WCC service fails to start

Document ID : KB000095652
Last Modified Date : 18/07/2018
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CA-wcc service crashes after updating the $CA_WCC_INSTALL_LOCATION/tomcat/conf/server.xml file

CA-wcc.log shows below messages: 
WARNING: Unable to load server configuration from [/opt/CA/WorkloadCC/tomcat/conf/server.xml] 
INFO  org.apache.catalina.startup.Catalina load 
WARNING: Permissions incorrect, read permission is not allowed on the file.
Workload Control Center directory is owned by non-root user but the server.xml file has ownership of root user. 
Change the ownership of server.xml file to non-root user (from root) that owns WCC install