PI50096: When java security is enabled application class loaders may get access to internal packages contained in liberty profile

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
8.5.5.17: 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

• When java security is enabled for Liberty profile it causes
  a bug to surface that allows access to internal packages
  from application class loaders.  This generally will not be
  an issue unless the application is somehow compiling against
  the internal jar files of Liberty profile.  But it is
  possible that the application is packaging some open source
  library that is also used by Liberty profile.  The
  application may unexpectedly load the version of the open
  source library that is used by the Liberty profile
  implementation instead of from their own copy.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Profile                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: When java security is enabled           *
  *                      application class loaders may get       *
  *                      access to internal packages contained   *
  *                      in liberty.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When java security is enabled for Liberty profile it causes a
  bug to surface that allows access to internal packages from
  application class loaders.  This generally will not be an issue
  unless the application is somehow compiling against the internal
  jar files of Liberty profile.  But it is possible that the
  application is packaging some open source library that is also
  used by Liberty profile.  The application may unexpectedly load
  the version of the open source library that is used by the
  Liberty profile implementation instead of from their own copy.
  

Problem conclusion

• The OSGi Framework has been fixed to protect the application
  against the permission check necessary to obtain the services
  needed to control access to Liberty profile APIs.
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 8.5.5.8.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

• Disable the java security manager or grant the application the
  folloing permission
  
  org.osgi.framework.ServicePermission * get
  

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

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