APAR status
Closed as program error.
Error description
Logging code inside the makeConnections() method in the ClientConnectionManager class iterates through a HashMap containing the list of Connections outside of a Synchronized code block. This means that if a new connection is created at the same time as the logging then we throw the exception. Additional Symptom(s) Search Keyword(s):ConcurrentModificationException, TCPIP client, makeConnections() method, ClientConnectionManager class
Local fix
Place the logging code inside a Synchronized code block.
Problem summary
**************************************************************** USERS AFFECTED: All users of IBM Integration Bus enabling trace for TCPIP outbound client connections. Platforms affected: MultiPlatform, z/OS **************************************************************** PROBLEM DESCRIPTION: Concurrent TCPIP client connections to an external TCPIP server used the same tracing logic whilst creating each connection. This meant that if many client connections were created at the same time the tracing logic deadlocked. Synchronisation has been added to avoid this deadlock.
Problem conclusion
Multiple concurrent TCPIP client connections can now be created at the same time whilst tracing is enabled. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v10.0 10.0.0.12 The latest available maintenance can be obtained from: http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041 If the maintenance level is not yet available,information on its planned availability can be found on: http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT22281
Reported component name
INTEGRATION BUS
Reported component ID
5724J0540
Reported release
A00
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-09-06
Closed date
2018-03-21
Last modified date
2018-03-21
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
INTEGRATION BUS
Fixed component ID
5724J0540
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSNQK6","label":"IBM Integration Bus"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
21 March 2018