DATAMONGO-638 - MappingContext does not create PersistentEntities for AbstractMaps.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoMappingContext.java

@@ -17,7 +17,7 @@ package org.springframework.data.mongodb.core.mapping;
 
 import java.beans.PropertyDescriptor;
 import java.lang.reflect.Field;
-import java.util.HashMap;
+import java.util.AbstractMap;
 
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
@@ -52,7 +52,7 @@ public class MongoMappingContext extends AbstractMappingContext<BasicMongoPersis
 	 */
 	@Override
 	protected boolean shouldCreatePersistentEntityFor(TypeInformation<?> type) {
-		return !MongoSimpleTypes.HOLDER.isSimpleType(type.getType()) && !type.getType().equals(HashMap.class);
+		return !MongoSimpleTypes.HOLDER.isSimpleType(type.getType()) && !AbstractMap.class.isAssignableFrom(type.getType());
 	}
 
 	/*

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/mapping/MongoMappingContextUnitTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2013 by the original author(s).
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.springframework.data.mongodb.core.mapping;
 
 import static org.hamcrest.CoreMatchers.*;
 import static org.junit.Assert.*;
 
 import java.lang.reflect.Field;
+import java.util.AbstractMap;
 import java.util.Collections;
 import java.util.Map;
 
@@ -80,6 +80,16 @@ public class MongoMappingContextUnitTests {
 		assertThat(ReflectionUtils.getField(field, context), is(notNullValue()));
 	}
 
+	/**
+	 * @see DATAMONGO-638
+	 */
+	@Test
+	public void doesNotCreatePersistentEntityForAbstractMap() {
+
+		MongoMappingContext context = new MongoMappingContext();
+		assertThat(context.getPersistentEntity(AbstractMap.class), is(nullValue()));
+	}
+
 	class ClassWithMultipleIdProperties {
 
 		@Id