Program: 13022
Project: 13022
Buggy source:
private boolean onStartDiscovery(){
  String label=labelTextField.getText().trim();
  if (autoLabelCheckBox.isSelected()) {
    label=createAutoLabel();
    labelTextField.setText(label);
  }
 else {
    if (!isValidLabel(label))     return false;
  }
  GenericXmlApplicationContext ctx=new GenericXmlApplicationContext();
  ctx.load("String_Node_Str");
  ctx.load("String_Node_Str");
  ctx.refresh();
  Map<String,String> props=new HashMap<>();
  props.put("String_Node_Str",projectDir.getAbsolutePath());
  VersionManagerFactory versionManagerFactory=ctx.getBean("String_Node_Str",VersionManagerFactory.class);
  VersionManager versionManager=versionManagerFactory.createVersionManager("String_Node_Str",props);
  String version=versionManager.createVersion();
  props.put("String_Node_Str",version);
  networkDiscovererFactory=ctx.getBean("String_Node_Str",NetworkDiscovererFactory.class);
  ConnectionDetailsManagerFactory connectionManagerFacotry=ctx.getBean("String_Node_Str",ConnectionDetailsManagerFactory.class);
  ConnectionDetailsManager connectionDetails=connectionManagerFacotry.createConnectionDetailsManager("String_Node_Str",props);
  LinkedHashMap<String,ConnectionDetails> connectionList=null;
  if (connectionDetails != null) {
    connectionList=(LinkedHashMap<String,ConnectionDetails>)connectionDetails.getConnections();
  }
  props.put("String_Node_Str",version);
  NetworkDiscoverer nodeDiscovererImpl=this.networkDiscovererFactory.createNetworkDiscoverer("String_Node_Str",props);
  int depth=(Integer)depthComboBox.getSelectedItem();
  NodeDiscoveryListener nodeListener=new NodeDiscoveryListener(){
    @Override public void nodeDiscovered(    NodeDiscoveryResult discoveryResult){
      discoveredDevices++;
      loggerConsole.setText(discoveryResult.getNodeId() + "String_Node_Str" + "String_Node_Str"+ DISCOVERED_DEVICES+ "String_Node_Str"+ discoveredDevices);
      loggerConsole.repaint();
    }
  }
;
  NetworkDiscoveryListener networkListener=new NetworkDiscoveryListener(){
    @Override public void networkDiscovered(    NetworkDiscoveryResult result){
      loggerConsole.setText("String_Node_Str");
      loggerConsole.repaint();
    }
  }
;
  nodeDiscovererImpl.addNetworkDiscoveryListeners(networkListener);
  nodeDiscovererImpl.startDiscovery(new HashSet<>(connectionList.values()));
  return true;
}

Fixed version (ground truth):
private boolean onStartDiscovery(){
  String label=labelTextField.getText().trim();
  if (autoLabelCheckBox.isSelected()) {
    label=createAutoLabel();
    labelTextField.setText(label);
  }
 else {
    if (!isValidLabel(label))     return false;
  }
  GenericXmlApplicationContext ctx=new GenericXmlApplicationContext();
  ctx.load("String_Node_Str");
  ctx.load("String_Node_Str");
  ctx.refresh();
  Map<String,String> props=new HashMap<>();
  props.put("String_Node_Str",projectDir.getAbsolutePath());
  VersionManagerFactory versionManagerFactory=ctx.getBean("String_Node_Str",VersionManagerFactory.class);
  VersionManager versionManager=versionManagerFactory.createVersionManager("String_Node_Str",props);
  String version=versionManager.createVersion();
  props.put("String_Node_Str",version);
  networkDiscovererFactory=ctx.getBean("String_Node_Str",NetworkDiscovererFactory.class);
  ConnectionDetailsManagerFactory connectionManagerFacotry=ctx.getBean("String_Node_Str",ConnectionDetailsManagerFactory.class);
  ConnectionDetailsManager connectionDetails=connectionManagerFacotry.createConnectionDetailsManager("String_Node_Str",props);
  LinkedHashMap<String,ConnectionDetails> connectionList=null;
  if (connectionDetails != null) {
    connectionList=(LinkedHashMap<String,ConnectionDetails>)connectionDetails.getConnections();
  }
  props.put("String_Node_Str",version);
  NetworkDiscoverer nodeDiscovererImpl=this.networkDiscovererFactory.createNetworkDiscoverer("String_Node_Str",props);
  int depth=(Integer)depthComboBox.getSelectedItem();
  NodeDiscoveryListener nodeListener=new NodeDiscoveryListener(){
    @Override public void nodeDiscovered(    NodeDiscoveryResult discoveryResult){
      discoveredDevices++;
      loggerConsole.setText(discoveryResult.getNodeId() + "String_Node_Str" + "String_Node_Str"+ DISCOVERED_DEVICES+ "String_Node_Str"+ discoveredDevices);
      loggerConsole.repaint();
    }
  }
;
  NetworkDiscoveryListener networkListener=new NetworkDiscoveryListener(){
    @Override public void networkDiscovered(    NetworkDiscoveryResult result){
      loggerConsole.setText("String_Node_Str");
      loggerConsole.repaint();
    }
  }
;
  nodeDiscovererImpl.addNetworkDiscoveryListeners(networkListener);
  nodeDiscovererImpl.startDiscovery();
  return true;
}