There's a Maven plugin for the older tools line and Hibernate 3.6.x: http://mojo.codehaus.org/maven-hibernate3/hibernate3-maven-plugin/. There's nothing similar for Hibernate 4.x which is a pity. Please either:

• provide a new Maven plugin from under the JBoss/Hibernate umbrella or
• take the hibernate3-maven-plugin guys under your wings and have them upgrade their plugin