APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A .
Local fix
Problem summary
When a Class fails to initialize, the exception that caused the failure is stored as a WeakReference, to allow class unloading to occur. However, since its a WeakReference, the exception is discarded after the first gc, which when using gencon could be the next scavenge. In this issue arises, a java.lang.NoClassDefFoundError would be thrown and the result of the getCause() doesn't contain original exception information such as following stacktrace. java.lang.NoClassDefFoundError: defects.cmvc195512.FailToInit (initialization failure) at java.lang.J9VMInternals.initializationAlreadyFailed(J9VMInternal s.java:236) at java.lang.J9VMInternals.initialize(J9VMInternals.java:307) at defects.cmvc195512.TestFailedInit.fail(TestFailedInit.java:57) at defects.cmvc195512.TestFailedInit.test(TestFailedInit.java:40) at defects.cmvc195512.TestFailedInit.main(TestFailedInit.java:9)
Problem conclusion
This defect will be fixed in: 7.0.0 SR5 6.0.1 SR6 . A SoftReference is used of a WeakReference so the exception is retained for a longer period of time.
Temporary fix
Comments
APAR Information
APAR number
IV43173
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
2013-05-27
Closed date
2013-05-27
Last modified date
2013-05-27
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
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R260 PSY
UP
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Document Information
Modified date:
21 February 2022