=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/schema/Schema.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/schema/Schema.java	2015-02-20 04:18:00 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/schema/Schema.java	2015-03-06 06:57:45 +0000
@@ -42,6 +42,7 @@
 import org.hisp.dhis.common.NameableObject;
 import org.springframework.core.Ordered;
 
+import java.lang.reflect.Method;
 import java.util.List;
 import java.util.Map;
 
@@ -327,6 +328,32 @@
         return getPropertyMap().containsKey( propertyName );
     }
 
+    public Method getterByRole( String role )
+    {
+        for ( Property property : propertyMap.values() )
+        {
+            if ( property.isCollection() && property.isManyToMany() && (property.getOwningRole().equals( role ) || property.getInverseRole().equals( role )) )
+            {
+                return property.getGetterMethod();
+            }
+        }
+
+        return null;
+    }
+
+    public Method setterByRole( String role )
+    {
+        for ( Property property : propertyMap.values() )
+        {
+            if ( property.isCollection() && property.isManyToMany() && (property.getOwningRole().equals( role ) || property.getInverseRole().equals( role )) )
+            {
+                return property.getSetterMethod();
+            }
+        }
+
+        return null;
+    }
+
     @JsonIgnore
     public Map<String, Property> getPropertyMap()
     {

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/schema/AbstractPropertyIntrospectorService.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/schema/AbstractPropertyIntrospectorService.java	2015-03-06 05:37:29 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/schema/AbstractPropertyIntrospectorService.java	2015-03-06 06:57:45 +0000
@@ -221,7 +221,6 @@
 
             if ( property.isCollection() )
             {
-
                 CollectionType collectionType = (CollectionType) type;
                 Collection collection = sessionFactoryBean.getConfiguration().getCollectionMapping( collectionType.getRole() );
                 CollectionPersister collectionPersister = sessionFactoryImplementor.getCollectionPersister( collection.getRole() );