EBS 12.2 Login Issue After Database Upgrade To 12c Error: The system has encountered an error when servicing the request with initialize class oracle.apps.fnd.common.WebAppsContext

(Doc ID 1987505.1)

Last updated on APRIL 06, 2017

Applies to:

Oracle Applications DBA - Version 12.1.3 to 12.2.4 [Release 12.1 to 12.2Cloud]
Information in this document applies to any platform.

Symptoms

On : 12.2.4 version,

EBS 12.2 Login Issue after Database Upgrade to 12c as per Doc ID 1926201.1 and successfully started the services.

When accessing the EBS login page in browser:

 

The system has encountered an error when servicing the request, Please try again. If the error persists, please contact the system administrator

In the Middle Tier log files following errors can be observed:

oacore_server1.out
-----------------
<Mar 7, 2015 7:48:22 AM EST> <Error> <ServletContext-/OA_HTML> <BEA-000000> <AppsLogin Servlet initialization failed ::
java.lang.NoClassDefFoundError: Could not initialize class oracle.apps.fnd.common.WebAppsContext
at oracle.apps.fnd.sso.Utils.getAppsContext(Utils.java:550)
at oracle.apps.fnd.sso.SessionMgr.loadInstalledLanguages(SessionMgr.java:4086)
at oracle.apps.fnd.sso.SessionMgr.getInstalledLanguages(SessionMgr.java:3872)
at oracle.apps.fnd.sso.Utils.getBaseInstalledLangCode(Utils.java:1491)
at oracle.apps.fnd.sso.Authenticator.<clinit>(Authenticator.java:45)

  
Truncated. see log file for complete stacktrace

oacore_server1.log

-----------------

####<Mar 7, 2015 7:41:01 AM EST> <Error> <HTTP> <ebsnp-xxxxx> <oacore_server1> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <0000KjoFsSR9DgALrah8iY1Kyj66000002> <1425732061112> <BEA-101165> <Could not load user defined filter in web.xml: oracle.apps.fnd.security.LeakDetectionFilter.
java.lang.NoClassDefFoundError: Could not initialize class oracle.apps.fnd.common.WebAppsContext
at oracle.apps.fnd.security.AppsServletFilter.init(AppsServletFilter.java:148)
at oracle.apps.fnd.security.LeakDetectionFilter.init(LeakDetectionFilter.java:69)
at weblogic.servlet.internal.FilterManager$FilterInitAction.run(FilterManager.java:343)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.FilterManager.loadFilter(FilterManager.java:96)
at weblogic.servlet.internal.FilterManager.preloadFilters(FilterManager.java:57)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1874)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3163)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1520)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:486)

...

####<Mar 7, 2015 7:41:01 AM EST> <Error> <HTTP> <ebsnp-xxxxx> <oacore_server1> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <0000KjoFsSR9DgALrah8iY1Kyj66000002> <1425732061114> <BEA-101165> <Could not load user defined filter in web.xml: oracle.apps.jtf.cabo.interceptor.JTFWrapperFilter.
java.lang.NullPointerException
at oracle.apps.jtf.cabo.interceptor.JTFWrapperFilter.init(JTFWrapperFilter.java:81)
at weblogic.servlet.internal.FilterManager$FilterInitAction.run(FilterManager.java:343)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.FilterManager.loadFilter(FilterManager.java:96)
at weblogic.servlet.internal.FilterManager.preloadFilters(FilterManager.java:57)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1874)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:3163)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1520)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:486)

...

####<Mar 7, 2015 7:48:22 AM EST> <Error> <ServletContext-/OA_HTML> <ebsnp-xxxxx> <oacore_server1> <[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <0054B8rNX7l9DgALrah8iY0003tK00000T> <1425732502746> <BEA-000000> <AppsLogin Servlet initialization failed ::
java.lang.NoClassDefFoundError: Could not initialize class oracle.apps.fnd.common.WebAppsContext
at oracle.apps.fnd.sso.Utils.getAppsContext(Utils.java:550)
at oracle.apps.fnd.sso.SessionMgr.loadInstalledLanguages(SessionMgr.java:4086)
at oracle.apps.fnd.sso.SessionMgr.getInstalledLanguages(SessionMgr.java:3872)
at oracle.apps.fnd.sso.Utils.getBaseInstalledLangCode(Utils.java:1491)
at oracle.apps.fnd.sso.Authenticator.<clinit>(Authenticator.java:45)
at oracle.apps.fnd.sso.Utils.<clinit>(Utils.java:675)
at oracle.apps.fnd.sso.AppsLoginRedirect.AppsSetting(AppsLoginRedirect.java:369)
at oracle.apps.fnd.sso.AppsLoginRedirect.init(AppsLoginRedirect.java:442)

  

 

Changes

EBS 12.2.4 Database Instance upgraded to 12c as per Doc ID 1926201.1 

Cause

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