--- old/src/java.corba/share/classes/com/sun/corba/se/impl/transport/SocketOrChannelConnectionImpl.java	Fri Jan 29 00:42:36 2016
+++ new/src/java.corba/share/classes/com/sun/corba/se/impl/transport/SocketOrChannelConnectionImpl.java	Fri Jan 29 00:42:36 2016
@@ -367,7 +367,10 @@
                 }
             }
             // REVISIT - make sure reader thread is killed.
-            orb.getTransportManager().getSelector(0).unregisterForEvent(this);
+            Selector selector = orb.getTransportManager().getSelector(0);
+            if (selector != null) {
+                selector.unregisterForEvent(this);
+            }
             // Notify anyone waiting.
             purgeCalls(wrapper.connectionAbort(ex), true, false);
             // REVISIT
@@ -801,7 +804,9 @@
             }
             try {
                 Selector selector = orb.getTransportManager().getSelector(0);
-                selector.unregisterForEvent(this);
+                if (selector != null) {
+                    selector.unregisterForEvent(this);
+                }
                 if (socketChannel != null) {
                     socketChannel.close();
                 }
@@ -824,7 +829,9 @@
                dprint(".closeConnectionResources->: " + this);
            }
            Selector selector = orb.getTransportManager().getSelector(0);
-           selector.unregisterForEvent(this);
+           if (selector != null) {
+               selector.unregisterForEvent(this);
+           }
            try {
              if (socketChannel != null)
               socketChannel.close() ;