ERROR org.springframework.web.context.ContextLoader- Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from input stream

Reason: Plugin folder has multiple version of the same plugin. E.g. 

Solution:

1. Delete the older versions of the plugin jars. I.e. keep only one file per JAR.
2. Restart Tomcat server.

Error: "Invocation of init method failed; nested exception is liquibase.exception.DatabaseException:" com.mysql.MysqlDataTruncation:  Data : Data too long for column 'AUTHOR' at row.

Reason: Due to failure of changeset "<changeSet id="vgaikwad" author="Add import rights to all roles having create, update and delete rights on resource" dbms="mysql">"

Solution:

• Stop OpenSpecimen service (Tomcat)
  
• Login to Database.
• Fire this query: alter table databasechangelog change author author varchar(255);
• Start OpenSpecimen service (Tomcat)