refined exception handling

examples/src/OpenDis7Examples/ExampleSimulationProgram.java

@@ -281,9 +281,9 @@ public class ExampleSimulationProgram
             }
         }   // end of while loop
       } 
-      catch (Exception ex) // handle any exception that your code might choose to provoke!
+      catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
       {
-        Logger.getLogger(ExampleSimulationProgram.class.getName()).log(Level.SEVERE, null, ex);
+        Logger.getLogger(ExampleSimulationProgram.class.getName()).log(Level.SEVERE, null, iex);
       }
     }
 }