OEM 12C Is Unable To Start Due To Adminserver Failure (Doc ID 1487417.1)

Last updated on JULY 01, 2016

Applies to:

Oracle WebLogic Server - Version 12.1.1.0 and later
Information in this document applies to any platform.
***Checked for relevance on 29- April-2014***

Symptoms

On : 12c version, WLS Core Components

When attempting to start the admin server, the following error occurs.

ERROR
EMGC_ADMINSERVER.out:

Caused By: org.xml.sax.SAXParseException: : XML-20108: (Fatal Error) Start of root element expected.
at oracle.ods.virtualization.engine.config.parsers.ConfigErrorHandler.fatalError(ConfigErrorHandler.java:101)
at oracle.xml.parser.v2.XMLError.flushErrorHandler(XMLError.java:432)
at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:287)
at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:381)
at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:322)
....

Caused By: org.xml.sax.SAXParseException: <Line 1, Column 1>: XML-20108: (Fatal Error) Start of root element expected.
at oracle.ods.virtualization.engine.config.parsers.ConfigErrorHandler.fatalError(ConfigErrorHandler.java:101)
at oracle.xml.parser.v2.XMLError.flushErrorHandler(XMLError.java:432)
at oracle.xml.parser.v2.XMLError.flushErrors1(XMLError.java:287)
at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:381)
at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:322)
Truncated. see log file for complete stacktrace
>
<Aug 23, 2012 11:26:34 AM PDT> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FAILED>
<Aug 23, 2012 11:26:34 AM PDT> <Error> <WebLogicServer> <BEA-000383> <A critical service failed. The server will shut itself down>
<Aug 23, 2012 11:26:34 AM PDT> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN>
<Aug 23, 2012 11:26:35 AM> <FINEST> <NodeManager> <Waiting for the process to die: 5636130>
<Aug 23, 2012 11:26:35 AM> <INFO> <NodeManager> <Server failed during startup so will not be restarted>
<Aug 23, 2012 11:26:35 AM> <FINEST> <NodeManager> <runMonitor returned, setting finished=true and notifying waiters>

Cause

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