Program: 163840
Project: 163840
Buggy source:
private void registerAccountAsync(){
  if (messageHandler != null && messageHandler.serviceStarted)   return;
 else   if (messageHandler == null)   messageHandler=new MessageHandler(setupActivity,this);
  Bundle result=new Bundle();
  String username=((EditText)getActivity().findViewById(R.id.account_username)).getText().toString().trim();
  String password=((EditText)getActivity().findViewById(R.id.cipher_passphrase)).getText().toString().trim();
  String passwordRepeat=((EditText)getActivity().findViewById(R.id.cipher_passphrase_repeat)).getText().toString().trim();
  if (StringUtils.isEmpty(username)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_EMPTY_ACCOUNT_ID);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    return;
  }
  if (StringUtils.isEmpty(password)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_SHORT_PASSWORD);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase)).setText("String_Node_Str");
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase_repeat)).setText("String_Node_Str");
    return;
  }
  if (StringUtils.isEmpty(passwordRepeat) || !password.equals(passwordRepeat)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_PASSWORDS_DO_NOT_MATCH);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase)).setText("String_Node_Str");
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase_repeat)).setText("String_Node_Str");
    return;
  }
  username=DavAccountHelper.correctUsername(getActivity(),username);
  Intent importService=new Intent(getActivity(),RegisterAccountService.class);
  importService.putExtra(RegisterAccountService.KEY_MESSENGER,new Messenger(messageHandler));
  importService.putExtra(RegisterAccountService.KEY_ACCOUNT_ID,username);
  importService.putExtra(RegisterAccountService.KEY_MASTER_PASSPHRASE,password);
  getActivity().startService(importService);
  messageHandler.serviceStarted=true;
  setupActivity.setNavigationDisabled(true);
  getActivity().setProgressBarIndeterminateVisibility(true);
  getActivity().setProgressBarVisibility(true);
}

Fixed version (ground truth):
private void registerAccountAsync(){
  if (messageHandler != null && messageHandler.serviceStarted)   return;
 else   if (messageHandler == null)   messageHandler=new MessageHandler(setupActivity,this);
  Bundle result=new Bundle();
  String username=((EditText)getActivity().findViewById(R.id.account_username)).getText().toString().trim();
  String password=((EditText)getActivity().findViewById(R.id.cipher_passphrase)).getText().toString().trim();
  String passwordRepeat=((EditText)getActivity().findViewById(R.id.cipher_passphrase_repeat)).getText().toString().trim();
  if (StringUtils.isEmpty(username)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_EMPTY_ACCOUNT_ID);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    return;
  }
  if (username.contains("String_Node_Str")) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_SPACES_IN_USERNAME);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    return;
  }
  if (StringUtils.isEmpty(password)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_SHORT_PASSWORD);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase)).setText("String_Node_Str");
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase_repeat)).setText("String_Node_Str");
    return;
  }
  if (StringUtils.isEmpty(passwordRepeat) || !password.equals(passwordRepeat)) {
    result.putInt(ErrorToaster.KEY_STATUS_CODE,ErrorToaster.CODE_PASSWORDS_DO_NOT_MATCH);
    ErrorToaster.handleDisplayToastBundledError(getActivity(),result);
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase)).setText("String_Node_Str");
    ((TextView)getActivity().findViewById(R.id.cipher_passphrase_repeat)).setText("String_Node_Str");
    return;
  }
  username=DavAccountHelper.correctUsername(getActivity(),username);
  Intent importService=new Intent(getActivity(),RegisterAccountService.class);
  importService.putExtra(RegisterAccountService.KEY_MESSENGER,new Messenger(messageHandler));
  importService.putExtra(RegisterAccountService.KEY_ACCOUNT_ID,username);
  importService.putExtra(RegisterAccountService.KEY_MASTER_PASSPHRASE,password);
  getActivity().startService(importService);
  messageHandler.serviceStarted=true;
  setupActivity.setNavigationDisabled(true);
  getActivity().setProgressBarIndeterminateVisibility(true);
  getActivity().setProgressBarVisibility(true);
}