org.hibernate.dialect.Dialect not found

I am using hibernate-core-4.2.7.SP1-redhat-3.jar for Hibernate.  When I run Liquibase diffDatabaseToChangeLog from ant I get the warnings below.  I tried Liquibase jars liquibase-hibernate4.2-3.5.jar and liquibase-hibernate4-3.5.jar.  Neither works.  I looked up org.hibernate.dialect.Dialect and it hasn’t been in hibernate jars for a while.  Is there a different hibernate integration jar that will work?

diff-against-hibernate:
[liquibase:diffDatabaseToChangeLog] Starting Liquibase.
[liquibase:diffDatabaseToChangeLog] WARNING 3/21/16 4:59 PM: liquibase: Can not use class liquibase.ext.hibernate.database.HibernateSpringDatabase as a Liquibase service because org.hibernate.dialect.Dialect is not in the classpath
[liquibase:diffDatabaseToChangeLog] WARNING 3/21/16 4:59 PM: liquibase: Can not use class liquibase.ext.hibernate.database.HibernateClassicDatabase as a Liquibase service because org.hibernate.dialect.Dialect is not in the classpath
[liquibase:diffDatabaseToChangeLog] WARNING 3/21/16 4:59 PM: liquibase: Can not use class liquibase.ext.hibernate.database.HibernateEjb3Database as a Liquibase service because org.hibernate.dialect.Dialect is not in the classpath