APAR status
Closed as program error.
Error description
Error Message: Customer is getting an assert when running in FSD mode after setting a break point: j9codertvm(j9ji.104 * ** ASSERTION FAILED ** at decomp.cpp:584: (((IDATA)pendingStackHeight >= 0))" . Stack Trace: {getPendingStackHeight__FP10J9VMThreadPUcP8J9MethodUl} {libj9jit29.so}{initializeOSRFrame__FP10J9VMThreadP9J9OSRData} {libj9jit29.so}{initializeOSRBuffer__FP10J9VMThreadP11J9OSRBuffe rP9J9OSRData} {libj9jit29.so}{addDecompilation__FP10J9VMThreadP16J9StackWalkSt ateUl} {libj9jit29.so}{decompileAllFrameIterator__FP10J9VMThreadP16J9St ackWalkState@AF63_53} {libj9vm29.so} {walkFrame} .
Local fix
Problem summary
The problem happens when Java program transfer its execution from the JIT compiled code to the interpreter at the monitor enter of an inlined synchronized method. The interpreter expects a different stack height than the one describe by the JIT compiled code.
Problem conclusion
The JIT compiled code has been fixed to make sure the stack shape is consistent with what the interpreter expects. . This APAR will be fixed in the following Java Releases: 8 SR5 FP21 (8.0.5.21) Except with z/OS where this APAR is fixed in: 8 SR5 FP22 (8.0.5.22) . 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
IJ08503
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-08-15
Closed date
2018-08-30
Last modified date
2018-09-19
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:
19 September 2018