APAR status
Closed as program error.
Error description
Error Message: The copying of one byte array to another unexpectedly terminates when 0xFF is read from the source array. . Stack Trace: N/A . This problem can only happen on z Systems.
Local fix
The problem can be avoided using the following Java option: -Xjit:disableIdiomRecognition Note that this may impact performance.
Problem summary
As part of the JIT compiler's attempts to optimize loops, it is possible that the compiler may not properly recognize a byte array copy and mistakenly insert a stopping condition. This causes the copy to terminate when the value 0xFF is read from the source array when the copying should have continued for the entire length of the source array.
Problem conclusion
The JIT compiler has been updated to prevent incorrectly inserting a stopping condition into byte array copying loops. . This APAR will be fixed in the following Java Releases: 6 R1 SR8 FP40 (6.1.8.40) 8 SR4 (8.0.4.0) 6 SR16 FP40 (6.0.16.40) 7 R1 SR4 (7.1.4.0) 7 SR10 (7.0.10.0) . 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
IV92360
Reported component name
JIT
Reported component ID
620700124
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-01-17
Closed date
2017-01-17
Last modified date
2017-01-17
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
R260 PSY
UP
R130 PSY
UP
R600 PSY
UP
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Document Information
Modified date:
17 January 2017