title: Unknown name value [] for enum class
body: <p>I got below stacktrace
     Exception in thread "main" java.lang.IllegalArgumentException: Unknown name value [NC-17] for enum class [com.ecw.pojo.Rating]
      at org.hibernate.type.EnumType$NamedEnumValueMapper.fromName(EnumType.java:467)
      at org.hibernate.type.EnumType$NamedEnumValueMapper.getValue(EnumType.java:452)
      at org.hibernate.type.EnumType.nullSafeGet(EnumType.java:107)
      at org.hibernate.type.CustomType.nullSafeGet(CustomType.java:127)
      at org.hibernate.type.AbstractType.hydrate(AbstractType.java:106)
      at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2969)
      at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1695)
      at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1627)
      at org.hibernate.loader.Loader.getRow(Loader.java:1514)
      at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:725)
      at org.hibernate.loader.Loader.processResultSet(Loader.java:952)
      at org.hibernate.loader.Loader.doQuery(Loader.java:920)
      at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
      at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:324)
      at org.hibernate.loader.Loader.loadCollection(Loader.java:2263)
      at org.hibernate.loader.collection.plan.LegacyBatchingCollectionInitializerBuilder$LegacyBatchingCollectionInitializer.initialize(LegacyBatchingCollectionInitializerBuilder.java:105)
      at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:693)
      at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:92)
      at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:1893)
      at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:555)
      at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:260)
      at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:551)
      at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:140)
      at org.hibernate.collection.internal.PersistentSet.toString(PersistentSet.java:316)
      at java.lang.String.valueOf(String.java:2994)
      at java.io.PrintStream.println(PrintStream.java:821)
      at util.TestMapping.main(TestMapping.java:35)</p>
  
  <pre><code>My enum class as below
  
  public enum Rating {
  
      G("G"),
      PG("PG"),
      PG13("PG-13"),
      R("R"),
      NC17("NC-17");
  
      private String value;
  
      private Rating(String value) {
          this.value = value;
      }
  
      public String getValue() {
          return value;
      }
  
      public void setValue(String value) {
          this.value = value;
      }
  
      public String toString() {
          return this.value; //will return , or ' instead of COMMA or APOSTROPHE
      }
  }
  </code></pre>
  
  <p>And in entity as below</p>
  
  <pre><code>@Column(name = "rating")
  @Enumerated(EnumType.STRING)
  private Rating rating;
  </code></pre>