2009-08-17 00:04:20,289 [Robot-20090817000022210-5-2] ERROR org.seasar.robot.S2RobotThread - Crawling Exception at http://aizuyaichi.nuis.jp/index.shtm
org.seasar.robot.RobotSystemException: Failed to access http://aizuyaichi.nuis.jp/index.shtm
   at org.seasar.robot.client.http.CommonsHttpClient.doGet(CommonsHttpClient.java:382)
   at org.seasar.robot.S2RobotThread.run(S2RobotThread.java:148)
   at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.UnknownHostException: aizuyaichi.nuis.jp
   at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
   at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
   at java.net.Socket.connect(Socket.java:519)
   at java.net.Socket.connect(Socket.java:469)
   at java.net.Socket.<init>(Socket.java:366)
   at java.net.Socket.<init>(Socket.java:240)
   at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
   at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
   at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
   at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
   at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
   at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
   at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
   at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
   at org.seasar.robot.client.http.CommonsHttpClient.doGet(CommonsHttpClient.java:283)
   ... 2 more