APAR status
Closed as program error.
Error description
Error Message: Any test failures caused by wrong return value from java/lang/Integer.numberOfLeadingZeros. This method is also called in a lot of JCL code. . Stack Trace: N/A .
Local fix
-Xjit:disableBitOpcode
Problem summary
In the implementation of java/lang/Integer.numberOfLeadingZeros, JIT compiler uses 64-bit registers for a 32-bit operation, resulting in a wrong return value. This problem is only seen on Java8 x86 64-bit JVM
Problem conclusion
The JIT compiler has been changed to use the correct register. . This APAR will be fixed in the following Java Releases: 8 SR2 (8.0.2.0) . 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
IV73740
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-05-29
Closed date
2015-05-29
Last modified date
2015-05-29
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
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Document Information
Modified date:
29 May 2015