code:
URL url = new URL((URL)null,<a servlet url here>,new HttpTimeoutHandler(this.timeout));
URLConnection con = url.openConnection();
con.setUseCaches(false);
sendHeaders(con);
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when session is alive, the code is ok. but when session timeout, these code will cause exception:
java.net.ConnectException: Operation timed out: connect
Please help me! Thank you!