APAR status
Closed as program error.
Error description
Error Message: An unexpected ArrayIndexOutOfBounds Exception is thrown. . Stack Trace: One possible stack trace is: java/math/BigDecimal.powerOfTenBI java/math/BigDecimal.slPrecisionDivide java/math/BigDecimal.divide . This problem is specific to the IBM Z 31bit JDK. This problem was exposed in Java 8 SR5 FP25.
Local fix
The problem can be avoided using the following command line option -Xjit:disableLongRegAllocation
Problem summary
The 31bit code generator on IBM Z has been improved to use 64bit registers for 64bit values. These 64bit values were not being handled in a consistent way for some code paths with respect to mapping variables to registers and stack slots. As a result, various problems can occur with a 64bit variable including loss of the high or low 32bits, or getting garbage (including zero) in the low or high half. In the known case, the low half of a Java long is lost resulting in it being zero leading to an ArrayIndexOutOfBounds Exception which should not happen.
Problem conclusion
This issue has been addressed by https://github.com/eclipse/omr/pull/3337 . This APAR will be fixed in the following Java Releases: 8 SR5 FP27 (8.0.5.27) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IJ12196
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-12-17
Closed date
2018-12-17
Last modified date
2018-12-17
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
JIT
Fixed component ID
620700124
Applicable component levels
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"130","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
17 December 2018