3 files changed, 21 insertions, 7 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 7d8cbf5..69c1027 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1692,15 +1692,19 @@ namespace OpenSim.Region.Framework.Scenes
 
         private void CheckAtTargets()
         {
-            List<SceneObjectGroup> objs = new List<SceneObjectGroup>();
+            List<SceneObjectGroup> objs = null;
+
             lock (m_groupsWithTargets)
             {
-                foreach (SceneObjectGroup grp in m_groupsWithTargets.Values)
-                    objs.Add(grp);
+                if (m_groupsWithTargets.Count != 0)
+                    objs = new List<SceneObjectGroup>(m_groupsWithTargets.Values);
             }
 
-            foreach (SceneObjectGroup entry in objs)
-                entry.checkAtTargets();
+            if (objs != null)
+            {
+                foreach (SceneObjectGroup entry in objs)
+                    entry.checkAtTargets();
+            }
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index 5b49e3b..5a0b8d1 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -3351,7 +3351,7 @@ Console.WriteLine(" JointCreateFixed");
 
         private void MeshAssetReceived(AssetBase asset)
         {
-            if (asset.Data != null && asset.Data.Length > 0)
+            if (asset != null && asset.Data != null && asset.Data.Length > 0)
             {
                 if (!_pbs.SculptEntry)
                     return;
@@ -3364,6 +3364,12 @@ Console.WriteLine(" JointCreateFixed");
                 m_taintshape = true;
                _parent_scene.AddPhysicsActorTaint(this);
             }
+            else
+            {
+                m_log.WarnFormat(
+                    "[ODE PRIM]: Could not get mesh/sculpt asset {0} for {1} at {2} in {3}",
+                    _pbs.SculptTexture, Name, _position, _parent_scene.Name);
+            }
         }          
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Services/Interfaces/IAssetService.cs b/OpenSim/Services/Interfaces/IAssetService.cs
index 80494f1..3c469c6 100644
--- a/OpenSim/Services/Interfaces/IAssetService.cs
+++ b/OpenSim/Services/Interfaces/IAssetService.cs
@@ -68,7 +68,11 @@ namespace OpenSim.Services.Interfaces
         /// </summary>
         /// <param name="id">The asset id</param>
         /// <param name="sender">Represents the requester.  Passed back via the handler</param>
-        /// <param name="handler">The handler to call back once the asset has been retrieved</param>
+        /// <param name="handler">
+        /// The handler to call back once the asset has been retrieved.  This will be called back with a null AssetBase
+        /// if the asset could not be found for some reason (e.g. if it does not exist, if a remote asset service
+        /// was not contactable, if it is not in the database, etc.).
+        /// </param>
         /// <returns>True if the id was parseable, false otherwise</returns>
         bool Get(string id, Object sender, AssetRetrieved handler);