Memory exception exception during recursive programming on a Java map

Question

Although a recursive programming style is not recommended on a Java map, I want to do a little Fibonacci test. I wrote a function that calculates the Fibonacci set for large integers (represented by arrays of bytes).

My code is as follows:

public static byte[] fibonacci(byte[] n) {
    if (isLEThan1(n)) {
        return n;
    }
    else {
        return add(fibonacci(subtract(n, new byte[]{0x01})),fibonacci(subtract(n,new byte[]{0x02})));
    }
}

where boolean isLEThan(byte[])returns trueif the integer represented by the byte array is less than or equal to 1 false, if not.

byte[] add(byte[], byte[])and byte[] subtract(byte[], byte[])implement addition and subtraction for large integers represented by arrays of bytes. They return a new byte array containing the result of the operation.

, , , , SystemException.NO_RESOURCE - , - .

, , 6F00 .

, :

try {
        fibonacci(array);
    } catch (ArithmeticException e) {
        ISOException.throwIt((short) 0x0100);
    } catch (ArrayStoreException e) {
        ISOException.throwIt((short) 0x0200);
    } catch (APDUException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x03,
            (byte) e.getReason()));
    } catch (CryptoException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x04,
            (byte) e.getReason()));
    } catch (ISOException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x05,
            (byte) e.getReason()));
    } catch (PINException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x06,
            (byte) e.getReason()));
    } catch (ServiceException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x07,
            (byte) e.getReason()));
    } catch (SystemException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x08,
            (byte) e.getReason()));
    } catch (TransactionException e) {
        ISOException.throwIt(Util.makeShort((byte) 0x09,
            (byte) e.getReason()));
    } catch (ClassCastException e) {
        ISOException.throwIt((short) 0x0A00);
    } catch (IndexOutOfBoundsException e) {
        ISOException.throwIt((short) 0x0B00);
    } catch (NegativeArraySizeException e) {
        ISOException.throwIt((short) 0x0C00);
    } catch (NullPointerException e) {
        ISOException.throwIt((short) 0x0D00);
    } catch (SecurityException e) {
        ISOException.throwIt((short) 0x0E00);
    }
    }

, - ?

Answer 1

a SystemException. ISO/IEC 7816-4 - . , , (short) (0x6700 | 0x0080 | e.getReason()) ISOException.