### Question:
Bytes { public static void hexDump(OutputStream os, byte[] bytes, int columns) throws IOException { Dumper.hexDump(new ByteArrayInputStream(bytes, 0, bytes.length), os, columns, bytes.length); }  static byte[] toByteArray(int... uints); static int toInt(byte[] pb, boolean bigEndian); static int normalize(int i, int bitCount); static void normalize(int iarr[], int bitCount); static byte[] toByteArray(int i, int size, boolean isBigEndian); static int toInt(byte b0, byte b1, byte b2, byte b3, boolean bigEndian); static byte[] toByteArray(int i, boolean bigEndian); static byte[] toByteArray(short i, boolean bigEndian); static int[] toIntArray(byte[] ba, int amount, boolean bigEndian); static int[] toIntArray(byte[] ba, final int amount, final int bytePerInteger,
      boolean bigEndian); static int[] toReducedBitIntArray(
      byte[] ba,
      final int amount,
      int bytePerInteger,
      int bitAmount,
      boolean bigEndian); static short[] toShortArray(byte[] ba, int amount, boolean bigEndian); static byte[] toByteArray(short[] sa, int amount, boolean bigEndian); static byte[] toByteArray(int[] ia, int amount, int bytePerInteger, boolean bigEndian); static String toHexWithZeros(byte b); static String toHex(byte b); static String toHex(byte[] bytes); static String toHexWithZeros(byte[] bytes); static void hexDump(OutputStream os, byte[] bytes, int columns); static void hexDump(byte[] bytes, int columns); static final byte[] EMPTY_BYTE_ARRAY; }### Answer:
@Test @Ignore(value = "Not a test") public void dump() throws IOException { Bytes.hexDump(new byte[]{0x01}, 20); }