当GWT2.4与Hibernate整合时会出现
Caused by: org.hibernate.HibernateException: Unable to build the default ValidatorFactory
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:383) [hibernate-core-3.6.6.Final.jar:3.6.6.Final]
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.applyDDL(TypeSafeActivator.java:109) [hibernate-core-3.6.6.Final.jar:3.6.6.Final]
... 91 more
Caused by: javax.validation.ValidationException: Unable to find a default provider
at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:264) [validation-api-1.0.0.GA.jar:]
at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:111) [validation-api-1.0.0.GA.jar:]
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:380) [hibernate-core-3.6.6.Final.jar:3.6.6.Final]
... 92 more
这是因为Gwt2.4中带有validation-api-1.0.0.GA.jar
取消validation-api-1.0.0.GA.jar这个即可