final release

Praktikum/VINF_MaerklinControl/src/gui/MainApp.java

@@ -377,6 +377,20 @@ public class MainApp extends Application {
 					});
 					e.printStackTrace();
 				}
+				finally {
+					try {
+						byte[] datagram = {Properties.SEPERATOR, (byte) 0x00, (byte) 0x00, (byte) Properties.SESSION_ABORT, (byte) 0x00, (byte) 0x00};
+						out.write(datagram);
+						client.close();
+						connectionEstablished = false;
+						running = false;
+						settingsController.updateSettingsStatus();
+						
+					} catch (Exception e) {
+						setStatus("Error at: establishConnection (shutting down connection)");
+						e.printStackTrace();
+					}
+				}
 			}
 		}
 	}