=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/preheat/PreheatService.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/preheat/PreheatService.java	2016-02-08 08:21:50 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/preheat/PreheatService.java	2016-02-08 08:44:43 +0000
@@ -67,7 +67,7 @@
      * @param objects Objects to scan
      * @return Maps classes to collections of identifiers
      */
-    Map<PreheatIdentifier, Map<Class<? extends IdentifiableObject>, Set<String>>> collectReferences( Collection<Object> objects );
+    Map<PreheatIdentifier, Map<Class<? extends IdentifiableObject>, Set<String>>> collectReferences( Collection<?> objects );
 
     /**
      * Connects id object references on a given object using a given identifier + a preheated Preheat cache.

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/preheat/DefaultPreheatService.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/preheat/DefaultPreheatService.java	2016-02-08 08:21:50 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/preheat/DefaultPreheatService.java	2016-02-08 08:44:43 +0000
@@ -152,7 +152,7 @@
 
     @Override
     @SuppressWarnings( "unchecked" )
-    public Map<PreheatIdentifier, Map<Class<? extends IdentifiableObject>, Set<String>>> collectReferences( Collection<Object> objects )
+    public Map<PreheatIdentifier, Map<Class<? extends IdentifiableObject>, Set<String>>> collectReferences( Collection<?> objects )
     {
         Map<PreheatIdentifier, Map<Class<? extends IdentifiableObject>, Set<String>>> map = new HashMap<>();
 

=== modified file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/objectbundle/DefaultObjectBundleService.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/objectbundle/DefaultObjectBundleService.java	2016-02-08 08:21:50 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/objectbundle/DefaultObjectBundleService.java	2016-02-08 08:44:43 +0000
@@ -35,8 +35,6 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
-import java.util.ArrayList;
-
 /**
  * @author Morten Olav Hansen <mortenoh@gmail.com>
  */
@@ -59,7 +57,7 @@
 
         if ( PreheatMode.REFERENCE == preheatParams.getPreheatMode() )
         {
-            preheatParams.setReferences( preheatService.collectReferences( new ArrayList<>( params.getObjects() ) ) );
+            preheatParams.setReferences( preheatService.collectReferences( params.getObjects() ) );
         }
 
         bundle.setPreheat( preheatService.preheat( preheatParams ) );