### Question:
TCompactTracedProtocol extends TCompactProtocol { public ByteBuffer readBinary() throws TException { int length = readVarint32(); checkStringReadLength(length); if (length == 0) { return ByteBuffer.wrap(EMPTY_BYTES); } if (trans_.getBytesRemainingInBuffer() >= length) { ByteBuffer bb = ByteBuffer.allocate(length); bb.put(trans_.getBuffer(), trans_.getBufferPosition(), length); bb.rewind(); trans_.consumeBuffer(length); return bb; } byte[] buf = new byte[length]; trans_.readAll(buf, 0, length); return ByteBuffer.wrap(buf); } TCompactTracedProtocol(
            TTransport transport,
            long stringLengthLimit,
            long containerLengthLimit,
            ThriftTraceMode traceMode
    ); @Override TMessage readMessageBegin(); @Override void writeMessageBegin(TMessage message); ByteBuffer readBinary(); static final byte MESSAGE_TYPE_CALL_WITH_TRACE_ID; static final byte MESSAGE_TYPE_ONEWAY_WITH_TRACE_ID; static final byte[] EMPTY_BYTES; }### Answer:
@Test(groups = "unit") public void readBinary() throws Exception { TFastFramedTransport transport = new TFastFramedTransport(new TMemoryBuffer(1024)); TCompactTracedProtocol protocol = new TCompactTracedProtocol(transport, 1024, 1024, ThriftTraceMode.DISABLED); protocol.writeBinary(ByteBuffer.wrap("Test1".getBytes(StandardCharsets.UTF_8))); transport.flush(); protocol.writeBinary(ByteBuffer.wrap("Test2".getBytes(StandardCharsets.UTF_8))); transport.flush(); transport.open(); ByteBuffer byteBuffer1 = protocol.readBinary(); ByteBuffer byteBuffer2 = protocol.readBinary(); byte[] bytes1 = new byte[byteBuffer1.remaining()]; byteBuffer1.get(bytes1); byte[] bytes2 = new byte[byteBuffer2.remaining()]; byteBuffer2.get(bytes2); assertEquals(new String(bytes1, StandardCharsets.UTF_8), "Test1", "Second string"); assertEquals(new String(bytes2, StandardCharsets.UTF_8), "Test2"); }