Fixes are available
PM63290; 7.0.0.23: decimalformat clone fails in multi-threaded scenarios
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
APAR status
Closed as program error.
Error description
Abstract: com.ibm.icu.text.DecimalFormat.clone creates decimal format instances which operate incorrectly in multi-threaded scenarios. (See ICU ticket #5358.) Description: When new instances of com.ibm.icu.text.DecimalFormat are created using DecimalFormat.clone() the new instance shares state with the initial DecimalFormat instance. As a result, use of the initial instance in a first thread is not safe with the concurrent use of the new clone instance in a second thread. This problem was reported as ICU ticket #5358. For more information, see: http://bugs.icu-project.org/trac/ticket/5358
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server v7.0 with applications using the * * ICU4J library * **************************************************************** * PROBLEM DESCRIPTION: The NumberFormat parse function can * * return an incorrect value for a * * decimal number. * **************************************************************** * RECOMMENDATION: * **************************************************************** When parsing a decimal number, NumberFormat can intermittently return an incorrect result which will cause the application to process with an invalid value. The DecimalFormat clone method does not create a new DigitList object for each new DecimalFormat instance, resulting in multiple instances of DecimalFormat sharing the same DigitList. If multiple threads enter parsing simultaneously, this can cause the result on one thread to be corrupted by processing on another thread.
Problem conclusion
DecimalFormat has been updated to prevent cross thread corruption. This error will not occur on WebSphere Application Server V8.0 and later due to its use of a later version of ICU4J. The fix for this APAR is currently targeted for inclusion in fix pack 7.0.0.25. 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
PM63290
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-04-25
Closed date
2012-06-11
Last modified date
2012-06-11
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
WEBSPHERE APP S
Fixed component ID
5724J0800
Applicable component levels
R700 PSY
UP
Document Information
Modified date:
28 October 2021