I had to comment out the definition of a property using a formula in both "/hibernate-tools/src/test/org/hibernate/tool/hbm2x/Product.hbm.xml" and "/hibernate-tools/src/test/org/hibernate/tool/hbm2x/Order.hbm.xml" to make the test suite run after cleaning up the code of "hibernate-tools/src/test/org/hibernate/tool/hbm2x/OtherCfg2HbmTest.java". Most certainly something that is not supported anymore since Hibernate 5 but it needs investigation.