HttpURLConnection getting locked

Posted by Nayn on Stack Overflow See other posts from Stack Overflow or by Nayn
Published on 2010-06-08T16:35:23Z Indexed on 2010/06/08 19:12 UTC
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java

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lock

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httpurlconnection

Hi, I have a thread running under tomcat which creates a HttpUrlConnection and reads it through BufferedInputStream.

After fetching data for some urls, it stalls. I got the jstack of the process which says HttpUrlConnection is locked and BufferedInputStream is also locked.

"http-8080-1" daemon prio=10 tid=0x08683400 nid=0x79c9 runnable [0x8f618000]
   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 <0x956ef8c0> (a java.io.BufferedInputStream)
        at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:687)
        at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1072)
        - locked <0x956ef910> (a sun.net.www.protocol.http.HttpURLConnection)

Could somebody help here. Thanks

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