帮忙看一下java网络编程死锁的情况！

Question

"Thread-14" prio=10 tid=0x00007f09d4024000 nid=0x6021 runnable [0x00007f0a15e68000]
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
- locked <0x000000009a12af98> (a java.io.BufferedInputStream)
at sun.net.www.http.ChunkedInputStream.fastRead(ChunkedInputStream.java:221)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:662)
- locked <0x000000009a12afc0> (a sun.net.www.http.ChunkedInputStream)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2672)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
- locked <0x000000009a12b060> (a java.io.InputStreamReader)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at uestc.dmlab.crawler.main.DownLoadPage.getContentFromUrl(DownLoadPage.java:67)
at uestc.dmlab.crawler.main.UrlDataHanding.dataHanding(UrlDataHanding.java:26)
at uestc.dmlab.crawler.main.UrlDataHanding.run(UrlDataHanding.java:51)
at java.lang.Thread.run(Thread.java:662)
"Thread-13" prio=10 tid=0x00007f09d4022000 nid=0x6020 runnable [0x00007f0a15f69000]
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
- locked <0x000000008a0bc710> (a java.io.BufferedInputStream)
at sun.net.www.http.ChunkedInputStream.fastRead(ChunkedInputStream.java:221)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:662)
- locked <0x000000008a0c8e58> (a sun.net.www.http.ChunkedInputStream)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2672)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
- locked <0x000000008a0c8f28> (a java.io.InputStreamReader)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at uestc.dmlab.crawler.main.DownLoadPage.getContentFromUrl(DownLoadPage.java:67)
at uestc.dmlab.crawler.main.UrlDataHanding.dataHanding(UrlDataHanding.java:26)
at uestc.dmlab.crawler.main.UrlDataHanding.run(UrlDataHanding.java:48)
at java.lang.Thread.run(Thread.java:662)
"Thread-12" prio=10 tid=0x00007f09d4020000 nid=0x601f runnable [0x00007f0a1606a000]
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
- locked <0x0000000090902d98> (a java.io.BufferedInputStream)
at sun.net.www.http.ChunkedInputStream.fastRead(ChunkedInputStream.java:221)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:662)
- locked <0x0000000090902dc0> (a sun.net.www.http.ChunkedInputStream)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2672)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
- locked <0x0000000090902e60> (a java.io.InputStreamReader)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at uestc.dmlab.crawler.main.DownLoadPage.getContentFromUrl(DownLoadPage.java:67)
at uestc.dmlab.crawler.main.UrlDataHanding.dataHanding(UrlDataHanding.java:26)
at uestc.dmlab.crawler.main.UrlDataHanding.run(UrlDataHanding.java:51)
at java.lang.Thread.run(Thread.java:662)
 
这部分的代码
URL path = new URL(gd.url);
                    String content = "";
                    HttpURLConnection connection = (HttpURLConnection) path.openConnection();
                    connection.connect();
                    InputStream urlStream = connection.getInputStream();                    InputStreamReader isr;
                    if (gd.url.contains("suning") || gd.url.contains("amazon")) {
                        isr = new InputStreamReader(urlStream, "UTF-8");
                    } else {
                        isr = new InputStreamReader(urlStream, "GBK");
                    }
                    char[] buf = new char[2048];
                    int n = 0;
                    while ((n = isr.read(buf, 0, 2048)) != -1) {
                        // System.out.println(new String(buf,0,n).toString());
                        content += new String(buf, 0, n);
                    }
 
是什么原因呢

Answer 1

没看出来，何以断定是死锁了？全都停在：
"Thread-13" prio=10 tid=0x00007f09d4022000 nid=0x6020 runnable [0x00007f0a15f69000]
java.lang.Thread.State: RUNNABLE
  at java.net.SocketInputStream.socketRead0(Native Method)
应该是在等待对方的数据而已吧。

Answer 2

locked <0x0000000090902dc0> (a sun.net.www.http.ChunkedInputStream)
有几个locked啊 而且一直动不了