APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A . Execution speed drops relative to Java 8 SR1 in a workload that makes heavy use of character conversion into EBCDIC code page 1388.
Local fix
Problem summary
The JIT compiler applied a fine grain optimization as part of its loop optimizing strategies. In this case, for overall method performance, it decreased it more than it increased it.
Problem conclusion
The JIT compiler has been modified to avoid applying this optimization in this case. . This APAR will be fixed in the following Java Releases: 8 SR2 FP10 (8.0.2.10) . 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
IV80560
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-01-19
Closed date
2016-01-19
Last modified date
2016-01-19
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
R130 PSY
UP
[{"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:
19 January 2016