Hibernate exception "java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.String".
Issue
- Hibernate exception "java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.String":
Caused by: java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.String
at org.hibernate.validator.NotEmptyValidator.isValid(NotEmptyValidator.java:36)
at org.hibernate.validator.ClassValidator.getPotentialInvalidValues(ClassValidator.java:524)
at org.richfaces.validator.HibernateValidator.validateClass(HibernateValidator.java:96)
at org.richfaces.validator.HibernateValidator.validateBean(HibernateValidator.java:162)
at org.richfaces.validator.HibernateValidator.validate(HibernateValidator.java:137)
...
Environment
- JBoss Enterprise Application Platform 5.1.0 (EAP).
Resolution
This exception occurs because @NotEmpty hibernate annotation is attached to entity attribute of type Date. The annotation @NotEmpty contains @Size(min = 1) and @Sizs supports only String, Collection, Map and Array. You may consider changing @NotEmpty to @NotNull for Date objects.
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