Type Exception Report
Message ir.lib.ypu.edu.tw
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
java.net.UnknownHostException: ir.lib.ypu.edu.tw java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) java.net.Socket.connect(Socket.java:607) org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:123) org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:123) org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:147) org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:101) org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:381) org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:641) org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:576) org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:554) org.apache.portals.applications.webcontent.proxy.impl.RewritableHttpReverseProxyServiceImpl.invoke(RewritableHttpReverseProxyServiceImpl.java:445) org.apache.portals.applications.webcontent.proxy.impl.DefaultHttpReverseProxyServlet.service(DefaultHttpReverseProxyServlet.java:463) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.