Program: 174704
Project: 174704
Buggy source:
public static void saveSettings() throws IOException {
  BufferedWriter writer=new BufferedWriter(new FileWriter("String_Node_Str"));
  writer.write(String.format("String_Node_Str",Settings.getShopRandomization().toString()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getXmailerItem().toString()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isFullItemAccess()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isAutomaticHardmode()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireSoftwareComboForKeyFairy()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireIceCapeForLava()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireFlaresForExtinction()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRandomizeForbiddenTreasure()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRandomizeCoinChests()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isReplaceMapsWithWeights()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isCoinChestGraphics()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isAutomaticGrailPoints()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getLaMulanaBaseDir()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getLanguage()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getBossDifficulty().name()));
  writer.newLine();
  for (  String item : DataFromFile.getAllItems()) {
    if (Settings.getInitiallyAccessibleItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else     if (Settings.getNonRandomizedItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else     if (Settings.getSurfaceItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
    writer.newLine();
  }
  for (  String glitchOption : DataFromFile.getAvailableGlitches()) {
    writer.write(String.format("String_Node_Str",glitchOption,Settings.getEnabledGlitches().contains(glitchOption)));
    writer.newLine();
  }
  for (  String dboostOption : Arrays.asList("String_Node_Str","String_Node_Str","String_Node_Str")) {
    writer.write(String.format("String_Node_Str",dboostOption,Settings.getEnabledDamageBoosts().contains(dboostOption)));
    writer.newLine();
  }
  writer.flush();
  writer.close();
}

Fixed version (ground truth):
public static void saveSettings() throws IOException {
  BufferedWriter writer=new BufferedWriter(new FileWriter("String_Node_Str"));
  writer.write(String.format("String_Node_Str",Settings.getShopRandomization().toString()));
  writer.newLine();
  if (Settings.getXmailerItem() != null) {
    writer.write(String.format("String_Node_Str",Settings.getXmailerItem()));
    writer.newLine();
  }
  writer.write(String.format("String_Node_Str",Settings.isFullItemAccess()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isAutomaticHardmode()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireSoftwareComboForKeyFairy()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireIceCapeForLava()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRequireFlaresForExtinction()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRandomizeForbiddenTreasure()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isRandomizeCoinChests()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isReplaceMapsWithWeights()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isCoinChestGraphics()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.isAutomaticGrailPoints()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getLaMulanaBaseDir()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getLanguage()));
  writer.newLine();
  writer.write(String.format("String_Node_Str",Settings.getBossDifficulty().name()));
  writer.newLine();
  for (  String item : DataFromFile.getAllItems()) {
    if (Settings.getInitiallyAccessibleItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else     if (Settings.getNonRandomizedItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else     if (Settings.getSurfaceItems().contains(item)) {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
 else {
      writer.write(String.format("String_Node_Str",item,"String_Node_Str"));
    }
    writer.newLine();
  }
  for (  String glitchOption : DataFromFile.getAvailableGlitches()) {
    writer.write(String.format("String_Node_Str",glitchOption,Settings.getEnabledGlitches().contains(glitchOption)));
    writer.newLine();
  }
  for (  String dboostOption : Arrays.asList("String_Node_Str","String_Node_Str","String_Node_Str")) {
    writer.write(String.format("String_Node_Str",dboostOption,Settings.getEnabledDamageBoosts().contains(dboostOption)));
    writer.newLine();
  }
  writer.flush();
  writer.close();
}