After shutdown application hangs...

Still listening on assigned ports
tcp        0      0 0.0.0.0:8003            0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:8903            0.0.0.0:*               LISTEN     


Full thread dump:

"PollServiceWatcherThread:8003"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.Thread.SleepInternal (int) <0x00051>
  at System.Threading.Thread.Sleep (int) <0x00016>
  at OpenSim.Framework.Servers.HttpServer.PollServiceRequestManager.CheckRetries () <0x00041>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"PollServiceWorkerThread 0:8003"
"PollServiceWorkerThread 1:8903"  at <unknown> <0xffffffff>
  at System.Threading.Monitor.ObjWait (bool,int,object) <0x00095>
  at System.Threading.Monitor.Wait (object,int,bool) <0x0002c>
  at System.Threading.Monitor.Wait (object,int) <0x00013>
  at OpenSim.Framework.BlockingQueue`1<T_REF>.Dequeue (int) <0x000ed>
  at OpenSim.Framework.Servers.HttpServer.PollServiceRequestManager.PoolWorkerJob () <0x000c3>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"PollServiceWorkerThread 0:8903"
"HttpServer Internal Zombie Timeout Checker"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.Thread.SleepInternal (int) <0x00051>
  at System.Threading.Thread.Sleep (int) <0x00016>
  at HttpServer.ContextTimeoutManager.ThreadRunProcess (object) <0x00028>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x000d0>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart (object) <0x0004c>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr) <0x000d6>

"PollServiceWorkerThread 1:8003"
"PollServiceWatcherThread:8903"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.Thread.SleepInternal (int) <0x00051>
  at System.Threading.Thread.Sleep (int) <0x00016>
  at OpenSim.Framework.Servers.HttpServer.PollServiceRequestManager.CheckRetries () <0x00041>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"STP:PoolService:0"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.WaitHandle.WaitAny_internal (System.Threading.WaitHandle[],int) <0x00057>
  at System.Threading.WaitHandle.WaitMultiple (System.Threading.WaitHandle[],int,bool,bool) <0x0010b>
  at System.Threading.WaitHandle.WaitAny (System.Threading.WaitHandle[],int,bool) <0x000d3>
  at Amib.Threading.Internal.STPEventWaitHandle.WaitAny (System.Threading.WaitHandle[],int,bool) <0x00023>
  at Amib.Threading.Internal.WorkItemsQueue.DequeueWorkItem (int,System.Threading.WaitHandle) <0x00213>
  at Amib.Threading.SmartThreadPool.Dequeue () <0x0003b>
  at Amib.Threading.SmartThreadPool.ProcessQueuedItems () <0x002d7>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"Timer-Scheduler"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.WaitHandle.WaitOne_internal (intptr,int) <0x00057>
  at System.Threading.WaitHandle.WaitOneNative (System.Runtime.InteropServices.SafeHandle,uint,bool,bool) <0x00058>
  at System.Threading.WaitHandle.InternalWaitOne (System.Runtime.InteropServices.SafeHandle,long,bool,bool) <0x0003f>
  at System.Threading.WaitHandle.WaitOne (long,bool) <0x0002b>
  at System.Threading.WaitHandle.WaitOne (int,bool) <0x00032>
  at System.Threading.WaitHandle.WaitOne (int) <0x0001b>
  at System.Threading.Timer/Scheduler.SchedulerThread () <0x00890>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"HttpServer Internal Zombie Timeout Checker"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.Thread.SleepInternal (int) <0x00051>
  at System.Threading.Thread.Sleep (int) <0x00016>
  at HttpServer.ContextTimeoutManager.ThreadRunProcess (object) <0x00028>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x000d0>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart (object) <0x0004c>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr) <0x000d6>

"STP:PoolService:0"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Threading.WaitHandle.WaitAny_internal (System.Threading.WaitHandle[],int) <0x00057>
  at System.Threading.WaitHandle.WaitMultiple (System.Threading.WaitHandle[],int,bool,bool) <0x0010b>
  at System.Threading.WaitHandle.WaitAny (System.Threading.WaitHandle[],int,bool) <0x000d3>
  at Amib.Threading.Internal.STPEventWaitHandle.WaitAny (System.Threading.WaitHandle[],int,bool) <0x00023>
  at Amib.Threading.Internal.WorkItemsQueue.DequeueWorkItem (int,System.Threading.WaitHandle) <0x00213>
  at Amib.Threading.SmartThreadPool.Dequeue () <0x0003b>
  at Amib.Threading.SmartThreadPool.ProcessQueuedItems () <0x002d7>
  at System.Threading.ThreadHelper.ThreadStart_Context (object) <0x00099>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00178>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object) <0x00059>
  at System.Threading.ThreadHelper.ThreadStart () <0x0002e>
  at (wrapper runtime-invoke) object.runtime_invoke_void__this__ (object,intptr,intptr,intptr) <0x000c8>

"Finalizer"
"<unnamed thread>"  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Environment.Exit (int) <0x00051>
  at OpenSim.Server.OpenSimServer.Main (string[]) <0x00906>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_int_object (object,intptr,intptr,intptr) <0x000f5>

**** NOTES ****
SmartThreadPool has Shutdown methods for aborting threads. Maybe we need to add calls to these as we exit the application?