问ConscryptEngine数据读取问题:无法解析TLS数据包头

EN

private ByteBuffer doUnwrap() throws IOException {
        if (mPeerNetData.position() == 0) {
            // The network input buffer is empty; read data from the channel before doing the unwrap
            final int count = mSocketChannel.read(mPeerNetData);
            Log.d(TAG, "bytesRead : " + count);
            if (count == -1) {
                handleEndOfStream(mSocketChannel, mSslEngine);
                return null;
            }
        }

        Log.d(TAG, "isReadPending :" + isReadPending);
        if (!isReadPending) {
            mPeerNetData.flip();
        }

        final SSLEngineResult result;
        try {
            result = mSslEngine.unwrap(mPeerNetData, mPeerAppData);
        } catch (SSLException e) {
            Log.d(TAG, "Exception while calling SSLEngine.unwrap()" + e);
            shutdown();
            return null;
        }
        mPeerNetData.compact();
        Log.d(TAG, "Result of SSLEngine.unwrap(): {}" + result.getStatus());


        final SSLEngineResult.Status status = result.getStatus();
        switch (status) {
            case OK:
                if (mPeerNetData.position() != 0) {
                    isReadPending = true;
                    mPeerAppData = ensureRemaining(mPeerAppData, mSslEngine.getSession().getApplicationBufferSize());
                    doUnwrap();
                }
                break;

            case CLOSED:
                closeConnection(mSocketChannel, mSslEngine);
                break;

            case BUFFER_UNDERFLOW:
                // The network input buffer might not have enough space, re-allocate if necessary
                // (NOTE: packet buffer size as reported by the SSL session might change dynamically)
                mPeerNetData = ensureRemaining(mPeerNetData, mSslEngine.getSession().getPacketBufferSize());

                // Read data from the channel, retry unwrap if not end-of-stream
                final int count = mSocketChannel.read(mPeerNetData);
                if (count == -1) {
                    handleEndOfStream(mSocketChannel, mSslEngine);
                    return null;
                }
                doUnwrap();
                break;

            case BUFFER_OVERFLOW:
                // The application input buffer does not have enough space, re-allocate and retry unwrap
                // (NOTE: application buffer size as reported by the SSL session might change dynamically)
                mPeerAppData = ensureRemaining(mPeerAppData, mSslEngine.getSession().getApplicationBufferSize());
                doUnwrap();
                break;

            default:
                throw new IllegalStateException("Invalid SSL status: " + status);
        }

        return mPeerAppData;
    }

javax.net.ssl.SSLException: Unable to parse TLS packet header
at org.conscrypt.ConscryptEngine.unwrap(ConscryptEngine.java:798)
at org.conscrypt.ConscryptEngine.unwrap(ConscryptEngine.java:738)