Fixed #1438

release-notes/CREDITS

@@ -368,6 +368,8 @@ Ievgen Pianov (pyanoveugen@github)
 Jayson Minard (apatrida@github)
   * Reported #1005: Synthetic constructors confusing Jackson data binding
    (2.6.4)
+  * Reported #1438: `ACCEPT_CASE_INSENSITIVE_PROPERTIES` is not respected for creator properties
+   (2.8.5)
 
 David Bakin (david-bakin@github)
   * Reported #1013: `@JsonUnwrapped` is not treated as assuming `@JsonProperty("")`

release-notes/VERSION

@@ -12,6 +12,8 @@ Project: jackson-databind
   with more than one argument
 #1432: Off by 1 bug in PropertyValueBuffer
  (reported by Kevin D)
+#1438: `ACCEPT_CASE_INSENSITIVE_PROPERTIES` is not respected for creator properties
+ (reported by Jayson M)
 #1439: NPE when using with filter id, serializing `java.util.Map` types
 #1441: Failure with custom Enum key deserializer, polymorphic types
  (reported by Nathanial O)

src/main/java/com/fasterxml/jackson/databind/deser/impl/PropertyBasedCreator.java

@@ -8,6 +8,7 @@
 
 import com.fasterxml.jackson.databind.DeserializationContext;
 import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.MapperFeature;
 import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
 import com.fasterxml.jackson.databind.deser.ValueInstantiator;
 
@@ -21,38 +22,47 @@
  */
 public final class PropertyBasedCreator
 {
+    /**
+     * Number of properties: usually same as size of {@link #_propertyLookup},
+     * but not necessarily, when we have unnamed injectable properties.
+     */
+    protected final int _propertyCount;
+
+    /**
+     * Helper object that knows how to actually construct the instance by
+     * invoking creator method with buffered arguments.
+     */
     protected final ValueInstantiator _valueInstantiator;
-    
+
     /**
      * Map that contains property objects for either constructor or factory
      * method (whichever one is null: one property for each
      * parameter for that one), keyed by logical property name
      */
     protected final HashMap<String, SettableBeanProperty> _propertyLookup;
 
-    /**
-     * Number of properties: usually same as size of {@link #_propertyLookup},
-     * but not necessarily, when we have unnamed injectable properties.
-     */
-    protected final int _propertyCount;
-
     /**
      * Array that contains properties that expect value to inject, if any;
      * null if no injectable values are expected.
      */
     protected final SettableBeanProperty[] _allProperties;
-    
+
     /*
     /**********************************************************
     /* Construction, initialization
     /**********************************************************
      */
-    
+
     protected PropertyBasedCreator(ValueInstantiator valueInstantiator,
-            SettableBeanProperty[] creatorProps)
+            SettableBeanProperty[] creatorProps,
+            boolean caseInsensitive)
     {
         _valueInstantiator = valueInstantiator;
-        _propertyLookup = new HashMap<String, SettableBeanProperty>();
+        if (caseInsensitive) {
+            _propertyLookup = new CaseInsensitiveMap();
+        } else {
+            _propertyLookup = new HashMap<String, SettableBeanProperty>();
+        }
         final int len = creatorProps.length;
         _propertyCount = len;
         _allProperties = new SettableBeanProperty[len];
@@ -79,24 +89,17 @@ public static PropertyBasedCreator construct(DeserializationContext ctxt,
                 prop = prop.withValueDeserializer(ctxt.findContextualValueDeserializer(prop.getType(), prop));
             }
             creatorProps[i] = prop;
-        }        
-        return new PropertyBasedCreator(valueInstantiator, creatorProps);
+        }
+        return new PropertyBasedCreator(valueInstantiator, creatorProps,
+                ctxt.isEnabled(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES));
     }
 
-    // 05-May-2015, tatu: Does not seem to be used, commented out in 2.6
-    /*
-    public void assignDeserializer(SettableBeanProperty prop, JsonDeserializer<Object> deser) {
-        prop = prop.withValueDeserializer(deser);
-        _properties.put(prop.getName(), prop);
-    }
-    */
-
     /*
     /**********************************************************
     /* Accessors
     /**********************************************************
      */
-    
+
     public Collection<SettableBeanProperty> properties() {
         return _propertyLookup.values();
     }
@@ -113,7 +116,7 @@ public SettableBeanProperty findCreatorProperty(int propertyIndex) {
         }
         return null;
     }
-    
+
     /*
     /**********************************************************
     /* Building process
@@ -146,4 +149,33 @@ public Object build(DeserializationContext ctxt, PropertyValueBuffer buffer) thr
         }
         return bean;
     }
+
+    /*
+    /**********************************************************
+    /* Helper classes
+    /**********************************************************
+     */
+
+    /**
+     * Simple override of standard {@link java.util.HashMap} to support
+     * case-insensitive access to creator properties.
+     *
+     * @since 2.8.5
+     */
+    static class CaseInsensitiveMap extends HashMap<String, SettableBeanProperty>
+    {
+        private static final long serialVersionUID = 1L;
+
+        @Override
+        public SettableBeanProperty get(Object key0) {
+            String key = (String) key0;
+            return super.get(key.toLowerCase());
+        }
+
+        @Override
+        public SettableBeanProperty put(String key, SettableBeanProperty value) {
+            key = key.toLowerCase();
+            return super.put(key, value);
+        }
+    }
 }