APAR status
Closed as program error.
Error description
Error Message: The JVM throws an unexpected IllegalMonitorStateException . Stack Trace: N/A . This problem has only been observed on iSeries.
Local fix
Problem summary
The problem occurs when synchronizing on an object that does not have a lock word. Array objects never have a lock word. The -Xlockword command-line option controls the lock word for all other objects.
Problem conclusion
This defect will be fixed in: 7.0.0 SR1 6.0.1 SR1 . The problem was caused by a missing cast in the mechanism used by the JVM to associate a monitor with an object that does not have a lock word. This could result in multiple monitors being associated with a single object. Consequently, the JVM could attempt to exit a different monitor than the one that had previously been entered.
Temporary fix
Comments
APAR Information
APAR number
IV20646
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-05-04
Closed date
2012-05-04
Last modified date
2012-05-04
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
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R260 PSY
UP
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Document Information
Modified date:
22 February 2022