APAR status
Closed as program error.
Error description
Error Message: unexpected NPE thrown from the Java code . Stack Trace: java.lang.NullPointerException at sun.reflect.GeneratedMethodAccessor352.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod AccessorImpl.java:55) at java.lang.reflect.Method.invoke(Method.java:508) ...... . This problem applies to all the platforms.
Local fix
Use Java option -Xjit:disablePRE. Notice this option disables an optimization and might have a performance impact.
Problem summary
The problem is caused by a JIT compiler optimization named partial redundancy elimination. This optimization incorrectly removes the assignment of a certain variable from some code path.
Problem conclusion
The optimization has been fixed to generate the correct code. Further details can be found in https://github.ibm.com/runtimes/openj9-omr/pull/65 . This APAR will be fixed in the following Java Releases: 8 SR6 FP7 (8.0.6.7) . 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
IJ23079
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-02-27
Closed date
2020-02-27
Last modified date
2020-02-27
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
[{"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:
27 February 2020