Can confirm this affects 5.x, we received this setting rootlogger to DEBUG level.

Hibernate: 5.2.3.Final
Spring: 4.3.3.RELEASE

Stack trace:
java.lang.NullPointerException
at org.hibernate.pretty.MessageHelper.collectionInfoString(MessageHelper.java:265)
at org.hibernate.event.internal.EvictVisitor.evictCollection(EvictVisitor.java:64)
at org.hibernate.event.internal.EvictVisitor.evictCollection(EvictVisitor.java:55)
at org.hibernate.event.internal.EvictVisitor.processCollection(EvictVisitor.java:36)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:104)
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:65)
at org.hibernate.event.internal.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:59)
at org.hibernate.event.internal.AbstractVisitor.process(AbstractVisitor.java:126)
at org.hibernate.event.internal.DefaultEvictEventListener.doEvict(DefaultEvictEventListener.java:122)
at org.hibernate.event.internal.DefaultEvictEventListener.onEvict(DefaultEvictEventListener.java:79)
at org.hibernate.internal.SessionImpl.fireEvict(SessionImpl.java:1350)
at org.hibernate.internal.SessionImpl.evict(SessionImpl.java:1343)
at org.springframework.orm.hibernate5.HibernateTemplate$9.doInHibernate(HibernateTemplate.java:583)
at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:359)
at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:326)
at org.springframework.orm.hibernate5.HibernateTemplate.evict(HibernateTemplate.java:580)
at xx.xxx.xxxxx.server.BaseDAOImpl.evictAll(BaseDAOImpl.java:247)