private void initGUI() {
this.parameterPanel = new GridPanel(true);
this.instanceNameTextField = new XBayaTextField();
XBayaLabel instanceNameLabel = new XBayaLabel("Experiment name", this.instanceNameTextField);
this.topicTextField = new XBayaTextField();
XBayaLabel topicLabel = new XBayaLabel("Notification topic", this.topicTextField);
this.workflowInterpreterTextField = new XBayaTextField();
XBayaLabel workflowInterpreterLabel = new XBayaLabel("Workflow Interpreter URL",
this.workflowInterpreterTextField);
this.RegistryTextField = new XBayaTextField();
XBayaLabel RegistryLabel = new XBayaLabel("Registry URL", this.RegistryTextField);
this.gfacTextField = new XBayaTextField();
XBayaLabel gfacLabel = new XBayaLabel("GFac URL", this.gfacTextField);
GridPanel infoPanel = new GridPanel();
infoPanel.add(instanceNameLabel);
infoPanel.add(this.instanceNameTextField);
infoPanel.add(topicLabel);