APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A .
Local fix
N/A
Problem summary
A small throughput of regression of 1-2% might be observed in Java 8 SR5 when shared class cache is turned on by using option '-Xshareclasses' in the java command. This is caused by changes to internal String implementation.
Problem conclusion
The JIT has been improved to recover the lost performance . This APAR will be fixed in the following Java Releases: 8 SR5 FP5 (8.0.5.5) . 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
IJ02004
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-11-17
Closed date
2017-11-17
Last modified date
2017-11-17
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
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:
17 November 2017