Re: EBS login page not opening after db upgrade

Posted by ErmanArslansOracleBlog on Dec 01, 2022; 6:25am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/EBS-login-page-not-opening-after-db-upgrade-tp11287p11299.html

We don't see any records for AppsLogin or AppsLocalLogin in  the Apache log, but you have the following in the application log of oacore oc4j;

22/11/24 15:19:07.609 html: Error initializing servlet
java.lang.IllegalAccessError: tried to access method oracle.xml.jaxp.JXDocumentBuilder.<init>()V from class oracle.xml.jaxp.JXDocumentBuilderFactory
        at oracle.xml.jaxp.JXDocumentBuilderFactory.newDocumentBuilder(JXDocumentBuilderFactory.java:73)


"and"

22/11/24 15:19:07.610 html: Error preloading servlet
javax.servlet.ServletException: Error initializing servlet
        at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5033)
        at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)

So, the HTTP Servlet can not be initalized.

No direct applicable nots found in MOS.

Please check "Interoperability Notes: Oracle E-Business Suite Release 12.0 or 12.1 with Oracle Database 12c Release 1 (12.1.0) (Doc ID 1524398.1)" and ensure you have the required patches applied in your system.. This seems like an issue caused by skipping (not doing) some tasks that are supposed to be done in the EBS database upgrade.

Here we have a simiar issue, but it is for Concurrent Tier.. There is a patch for the resolution.. This patch will not your problem, but it indicates you may be missing some of the required patches in your system..
Concurrent Request Fails With Error "java.lang.IllegalAccessError" In EBS Database After 19c Upgrade (Doc ID 2678299.1)

*So, review "Interoperability Notes: Oracle E-Business Suite Release 12.0 or 12.1 with Oracle Database 12c Release 1 (12.1.0) (Doc ID 1524398.1)"