### Question:
DirectBuffer extends ByteBufferBuffer { public static DirectBuffer allocate() { return allocate(DEFAULT_INITIAL_CAPACITY, MAX_SIZE); } protected  DirectBuffer(DirectBytes bytes, int offset, int initialCapacity, int maxCapacity); static DirectBuffer allocate(); static DirectBuffer allocate(int initialCapacity); static DirectBuffer allocate(int initialCapacity, int maxCapacity); @Override DirectBuffer duplicate();  }### Answer:
@Test public void testByteBufferToDirectBuffer() { ByteBuffer byteBuffer = ByteBuffer.allocate(8); byteBuffer.putLong(10); byteBuffer.flip(); DirectBuffer directBuffer = DirectBuffer.allocate(8); directBuffer.write(byteBuffer.array()); directBuffer.flip(); assertEquals(directBuffer.readLong(), byteBuffer.getLong()); assertTrue(directBuffer.isDirect()); directBuffer.release(); }