Removed on-liner method used in only one place

Author: emacarron

src/main/java/org/apache/ibatis/executor/resultset/DefaultResultSetHandler.java

@@ -454,7 +454,7 @@ private Object getPropertyMappingValue(ResultSet rs, MetaObject metaResultObject
   }
 
   private List<UnMappedColumAutoMapping> createAutomaticMappings(ResultSetWrapper rsw, ResultMap resultMap, MetaObject metaObject, String columnPrefix) throws SQLException {
-    final String mapKey = getMapKey(resultMap, columnPrefix);
+    final String mapKey = resultMap.getId() + ":" + columnPrefix;
     List<UnMappedColumAutoMapping> autoMapping = autoMappingsCache.get(mapKey);
     if (autoMapping == null) {
       autoMapping = new ArrayList<UnMappedColumAutoMapping>();
@@ -1073,8 +1073,4 @@ private Object instantiateCollectionPropertyIfAppropriate(ResultMapping resultMa
     return null;
   }  
 
-  private String getMapKey(ResultMap resultMap, String columnPrefix) {
-    return resultMap.getId() + ":" + columnPrefix;
-  }
-  
 }