PM57384: QUERYCACHE CACHED OBJECT ID WRAPPER IS NOT SERIALIZABLE

8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15

APAR status

• Closed as program error.

Error description

• Description: An OpenJPA internal type associated with wrapping
  Object IDs in the query cache function is not serializable.
  This can result in NotSerializableExceptions with cache
  plug-ins that serialize cacheable contents.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.0 using the built in Java         *
  *                  Persistence API (JPA) implementation with   *
  *                  a data/query cache that can serialize       *
  *                  object keys.                                *
  ****************************************************************
  * PROBLEM DESCRIPTION: A JPA operation fails with a            *
  *                      NotSerializableException targeting      *
  *                      QueryCacheStoreQuery$CachedObjectId     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A datatype internal to OpenJPA that is used to retain object ids
  associated with a query cache was not serializable.  Query
  caches not native to the OpenJPA distribution that can be
  configured to serialize object ids may fail with the following
  Exception:
  Caused by: java.io.NotSerializableException:
  org.apache.openjpa.datacache.QueryCacheStoreQuery$CachedObjectId
  at
  java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:
  1113)
  at
  java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:13
  43)
  at
  java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:
  1107)
  at
  java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:3
  25)
  

Problem conclusion

• The OpenJPA internal type QueryCacheStoreQuery$CachedObjectId
  has been updated to be Serializable.  This will permit query
  caches to serialize object ids.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.4.  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:

  PM57072

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

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R800 PSY

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