More exception checks and crash hints

If no scriptengine is specified then don't try to load any.

OpenSim/ApplicationPlugins/RemoteController/RemoteAdminPlugin.cs

@@ -56,7 +56,7 @@ namespace OpenSim.ApplicationPlugins.LoadRegions
         {
             try
             {
-                if (openSim.ConfigSource.Configs["RemoteAdmin"].GetBoolean("enabled", false))
+                if (openSim.ConfigSource.Configs["RemoteAdmin"] != null && openSim.ConfigSource.Configs["RemoteAdmin"].GetBoolean("enabled", false))
                 {
                     m_log.Info("[RADMIN]: Remote Admin Plugin Enabled");
                     requiredPassword = openSim.ConfigSource.Configs["RemoteAdmin"].GetString("access_password", String.Empty);

OpenSim/Framework/Data.MySQL/MySQLDataStore.cs

@@ -421,8 +421,8 @@ namespace OpenSim.Framework.Data.MySQL
         public void StoreLandObject(Land parcel, LLUUID regionUUID)
         {
             // Does the new locking fix it?
-            m_log.Info("[DATASTORE]: Tedds temp fix: Waiting 3 seconds for stuff to catch up. (Someone please fix! :))");
+            m_log.Info("[DATASTORE]: Tedds temp fix: Waiting 3 seconds to avoid others writing to table while we hold a dataset of it. (Someone please fix! :))");
-            System.Threading.Thread.Sleep(2500 + rnd.Next(300, 900));
+            System.Threading.Thread.Sleep(2500 + rnd.Next(0, 1000));
             
             lock (m_dataSet)
             {

OpenSim/Framework/Servers/BaseHttpServer.cs

@@ -559,6 +559,7 @@ namespace OpenSim.Framework.Servers
             catch (Exception e)
             {
                 m_log.Warn("[HTTPD]: Error - " + e.Message);
+                m_log.Warn("Tip: Do you have permission to listen on port " + m_port + "?");
             }
         }
 

OpenSim/Framework/Statistics/SimExtraStatsReporter.cs

@@ -49,10 +49,14 @@ namespace OpenSim.Framework.Statistics
         }
         
         public void AddTexture(AssetBase image)
+        {
+            // Tedd: I added null check to avoid exception. Don't know if texturesInCache should ++ anyway?
+            if (image.Data != null)
             {
                 texturesInCache++;
                 textureCacheMemoryUsage += image.Data.Length;
             }
+        }        
 
         /// <summary>
         /// Report back collected statistical information.

OpenSim/Region/Application/OpenSimMain.cs

@@ -181,7 +181,7 @@ namespace OpenSim
                 config.Set("storage_prim_inventories", true);
                 config.Set("startup_console_commands_file", String.Empty);
                 config.Set("shutdown_console_commands_file", String.Empty);
-                config.Set("script_engine", "OpenSim.Region.ScriptEngine.DotNetEngine.dll");
+                config.Set("script_engine", "");
                 config.Set("asset_database", "sqlite");
             }
 
@@ -264,7 +264,7 @@ namespace OpenSim
                 m_startupCommandsFile = startupConfig.GetString("startup_console_commands_file", String.Empty);
                 m_shutdownCommandsFile = startupConfig.GetString("shutdown_console_commands_file", String.Empty);
 
-                m_scriptEngine = startupConfig.GetString("script_engine", "OpenSim.Region.ScriptEngine.DotNetEngine.dll");
+                m_scriptEngine = startupConfig.GetString("script_engine", "");
 
                 m_assetStorage = startupConfig.GetString("asset_database", "sqlite");
 
@@ -449,6 +449,13 @@ namespace OpenSim
             m_moduleLoader.PickupModules(scene, ".");
             //m_moduleLoader.PickupModules(scene, "ScriptEngines");
             //m_moduleLoader.LoadRegionModules(Path.Combine("ScriptEngines", m_scriptEngine), scene);
+
+            if (string.IsNullOrEmpty(m_scriptEngine))
+            {
+                m_log.Info("[MODULES]: No script engien module specified");
+            }
+            else
+            {
                 m_log.Info("[MODULES]: Loading scripting engine modules");
                 foreach (string module in m_scriptEngine.Split(','))
                 {
@@ -463,6 +470,7 @@ namespace OpenSim
                         m_log.Error("[MODULES]: Failed to load script engine: " + ex.ToString());
                     }
                 }
+            }
 
             m_moduleLoader.InitialiseSharedModules(scene);
             scene.SetModuleInterfaces();

OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs

@@ -106,6 +106,14 @@ namespace OpenSim.Region.Physics.Manager
 
         private void AddPlugin(string FileName)
         {
+            // TODO / NOTE
+            // The assembly named 'OpenSim.Region.Physics.BasicPhysicsPlugin' was loaded from 
+            // 'file:///C:/OpenSim/trunk2/bin/Physics/OpenSim.Region.Physics.BasicPhysicsPlugin.dll'
+            // using the LoadFrom context. The use of this context can result in unexpected behavior
+            // for serialization, casting and dependency resolution. In almost all cases, it is recommended 
+            // that the LoadFrom context be avoided. This can be done by installing assemblies in the 
+            // Global Assembly Cache or in the ApplicationBase directory and using Assembly.
+            // Load when explicitly loading assemblies.
             Assembly pluginAssembly = Assembly.LoadFrom(FileName);
 
             foreach (Type pluginType in pluginAssembly.GetTypes())