Fix prob wrt 3.0 change to ValueInstantiator impl

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/deser/ValueInstantiator.java

@@ -163,8 +163,6 @@ public SettableBeanProperty[] getFromObjectArguments(DeserializationConfig confi
      * non-null type is returned, deserializer will bind JSON into specified
      * type (using standard deserializer for that type), and pass that to
      * instantiator.
-     *
-     * @since 2.7
      */
     public JavaType getArrayDelegateType(DeserializationConfig config) { return null; }
 
@@ -407,7 +405,7 @@ public Base(Class<?> type) {
         public Base(JavaType type) {
             _valueType = type.getRawClass();
         }
-        
+
         @Override
         public String getValueTypeDesc() {
             return _valueType.getName();

src/main/java/com/fasterxml/jackson/databind/util/ConstantValueInstantiator.java

@@ -9,8 +9,6 @@
  * Trivial {@link ValueInstantiator} implementation that will simply return constant
  * {@code Object} it is configured with. May be used as-is, or as base class to override
  * simplistic behavior further.
- *
- * @since 2.9.4
  */
 public class ConstantValueInstantiator extends ValueInstantiator
 {
@@ -35,4 +33,9 @@ public Class<?> getValueClass() {
     public Object createUsingDefault(DeserializationContext ctxt) throws IOException {
         return _value;
     }
+
+    @Override
+    public String getValueTypeDesc() {
+        return _value.getClass().getName();
+    }
 }