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webMethods Knowlegebase : ConcurrentModificationException in fMemoryManager (1784494)

Troubleshooting


Problem

The UM server encounters ConcurrentModificationExceptions when cleaning up memory.

class java.util.ConcurrentModificationException

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)

at java.util.ArrayList$Itr.next(ArrayList.java:831)

at com.pcbsys.foundation.memory.fMemoryManager.callMemoryUsers(fMemoryManager.java:673)

at com.pcbsys.foundation.memory.fMemoryManager.execute(fMemoryManager.java:620)

at com.pcbsys.foundation.memory.fMemoryManager.run(fMemoryManager.java:588)

at com.pcbsys.foundation.threads.fThread.localRun(fThread.java:213)

at com.pcbsys.foundation.threads.hThread.run(hThread.java:93)

at java.lang.Thread.run(Thread.java:745)

Document Location

Worldwide

[{"Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSVYEV","label":"IBM webMethods Integration"},"ARM Category":[{"code":"a8mKe00000000AQIAY","label":"Software AG Universal Messaging (NUM)"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Red Hat Enterprise Linux"}],"Version":"9.10"},{"Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSFIWYE","label":"IBM webMethods B2B"},"ARM Category":[{"code":"a8mKe00000000AQIAY","label":"Software AG Universal Messaging (NUM)"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Red Hat Enterprise Linux"}],"Version":"9.10"}]

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Document Information

Modified date:
20 March 2025

UID

ibm17211314

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