this error.
  

Problem conclusion

• Fixes have been made to correct these problems .
  
  The fix for
  this APAR is currently targeted for inclusion in fix pack
  8.5.5.4.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• 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

  WAS LIBERTY COR

• Fixed component ID

  5725L2900

Applicable component levels

• R855 PSY

     UP