Moved client creation from main to own thread.

src/main/java/connect/src/ClientThread.java

@@ -0,0 +1,29 @@
+package connect.src;
+
+public class ClientThread extends Thread {
+    private static final String className = "ClientThread";
+
+    public void run() {
+        // Get connection data from ui
+        // Connect to server
+        // Send data depending on information received from ui
+        // Handle reply of server, process data and display on ui
+        // Close connection to server before ui is getting closed
+
+        printMessage("Call testConnection.");
+        testConnection();
+        //sconn(fd=4, family=<AddressFamily.AF_INET: 2>, type=<SocketKind.SOCK_STREAM: 1>, laddr=addr(ip='127.0.0.1', port=5000), raddr=addr(ip='127.0.0.1', port=33828), status='ESTABLISHED', pid=26828)
+    }
+
+    private void testConnection() {
+        Client client = new TLSClient(new TLSClientInformation("cacerts", "qwerty".toCharArray()));
+        client.createConnection();
+        client.sendData(null);
+        client.receiveData();
+        client.closeConnection();
+    }
+
+    private static void printMessage(String message) {
+        System.out.println(className + ": " + message);
+    }
+}