InfoManager Instance Stalls With java.lang.IllegalMonitorStateException In Instance Log

(Doc ID 2027031.1)

Last updated on JANUARY 11, 2018

Applies to:

Oracle Knowledge - Version 8.4.6 and later
Information in this document applies to any platform.


InfoManager instance becomes unresponsive. Within the instance log java.lang.IllegalMonitorStateException exceptions are present. Examination of thread dumps reveals many threads in the following state:

java.lang.Thread.State: WAITING
at sun.misc.Unsafe.park(Native Method)
- waiting to lock <64d7a649> (a java.util.concurrent.locks.ReentrantLock$NonfairSync) owned by "http-8226-8" t@145

with the owning thread in a state such as:

java.lang.Thread.State: WAITING
at java.lang.Object.wait(Native Method)
- waiting on <1045d588> (a com.webobjects.appserver.WOSessionStore$TimeoutEntry)
at java.lang.Object.wait(
at com.webobjects.appserver.WOSessionStore.checkOutSessionWithID(
at com.webobjects.appserver.WOApplication.restoreSessionWithID(
at er.extensions.appserver.ERXApplication.restoreSessionWithID(
at com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(
at com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(
at com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(
at com.webobjects.appserver.WOApplication.dispatchRequest(



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