### Question:
FsEntryHBaseCommon { public static String colName(byte[] colSpec) { return Bytes.toString(colSpec, 1, colSpec.length-1); }  static byte typeVal(Object o); static byte[] createColSpec(Object o, String colName); static byte[] createColSpec(byte type, String colName); static String colName(byte[] colSpec); @SuppressWarnings("fallthrough") static Object unmarshall(byte[] colSpec, byte[] colVal); static void populate(Map<byte[], byte[]> input, Map<String,Object> out, Map<String, StreamProxy> streams); static final byte LONG; static final byte STRING; static final byte DATE; static final byte JSON; static final byte BYTE_ARRAY; static final byte BUFFER_STREAM; static final byte FILE_STREAM; }### Answer:
@Test public void testColName() { ByteArrayOutputStream stream = new ByteArrayOutputStream(); stream.write(0); stream.write(65); assertEquals("A", colName(stream.toByteArray())); }