@NonNull public static synchronized RomInformation[] getBuiltinRoms(Context context) { if (mBuiltinRoms == null) { String[] ids = new String[] {"primary", "dual", "multi-slot-1", "multi-slot-2", "multi-slot-3"}; mBuiltinRoms = new RomInformation[ids.length]; for (int i = 0; i < ids.length; i++) { RomInformation rom = new RomInformation(); rom.setId(ids[i]); rom.setDefaultName(getDefaultName(context, rom)); mBuiltinRoms[i] = rom; } } return mBuiltinRoms; }