Fixed exception upon shutting down in plain ODE.

09:49:57 - [SHUTDOWN]: Ignoring failure during shutdown - System.NullReferenceException: Object reference not set to an instance of an object.
   at OpenSim.Region.PhysicsModule.ODE.OdeScene.Dispose() in f:\dev\opensim-core\OpenSim\Region\PhysicsModules\Ode\OdeScene.cs:line 4062

1 files changed, 5 insertions, 2 deletions

diff --git a/OpenSim/Region/PhysicsModules/Ode/OdeScene.cs b/OpenSim/Region/PhysicsModules/Ode/OdeScene.cs
index 144d762..adc8d98 100644
--- a/OpenSim/Region/PhysicsModules/Ode/OdeScene.cs
+++ b/OpenSim/Region/PhysicsModules/Ode/OdeScene.cs
@@ -4059,8 +4059,11 @@ namespace OpenSim.Region.PhysicsModule.ODE
         {
             _worldInitialized = false;
 
-            m_rayCastManager.Dispose();
-            m_rayCastManager = null;
+            if (m_rayCastManager != null)
+            {
+                m_rayCastManager.Dispose();
+                m_rayCastManager = null;
+            }
 
             lock (OdeLock)
             {