APAR status
Closed as program error.
Error description
Error Message: An unexpected java.lang.NullPointerException is thrown. . Stack Trace: N/A . The reported line number indicates that no object is being dereferenced or an object is being dereferenced but the semantics of the method imply that the object cannot be null.
Local fix
This issue can be worked around on a specific method using the Java option -Xjit:{package/Class.method(signature)}(disableLocalCSE) Note that this option may degrade the performance of the specific method on which it is used.
Problem summary
The problem occurs when an optimization called Local Common Sub-expression Elimination decides to 'common' two expressions which are only used for metadata purposes in the JIT compiler. Such expressions should never be 'commoned' together.
Problem conclusion
The JIT compiler has been updated to prevent 'commoning' of metadata expressions. . This APAR will be fixed in the following Java Releases: 8 SR2 FP10 (8.0.2.10) 7 R1 SR3 FP30 (7.1.3.30) 6 SR16 FP20 (6.0.16.20) 7 SR9 FP30 (7.0.9.30) . 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
IV80396
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-01-15
Closed date
2016-01-15
Last modified date
2016-01-15
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
R600 PSY
UP
R260 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:
15 January 2016