Biome Array Length Setter

public static void setBiomeArrayLength(int newLen)
    {
        try
        {
            Field bListF = BiomeGenBase.class.getDeclaredField("biomeList");

            bListF.setAccessible(true);

            BiomeGenBase[] lastArray = (BiomeGenBase[]) bListF.get(null);

            BiomeGenBase[] resArray = Arrays.copyOfRange(lastArray, 0, newLen);

            Field modifiersField = Field.class.getDeclaredField("modifiers");

            modifiersField.setAccessible(true);

            int modifiers = modifiersField.getInt(bListF);

            modifiers &= ~Modifier.FINAL;

            modifiersField.setInt(bListF, modifiers);

            FieldAccessor fa = ReflectionFactory.getReflectionFactory().newFieldAccessor(bListF, false);

            fa.set(null, resArray);

        } catch(Exception e)
        {
            e.printStackTrace();
        }
    }