Index: src/main/cpp/telnetappender.cpp
===================================================================
--- src/main/cpp/telnetappender.cpp	(revision 639707)
+++ src/main/cpp/telnetappender.cpp	(working copy)
@@ -116,7 +116,11 @@
                 }
         }
         
-        sh.join();
+        try {
+          sh.join();
+        } catch (Exception& ex) {
+          // do nothing.
+        }
 
         activeConnections = 0;
 }