Program: 109131
Project: 109131
Buggy source:
private void setupSimplePreferencesScreen(){
  addPreferencesFromResource(MyUtils.isUnderHoneycomb() ? R.xml.preferences_for_low : R.xml.preferences);
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  Preference email_us_Preference=findPreference("String_Node_Str");
  Preference donate_Preference=findPreference("String_Node_Str");
  Preference about_Preference=findPreference("String_Node_Str");
  Preference select_google_account_Preference=findPreference("String_Node_Str");
  final Preference remove_manage_Preference=findPreference("String_Node_Str");
  final CheckBoxPreference fast_mode_Preference=(CheckBoxPreference)findPreference("String_Node_Str");
  fast_mode_Preference.setOnPreferenceChangeListener(new OnPreferenceChangeListener(){
    @Override public boolean onPreferenceChange(    Preference preference,    Object newValue){
      if (newValue.toString().equals("String_Node_Str")) {
        MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
        locker.activeManage();
      }
 else {
        MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
        locker.removeManage();
        remove_manage_Preference.setEnabled(false);
      }
      return true;
    }
  }
);
  remove_manage_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
      locker.removeManage();
      remove_manage_Preference.setEnabled(false);
      fast_mode_Preference.setChecked(false);
      return false;
    }
  }
);
  email_us_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      Intent intent=new Intent(Intent.ACTION_SEND);
      intent.setType("String_Node_Str");
      intent.putExtra(Intent.EXTRA_EMAIL,new String[]{"String_Node_Str"});
      startActivity(Intent.createChooser(intent,"String_Node_Str"));
      return false;
    }
  }
);
  donate_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      Uri uri=Uri.parse("String_Node_Str");
      startActivity(new Intent(Intent.ACTION_VIEW,uri));
      return false;
    }
  }
);
  about_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      startActivity(new Intent(SettingActivity.this,PlaneFighterActivity.class));
      return false;
    }
  }
);
  select_google_account_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      chooseAccount();
      return false;
    }
  }
);
}

Fixed version (ground truth):
private void setupSimplePreferencesScreen(){
  addPreferencesFromResource(MyUtils.isUnderHoneycomb() ? R.xml.preferences_for_low : R.xml.preferences);
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  bindPreferenceSummaryToValue(findPreference("String_Node_Str"));
  Preference email_us_Preference=findPreference("String_Node_Str");
  Preference donate_Preference=findPreference("String_Node_Str");
  Preference about_Preference=findPreference("String_Node_Str");
  Preference select_google_account_Preference=findPreference("String_Node_Str");
  final Preference remove_manage_Preference=findPreference("String_Node_Str");
  final CheckBoxPreference fast_mode_Preference=(CheckBoxPreference)findPreference("String_Node_Str");
  fast_mode_Preference.setOnPreferenceChangeListener(new OnPreferenceChangeListener(){
    @Override public boolean onPreferenceChange(    Preference preference,    Object newValue){
      if (newValue.toString().equals("String_Node_Str")) {
        MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
        locker.activeManage();
      }
 else {
        MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
        locker.removeManage();
        remove_manage_Preference.setEnabled(false);
      }
      return true;
    }
  }
);
  remove_manage_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      MyScreenLocker locker=new MyScreenLocker(SettingActivity.this);
      locker.removeManage();
      remove_manage_Preference.setEnabled(false);
      fast_mode_Preference.setChecked(false);
      return false;
    }
  }
);
  email_us_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      Intent intent=new Intent(Intent.ACTION_SEND);
      intent.setType("String_Node_Str");
      intent.putExtra(Intent.EXTRA_EMAIL,new String[]{"String_Node_Str"});
      startActivity(Intent.createChooser(intent,"String_Node_Str"));
      return false;
    }
  }
);
  donate_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      Uri uri=Uri.parse("String_Node_Str");
      startActivity(new Intent(Intent.ACTION_VIEW,uri));
      return false;
    }
  }
);
  about_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      startActivity(new Intent(SettingActivity.this,PlaneFighterActivity.class));
      return false;
    }
  }
);
  select_google_account_Preference.setOnPreferenceClickListener(new OnPreferenceClickListener(){
    @Override public boolean onPreferenceClick(    Preference preference){
      return false;
    }
  }
);
}