Fix #735

Author: cowtowncoder

release-notes/VERSION

@@ -4,11 +4,15 @@ Project: jackson-databind
 === Releases ===
 ------------------------------------------------------------------------
 
-2.4.6 (not yet released)
+2.4.5.1 (26-Mar-2015)
 
-#706: Add support for @JsonUnwrapper via JSON Schema module
+Special one-off "micro patch" for:
+
+#706: Add support for `@JsonUnwrapped` via JSON Schema module
 #707: Error in getting string representation of an ObjectNode with a float number value
  (reported by @navidqar)
+#735: @JsonDeserialize on Map with contentUsing custom deserializer overwrites default behavior
+ (reported by blackfyre512@github) (regression due to #604)
 
 2.4.5 (13-Jan-2015)
 

src/main/java/com/fasterxml/jackson/databind/deser/std/MapDeserializer.java

@@ -297,7 +297,13 @@ public JsonDeserializer<Object> getContentDeserializer() {
      */
     @Override
     public boolean isCachable() {
-        return (_valueTypeDeserializer == null) && (_ignorableProperties == null);
+        /* As per [databind#735], existence of value or key deserializer (only passed
+         * if annotated to use non-standard one) should also prevent caching.
+         */
+        return (_valueDeserializer == null)
+                && (_keyDeserializer == null)
+                && (_valueTypeDeserializer == null)
+                && (_ignorableProperties == null);
     }
 
     @Override

src/test/java/com/fasterxml/jackson/databind/deser/TestCustomDeserializers.java

@@ -10,6 +10,7 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.*;
+import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
@@ -228,9 +229,36 @@ public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanPro
             }
             return this;
         }
-        
+    }
+
+    // For [databind#735]
+    public static class TestMapBean735 {
+
+        @JsonDeserialize(contentUsing = CustomDeserializer735.class)
+        public Map<String, Integer> map1;
+
+        public Map<String, Integer> map2;
+    }
+
+    public static class TestListBean735 {
+
+        @JsonDeserialize(contentUsing = CustomDeserializer735.class)
+        public List<Integer> list1;
+
+        public List<Integer> list2;
     }
 
+    public static class CustomDeserializer735 extends StdDeserializer<Integer> {
+        public CustomDeserializer735() {
+            super(Integer.class);
+        }
+
+        @Override
+        public Integer deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+            return 100 * p.getValueAsInt();
+        }
+    }
+
     /*
     /**********************************************************
     /* Unit tests
@@ -332,4 +360,21 @@ public void testContextReadValue() throws Exception
         assertNotNull(w.value.inner);
         assertEquals(-13, w.value.inner.x);
     }
+
+    // [databind#735]: erroneous application of custom deserializer
+    public void testCustomMapValueDeser735() throws Exception {
+        String json = "{\"map1\":{\"a\":1},\"map2\":{\"a\":1}}";
+        TestMapBean735 bean = MAPPER.readValue(json, TestMapBean735.class);
+
+        assertEquals(100, bean.map1.get("a").intValue());
+        assertEquals(1, bean.map2.get("a").intValue());
+    }
+
+    public void testCustomListValueDeser735() throws Exception {
+        String json = "{\"list1\":[1],\"list2\":[1]}";
+        TestListBean735 bean = MAPPER.readValue(json, TestListBean735.class);
+
+        assertEquals(100, bean.list1.get(0).intValue());
+        assertEquals(1, bean.list2.get(0).intValue());
+    }
 }