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Primary Note for ActionLookupFailedException Occurring in WebLogic Portal (WLP) Environment (Doc ID 1447577.1)

Last updated on FEBRUARY 07, 2024

Applies to:

Oracle WebLogic Portal - Version 9.2.0 to 10.3.7 [Release Weblogic Platform to AS10gR3]
Information in this document applies to any platform.


This Primary Note addresses the ActionLookupFailedException that sometimes occurs while running a WebLogic Portal (WLP) Application. The exception is unrecoverable and normally requires a reboot of the server(s). In some cases the exception may still exist even after rebooting the server(s).

Although the ActionLookupFailedException manifests itself during run-time of a WLP Application, normally inside of a pageflow portlet, the underlying root cause of the exception may be a WLP, WebLogic Server (WLS), WebLogic Workshop (WLW) or Oracle Enterprise Pack for Eclipse (OEPE) issue. There are various causes to this issue. The ActionLookupFailedException is a generic wrapper exception so all ActionLookupFailedException issues are not the same. It happens in a variety of different ways within WLP applications and has been observed across all WLP versions.

Note: Some of the patches referenced in this document that resolve the ActionLookupFailedException are not WLP patches, but WLS, WLW and OEPE patches.

This Primary Note is set up in the following format. Since there are different ActionLookupFailedException issues that all have a unique symptom, cause and solution, each known issue will be listed separately with its own Symptom, Cause and Solution. If you are encountering an ActionLookupFailedException issue that is not resolved by any of the patches mentioned in this note then you might be running into an unknown issue for which a new root cause analysis must be performed by Oracle Support. In this case please open a Service Request with Oracle Support.




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In this Document
 ActionLookupFailedException due to IllegalStateException
 ActionLookupFailedException caused by NullPointerException on BufferedJspContext$BufferedResponse.flushBuffer()
 ActionLookupFailedException, NullPointerException, ClassCastException and NotSerializableException
 ActionLookupFailedException and ConcurrentModificationException from DeferredSessionStorageHandler
 ActionLookupFailedException while integrating Struts Tiles with WLP
 Content Presenter Portlet fails with ActionLookupFailedException
 ActionLookupFailedException caused by NumberFormatException
 ActionLookupFailedException caused by ClassCastException
 ActionLookupFailedException caused by ClassNotFoundException
 ActionLookupFailedException caused by NullPointerException (WLP)
 ActionLookupFailedException caused by NullPointerException (WLW)
 ActionLookupFailedException caused by WLS SecurityException
 ActionLookupFailedException combined with HTTP 503 error
 ActionLookupFailedException caused by WLW AssertionError
 Clearing Server Caches
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