}
cbuf.writeByte(1);
byte[] me = new byte[len];
cbuf.readBytes(me);
cbuf.readByte();
System.err.println("reader: " + cbuf.readerIndex());
System.err.println("writer: " + cbuf.writerIndex());
System.err.println("capacity: " + cbuf.capacity());
// see https://github.com/netty/netty/issues/1976