ICE-1593 Handling thread interrupts in Java

- Added Ice.BackgroundIO property to perform all IO in a non-user
  thread. This makes Ice for Java interrupt safe. This is implemented
  by the QueueRequestHanbler.
- EndpointHostResolver now uses an executor instead of a thread.
- Added java/demo/Ice/interrupt and java/test/Ice/interrupt.
- Made several changes that must be ported to C++ & C#.
  - InvocationTimeout exceptions can hang forever.
  - Connection establishment is always asynchronous.
  - RequestHandler.requestTimeout and asyncRequestTimeout have been
    renamed to requestCancel and asyncRequestCancel.

1 files changed, 9 insertions, 5 deletions

diff --git a/java/src/IceInternal/ObjectAdapterFactory.java b/java/src/IceInternal/ObjectAdapterFactory.java
index 308be141f5b..5b9688a70d7 100644
--- a/java/src/IceInternal/ObjectAdapterFactory.java
+++ b/java/src/IceInternal/ObjectAdapterFactory.java
@@ -26,12 +26,7 @@ public final class ObjectAdapterFactory
                 return;
             }
 
-            _instance = null;
-            _communicator = null;
-
             adapters = new java.util.LinkedList<Ice.ObjectAdapterI>(_adapters);
-
-            notifyAll();
         }
 
         //
@@ -42,8 +37,16 @@ public final class ObjectAdapterFactory
         {
             adapter.deactivate();
         }
+
+        synchronized(this)
+        {
+            _instance = null;
+            _communicator = null;
+            notifyAll();
+        }
     }
 
+
     public void
     waitForShutdown()
     {
@@ -61,6 +64,7 @@ public final class ObjectAdapterFactory
                 }
                 catch(InterruptedException ex)
                 {
+                    throw new Ice.OperationInterruptedException();
                 }
             }