BEA-149205 Failed to initialize the application 'em' due to error java.lang.ClassNotFoundException: javax.faces.application.ProjectStage

Issue: After the upgrade of ADF from 11.1.1.6 to 11.1.2.2(by applying Patch 13656372 & 13656274), when we tried to access the weblogic EM page it was not coming up and throwing some error. In the logfile the below mentioned logs were present:

<Error> <Deployer> <BEA-149205> <Failed to initialize the application 'em' due to error java.lang.ClassNotFoundException: javax.faces.application.ProjectStage.
java.lang.ClassNotFoundException: javax.faces.application.ProjectStage
        at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297)
        at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
        at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass(ChangeAwareClassLoader.java:64)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

Web Page:

Solution: After applying the patches we need to Upgrade the ADF component of the domain which was missed.

Follow the below steps to Upgrade the ADF component in domain.

1. Go to location  MW_HOME/oracle_common/common/bin
2. Invoke wlst.sh
3. Execute the command
upgradeADF('/u01/app/oracle/product/Middleware/user_projects/domains/<your_domain_name>')