Program: 35875
Project: 35875
Buggy source:
@Override public void handleLoadPackage(final LoadPackageParam lpparam) throws Throwable {
  if (!lpparam.packageName.equals("String_Node_Str"))   return;
  final Class<?> SettingsClazz=XposedHelpers.findClass("String_Node_Str",lpparam.classLoader);
  XposedHelpers.findAndHookMethod(SettingsClazz,"String_Node_Str",ContextMenu.class,View.class,ContextMenuInfo.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    MethodHookParam param) throws Throwable {
      if (((ContextMenu)param.args[0]).findItem(MENU_ID_MODIFY) != null) {
        ((ContextMenu)param.args[0]).add(Menu.NONE,Menu.FIRST + 9,3,"String_Node_Str");
      }
    }
  }
);
  XposedHelpers.findAndHookMethod(SettingsClazz,"String_Node_Str",MenuItem.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    final MethodHookParam param) throws Throwable {
      MenuItem menuItem=(MenuItem)param.args[0];
      if (menuItem.getItemId() == MENU_ID_SHOWPASSWORD) {
        final Context context=(Context)((PreferenceFragment)param.thisObject).getActivity();
        int selectedListPosition=((AdapterContextMenuInfo)menuItem.getMenuInfo()).position;
        PreferenceFragment wifiPreferenceFragment=((PreferenceFragment)param.thisObject);
        View rawListView=wifiPreferenceFragment.getView().findViewById(android.R.id.list);
        if (!(rawListView instanceof ListView)) {
          throw new RuntimeException("String_Node_Str");
        }
        ListView mList=(ListView)rawListView;
        Preference pref=(Preference)mList.getAdapter().getItem(selectedListPosition);
        final String ssid=pref.getTitle().toString();
        if (DBG)         Log.v(TAG,"String_Node_Str" + ssid);
        new NetworkParser(new NetworkListener(){
          @Override public void onParserDone(          List<Network> networkList){
            for (            Network network : networkList) {
              if (DBG) {
                Log.v(TAG,"String_Node_Str" + network.getSsid());
                Log.v(TAG,"String_Node_Str" + network.getPassword());
              }
              if (network.getSsid().equals(ssid)) {
                Toast.makeText(context,network.getPassword(),Toast.LENGTH_LONG).show();
                break;
              }
            }
          }
        }
).execute();
        param.setResult(true);
      }
    }
  }
);
}

Fixed version (ground truth):
@Override public void handleLoadPackage(final LoadPackageParam lpparam) throws Throwable {
  if (!lpparam.packageName.equals("String_Node_Str"))   return;
  final Class<?> SettingsClazz=XposedHelpers.findClass("String_Node_Str",lpparam.classLoader);
  XposedHelpers.findAndHookMethod(SettingsClazz,"String_Node_Str",ContextMenu.class,View.class,ContextMenuInfo.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    MethodHookParam param) throws Throwable {
      setIds(SettingsClazz);
      if (((ContextMenu)param.args[0]).findItem(MENU_ID_MODIFY) != null) {
        ((ContextMenu)param.args[0]).add(Menu.NONE,Menu.FIRST + 9,3,"String_Node_Str");
      }
    }
  }
);
  XposedHelpers.findAndHookMethod(SettingsClazz,"String_Node_Str",MenuItem.class,new XC_MethodHook(){
    @Override protected void afterHookedMethod(    final MethodHookParam param) throws Throwable {
      MenuItem menuItem=(MenuItem)param.args[0];
      setIds(SettingsClazz);
      if (menuItem.getItemId() == MENU_ID_SHOWPASSWORD) {
        final Context context=(Context)((PreferenceFragment)param.thisObject).getActivity();
        int selectedListPosition=((AdapterContextMenuInfo)menuItem.getMenuInfo()).position;
        PreferenceFragment wifiPreferenceFragment=((PreferenceFragment)param.thisObject);
        View rawListView=wifiPreferenceFragment.getView().findViewById(android.R.id.list);
        if (!(rawListView instanceof ListView)) {
          throw new RuntimeException("String_Node_Str");
        }
        ListView mList=(ListView)rawListView;
        Preference pref=(Preference)mList.getAdapter().getItem(selectedListPosition);
        final String ssid=pref.getTitle().toString();
        if (DBG)         Log.v(TAG,"String_Node_Str" + ssid);
        new NetworkParser(new NetworkListener(){
          @Override public void onParserDone(          List<Network> networkList){
            for (            Network network : networkList) {
              if (DBG) {
                Log.v(TAG,"String_Node_Str" + network.getSsid());
                Log.v(TAG,"String_Node_Str" + network.getPassword());
              }
              if (network.getSsid().equals(ssid)) {
                getDialog(context,ssid,network.getPassword()).show();
                break;
              }
            }
          }
        }
).execute();
        param.setResult(true);
      }
    }
  }
);
}