OAM 11g: Errors Starting Oam_server For OAM "AMInitServlet" failed to preload on startup in Web application: "oam" (Doc ID 1471671.1)

Last updated on SEPTEMBER 19, 2016

Applies to:

Oracle Access Manager - Version 11.1.1.5.0 and later
Information in this document applies to any platform.

Symptoms

Installation and configuration was successful for OAM, but trying to start the server fails with this error:

Invoking Start Up operation for application oam_server on target oam_server1.
[Deployer:149192]Operation 'start' on application 'oam_server' is in progress on 'oam_server1'
[Deployer:149193]Operation 'start' on application 'oam_server' has failed on 'oam_server1'
[Deployer:149034]An exception occurred for task [Deployer:149026]start application oam_server on oam_server1.: [HTTP:101216]Servlet: "AMInitServlet" failed to preload on startup in Web application: "oam".
java.lang.ExceptionInInitializerError
at oracle.security.am.engines.sso.adapter.AbstractSessionAdapterImpl.checkAndInit(AbstractSessionAdapterImpl.java:90)
at oracle.security.am.engines.sso.adapter.AbstractSessionAdapterImpl.(AbstractSessionAdapterImpl.java:73)
at oracle.security.am.engines.sso.adapter.MultipleUserSessionAdapterImpl.(MultipleUserSessionAdapterImpl.java:56)
at oracle.security.am.engines.sso.adapter.MultipleUserSessionAdapterImpl.(MultipleUserSessionAdapterImpl.java:45)
at oracle.security.am.engines.sso.adapter.SessionManagementAdapterFactory.getAdapter(SessionManagementAdapterFactory.java:46)
at oracle.security.am.engines.enginecontroller.SSOEngineController.processEvent(SSOEngineController.java:602)
at oracle.security.am.controller.MasterController.processEvent(MasterController.java:354)
at oracle.security.am.controller.MasterController.processRequest(MasterController.java:517)
at oracle.security.am.controller.MasterController.process(MasterController.java:457)
at oracle.security.am.pbl.transport.http.AMInitServlet.initializeAmServer(AMInitServlet.java:137)
at oracle.security.am.pbl.transport.http.AMInitServlet.init(AMInitServlet.java:79)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:283)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs

Cause

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