@Override
    public int read() throws IOException {
        return getBuffer().get() & 0xff;
    }
Read a byte at this buffer

@return the read value
@throws java.io.EOFException if EOF is reached.
@see java.io.InputStream#read()
inlong-tubemq/tubemq-core/src/main/java/org/apache/inlong/tubemq/corerpc/netty/ByteBufferInputStream.java