WebLogic Portal (WLP) Admin Tool (PAT) Throws Exception "An error occurred while parsing DA Hierarchy : Document is invalid: no grammar found" Due to a Third Party XML Parser Conflict (Doc ID 985388.1)

Last updated on FEBRUARY 14, 2017

Applies to:

Oracle WebLogic Portal - Version 8.1 and later
Information in this document applies to any platform.
***Checked for relevance on 02-Oct-2012***

Symptoms

Using a third party product that uses the xercesImpl.jar.  When including the xercesImpl.jar file in the ClassPath, the WebLogic Portal (WLP) Admin Tool (PAT) application fails during login with the following error:

An exception has been thrown while trying to render this page.
Exception Message: An error occurred while parsing DA Hierarchy : Document is invalid: no grammar found.

Cause

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