Creating a DDL in the Maven build with the hibernate3-maven-plugin fails if you explicitly configure an array of javax.persistence.CascadeType values in your JPA annotations. The stacktrace is similar to javax.persistence.PersistenceException: [PersistenceUnit: spontacts] Unable to configure EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265) at org.codehaus.mojo.hibernate3.configuration.JPAComponentConfiguration.createConfiguration(JPAComponentConfiguration.java:28) … Caused by: java.lang.ArrayStoreException: sun.reflect.annotation.EnumConstantNotPresentExceptionProxy at sun.reflect.annotation.AnnotationParser.parseEnumArray(AnnotationParser.java:673) at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:462) Once I realized what the actual […]