readLine() 引起 XML 无法解析

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报错：
org.xml.sax.SAXParseException: name expected (position:START_TAG rootxmlns:dlna@1:54 in java.io.InputStreamReader@7c28415)

String surl = "http://192.168.2.101:1068/description.xml";
URL url = new URL(surl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
InputStream IS = conn.getInputStream();
InputStreamReader ISR = new InputStreamReader(IS);
BufferedReader BR = new BufferedReader(ISR);
String inputLine;
while ((inputLine = BR.readLine()) != null) {responseData += inputLine;
}
Log.e(Thread.currentThread().getStackTrace()[2] + "", "responseText:\n" + responseData);
DocumentBuilderFactory DBF = DocumentBuilderFactory.newInstance();
DocumentBuilder DB = DBF.newDocumentBuilder();
Document doc = DB.parse(new ByteArrayInputStream(responseData.getBytes()));

Notepad++ 查看原文，视图 - 显示符号 - 显示所有字符，可以看到 <root 后面不是一个空格，而是一个换行符！

我得到的响应一个换行都没有：

<?xml version="1.0" encoding="UTF-8"?><rootxmlns:dlna="urn:schemas-dlna-org:device-1-0"xmlns="urn:schemas-upnp-org:device-1-0"><specVersion> <major>1</major> <minor>0</minor></specVersion><device> <deviceType>urn:schemas-upnp-org:device:MediaRenderer:1</deviceType> <UDN>uuid:87619d57-abd7-4271-b372-e139fb094dde</UDN> <friendlyName>Macast(WIN-NMPIENTL4TM)</friendlyName> <manufacturer>xfangfang</manufacturer> <manufacturerURL>https://github.com/xfangfang</manufacturerURL> <modelDescription>AVTransport Media Renderer</modelDescription> <modelName>Macast</modelName> <modelNumber>0.64</modelNumber> <modelURL>https://xfangfang.github.io/Macast</modelURL> <dlna:X_DLNADOC xmlns:dlna="urn:schemas-dlna-org:device-1-0">DMR-1.50</dlna:X_DLNADOC> <serviceList> <service> <serviceType>urn:schemas-upnp-org:service:AVTransport:1</serviceType> <serviceId>urn:upnp-org:serviceId:AVTransport</serviceId> <controlURL>AVTransport/action</controlURL> <eventSubURL>AVTransport/event</eventSubURL> <SCPDURL>dlna/AVTransport.xml</SCPDURL> </service> <service> <serviceType>urn:schemas-upnp-org:service:RenderingControl:1</serviceType> <serviceId>urn:upnp-org:serviceId:RenderingControl</serviceId> <controlURL>RenderingControl/action</controlURL> <eventSubURL>RenderingControl/event</eventSubURL> <SCPDURL>dlna/RenderingControl.xml</SCPDURL> </service> <service> <serviceType>urn:schemas-upnp-org:service:ConnectionManager:1</serviceType> <serviceId>urn:upnp-org:serviceId:ConnectionManager</serviceId> <controlURL>ConnectionManager/action</controlURL> <eventSubURL>ConnectionManager/event</eventSubURL> <SCPDURL>dlna/ConnectionManager.xml</SCPDURL> </service> </serviceList></device></root>

联系软件作者拒绝修改，这怎么办呢？

正当我想用 responseData.replace("<rootxmlns:", "<root xmlns:") 的时候，突然想到或许 readLine() 是用换行符分割的，分割后换行符丢失了，我补上换行符不就可以了！