type Exception report
message java.net.UnknownHostException: dlib.uni-rostock.de
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: java.net.UnknownHostException: dlib.uni-rostock.de org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:460) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
root cause
java.net.UnknownHostException: dlib.uni-rostock.de java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) java.net.Socket.connect(Socket.java:579) java.net.Socket.connect(Socket.java:528) sun.net.NetworkClient.doConnect(NetworkClient.java:180) sun.net.www.http.HttpClient.openServer(HttpClient.java:432) sun.net.www.http.HttpClient.openServer(HttpClient.java:527) sun.net.www.http.HttpClient.<init>(HttpClient.java:211) sun.net.www.http.HttpClient.New(HttpClient.java:308) sun.net.www.http.HttpClient.New(HttpClient.java:326) sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:997) sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933) sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:851) sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301) java.net.URL.openStream(URL.java:1037) org.apache.jsp.oldref_jsp._jspService(oldref_jsp.java:106) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:727) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.52 (Ubuntu) logs.