Program: 3574
Project: 3574
Buggy source:
@Override public Dialog onCreateDialog(Bundle savedInstanceState){
  AlertDialog.Builder builder=new AlertDialog.Builder(getActivity());
  final Activity callingActivity=getActivity();
  LayoutInflater inflater=callingActivity.getLayoutInflater();
  final View view=inflater.inflate(R.layout.fragment_pwgen,null);
  Typeface monoTypeface=Typeface.createFromAsset(callingActivity.getAssets(),"String_Node_Str");
  builder.setView(view);
  SharedPreferences prefs=getActivity().getApplicationContext().getSharedPreferences("String_Node_Str",Context.MODE_PRIVATE);
  CheckBox checkBox=(CheckBox)view.findViewById(R.id.numerals);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.symbols);
  checkBox.setChecked(prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.uppercase);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.ambiguous);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.pronounceable);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",true));
  TextView textView=(TextView)view.findViewById(R.id.lengthNumber);
  textView.setText(Integer.toString(prefs.getInt("String_Node_Str",20)));
  ((EditText)view.findViewById(R.id.passwordText)).setTypeface(monoTypeface);
  builder.setPositiveButton(getResources().getString(R.string.dialog_ok),new DialogInterface.OnClickListener(){
    @Override public void onClick(    DialogInterface dialog,    int which){
      EditText edit=(EditText)callingActivity.findViewById(R.id.crypto_password_edit);
      EditText generate=(EditText)view.findViewById(R.id.passwordText);
      edit.append(generate.getText());
    }
  }
);
  builder.setNegativeButton(getResources().getString(R.string.dialog_cancel),new DialogInterface.OnClickListener(){
    @Override public void onClick(    DialogInterface dialog,    int which){
    }
  }
);
  builder.setNeutralButton(getResources().getString(R.string.pwgen_generate),null);
  final AlertDialog ad=builder.setTitle("String_Node_Str").create();
  ad.setOnShowListener(new DialogInterface.OnShowListener(){
    @Override public void onShow(    DialogInterface dialog){
      setPreferences();
      EditText editText=(EditText)view.findViewById(R.id.passwordText);
      editText.setText(pwgen.generate(getActivity().getApplicationContext()).get(0));
      Button b=ad.getButton(AlertDialog.BUTTON_NEUTRAL);
      b.setOnClickListener(new View.OnClickListener(){
        @Override public void onClick(        View v){
          setPreferences();
          EditText editText=(EditText)view.findViewById(R.id.passwordText);
          editText.setText(pwgen.generate(callingActivity.getApplicationContext()).get(0));
        }
      }
);
    }
  }
);
  return ad;
}

Fixed version (ground truth):
@Override public Dialog onCreateDialog(Bundle savedInstanceState){
  AlertDialog.Builder builder=new AlertDialog.Builder(getActivity());
  final Activity callingActivity=getActivity();
  LayoutInflater inflater=callingActivity.getLayoutInflater();
  final View view=inflater.inflate(R.layout.fragment_pwgen,null);
  Typeface monoTypeface=Typeface.createFromAsset(callingActivity.getAssets(),"String_Node_Str");
  builder.setView(view);
  SharedPreferences prefs=getActivity().getApplicationContext().getSharedPreferences("String_Node_Str",Context.MODE_PRIVATE);
  CheckBox checkBox=(CheckBox)view.findViewById(R.id.numerals);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.symbols);
  checkBox.setChecked(prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.uppercase);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.ambiguous);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",false));
  checkBox=(CheckBox)view.findViewById(R.id.pronounceable);
  checkBox.setChecked(!prefs.getBoolean("String_Node_Str",true));
  TextView textView=(TextView)view.findViewById(R.id.lengthNumber);
  textView.setText(Integer.toString(prefs.getInt("String_Node_Str",20)));
  ((TextView)view.findViewById(R.id.passwordText)).setTypeface(monoTypeface);
  builder.setPositiveButton(getResources().getString(R.string.dialog_ok),new DialogInterface.OnClickListener(){
    @Override public void onClick(    DialogInterface dialog,    int which){
      EditText edit=(EditText)callingActivity.findViewById(R.id.crypto_password_edit);
      TextView generate=(TextView)view.findViewById(R.id.passwordText);
      edit.append(generate.getText());
    }
  }
);
  builder.setNegativeButton(getResources().getString(R.string.dialog_cancel),new DialogInterface.OnClickListener(){
    @Override public void onClick(    DialogInterface dialog,    int which){
    }
  }
);
  builder.setNeutralButton(getResources().getString(R.string.pwgen_generate),null);
  final AlertDialog ad=builder.setTitle("String_Node_Str").create();
  ad.setOnShowListener(new DialogInterface.OnShowListener(){
    @Override public void onShow(    DialogInterface dialog){
      setPreferences();
      TextView textView=(TextView)view.findViewById(R.id.passwordText);
      textView.setText(pwgen.generate(getActivity().getApplicationContext()).get(0));
      Button b=ad.getButton(AlertDialog.BUTTON_NEUTRAL);
      b.setOnClickListener(new View.OnClickListener(){
        @Override public void onClick(        View v){
          setPreferences();
          TextView textView=(TextView)view.findViewById(R.id.passwordText);
          textView.setText(pwgen.generate(callingActivity.getApplicationContext()).get(0));
        }
      }
);
    }
  }
);
  return ad;
}