Fixes are available
8.0.0.2: WebSphere Application Server V8.0 Fix Pack 2
8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
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
A ConcurrentModificationException should be thrown if the list over which it is currently iterating is modified structurally - that is, items are added or removed. But the SDO implementation is a bit too sensitive, and it is triggering this exception even when a property of one of the DataObjects in the list is changed.
Local fix
using the CopyOnWriteArrayList because it does not use an iterator over the original List, and it is correct to iterate over this list in this way because the structure is not actually changing.
Problem summary
**************************************************************** * USERS AFFECTED: Users of the SDO API in IBM WebSphere * * Application Server V8.0 and WebSphere * * Process Server * **************************************************************** * PROBLEM DESCRIPTION: ConcurrentModificationException when * * iterating an SDO list * **************************************************************** * RECOMMENDATION: * **************************************************************** When iterating over the list of DataObjects for a many-valued property of a complex type, a ConcurrentModificationException may be thrown if any of the DataObjects in the list are modified, for example, by setting a property. A ConcurrentModificationException should be thrown if the list is modified structurally by adding, removing, or replacing DataObjects, but simply setting a property of one of the original DataObjects should not cause this exception. Currently, this type of modification causes changes in the internal SDO list implementation that, to an Iterator, will appear to be structural in nature. In response, an Iterator may raise a ConcurrentModificationException.
Problem conclusion
The list implementation has been corrected such that setting a property on a DataObject within a list will not result observable changes that an Iterator may assume to be structural. The fix for this APAR is currently targeted for inclusion in fix pack 8.0.0.2. 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 number
PM47832
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-09-14
Closed date
2011-09-14
Last modified date
2011-09-15
APAR is sysrouted FROM one or more of the following:
PM45922
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
UP
Document Information
Modified date:
28 October 2021