Program: 25010
Project: 25010
Buggy source:
private void processSettings(){
  StringBuffer torrcText=new StringBuffer();
  torrcText.append(TorConstants.TORRC_DEFAULT);
  SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this);
  boolean useBridges=prefs.getBoolean(PREF_BRIDGES_ENABLED,false);
  boolean autoUpdateBridges=prefs.getBoolean(PREF_BRIDGES_UPDATED,false);
  boolean becomeRelay=prefs.getBoolean(PREF_OR,false);
  boolean ReachableAddresses=prefs.getBoolean(PREF_REACHABLE_ADDRESSES,false);
  enableTransparentProxy=prefs.getBoolean(PREF_TRANSPARENT,false);
  if (hasRoot) {
    if (enableTransparentProxy) {
      TorTransProxy.setDNSProxying();
      TorTransProxy.setTransparentProxying(this,TorServiceUtils.getApps(this));
    }
 else {
      TorTransProxy.purgeNatIptables();
    }
  }
  String bridgeList=prefs.getString(PREF_BRIDGES_LIST,"String_Node_Str");
  if (useBridges) {
    if (bridgeList == null || bridgeList.length() == 0) {
      showAlert("String_Node_Str" + "String_Node_Str");
      showSettings();
      return;
    }
    torrcText.append("String_Node_Str");
    torrcText.append('\n');
    torrcText.append("String_Node_Str");
    if (autoUpdateBridges)     torrcText.append("String_Node_Str");
 else     torrcText.append("String_Node_Str");
    torrcText.append('\n');
    String bridgeDelim="String_Node_Str";
    if (bridgeList.indexOf("String_Node_Str") != -1) {
      bridgeDelim="String_Node_Str";
    }
    StringTokenizer st=new StringTokenizer(bridgeList,bridgeDelim);
    while (st.hasMoreTokens()) {
      torrcText.append("String_Node_Str");
      torrcText.append(st.nextToken());
      torrcText.append('\n');
    }
  }
 else {
    torrcText.append("String_Node_Str");
    torrcText.append('\n');
  }
  try {
    if (ReachableAddresses) {
      String ReachableAddressesPorts=prefs.getString(PREF_REACHABLE_ADDRESSES_PORTS,"String_Node_Str");
      torrcText.append("String_Node_Str");
      torrcText.append(ReachableAddressesPorts);
      torrcText.append('\n');
    }
  }
 catch (  Exception e) {
    showAlert("String_Node_Str");
  }
  try {
    if (becomeRelay && (!useBridges) && (!ReachableAddresses)) {
      int ORPort=Integer.parseInt(prefs.getString(PREF_OR_PORT,"String_Node_Str"));
      String nickname=prefs.getString(PREF_OR_NICKNAME,"String_Node_Str");
      torrcText.append("String_Node_Str");
      torrcText.append(ORPort);
      torrcText.append('\n');
      torrcText.append("String_Node_Str");
      torrcText.append(nickname);
      torrcText.append('\n');
      torrcText.append("String_Node_Str");
      torrcText.append('\n');
    }
  }
 catch (  Exception e) {
    showAlert("String_Node_Str");
    showSettings();
    return;
  }
  Utils.saveTextFile(TorServiceConstants.TORRC_INSTALL_PATH,torrcText.toString());
}

Fixed version (ground truth):
private void processSettings(){
  StringBuffer torrcText=new StringBuffer();
  torrcText.append(TorConstants.TORRC_DEFAULT);
  SharedPreferences prefs=PreferenceManager.getDefaultSharedPreferences(this);
  boolean useBridges=prefs.getBoolean(PREF_BRIDGES_ENABLED,false);
  boolean autoUpdateBridges=prefs.getBoolean(PREF_BRIDGES_UPDATED,false);
  boolean becomeRelay=prefs.getBoolean(PREF_OR,false);
  boolean ReachableAddresses=prefs.getBoolean(PREF_REACHABLE_ADDRESSES,false);
  enableTransparentProxy=prefs.getBoolean(PREF_TRANSPARENT,false);
  if (hasRoot) {
    if (enableTransparentProxy) {
      TorTransProxy.setDNSProxying();
      TorTransProxy.setTransparentProxying(this,TorServiceUtils.getApps(this));
    }
 else {
      TorTransProxy.purgeNatIptables();
    }
  }
  String bridgeList=prefs.getString(PREF_BRIDGES_LIST,"String_Node_Str");
  if (useBridges) {
    if (bridgeList == null || bridgeList.length() == 0) {
      showAlert("String_Node_Str","String_Node_Str" + "String_Node_Str");
      showSettings();
      return;
    }
    torrcText.append("String_Node_Str");
    torrcText.append('\n');
    torrcText.append("String_Node_Str");
    if (autoUpdateBridges)     torrcText.append("String_Node_Str");
 else     torrcText.append("String_Node_Str");
    torrcText.append('\n');
    String bridgeDelim="String_Node_Str";
    if (bridgeList.indexOf("String_Node_Str") != -1) {
      bridgeDelim="String_Node_Str";
    }
    StringTokenizer st=new StringTokenizer(bridgeList,bridgeDelim);
    while (st.hasMoreTokens()) {
      torrcText.append("String_Node_Str");
      torrcText.append(st.nextToken());
      torrcText.append('\n');
    }
  }
 else {
    torrcText.append("String_Node_Str");
    torrcText.append('\n');
  }
  try {
    if (ReachableAddresses) {
      String ReachableAddressesPorts=prefs.getString(PREF_REACHABLE_ADDRESSES_PORTS,"String_Node_Str");
      torrcText.append("String_Node_Str");
      torrcText.append(ReachableAddressesPorts);
      torrcText.append('\n');
    }
  }
 catch (  Exception e) {
    showAlert("String_Node_Str","String_Node_Str");
  }
  try {
    if (becomeRelay && (!useBridges) && (!ReachableAddresses)) {
      int ORPort=Integer.parseInt(prefs.getString(PREF_OR_PORT,"String_Node_Str"));
      String nickname=prefs.getString(PREF_OR_NICKNAME,"String_Node_Str");
      torrcText.append("String_Node_Str");
      torrcText.append(ORPort);
      torrcText.append('\n');
      torrcText.append("String_Node_Str");
      torrcText.append(nickname);
      torrcText.append('\n');
      torrcText.append("String_Node_Str");
      torrcText.append('\n');
    }
  }
 catch (  Exception e) {
    showAlert("String_Node_Str","String_Node_Str");
    showSettings();
    return;
  }
  Utils.saveTextFile(TorServiceConstants.TORRC_INSTALL_PATH,torrcText.toString());
}