Type Exception Report
Message Servlet execution threw an exception
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: Servlet execution threw an exception org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Root Cause
java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory org.apache.http.impl.client.CloseableHttpClient.<init>(CloseableHttpClient.java:58) org.apache.http.impl.client.AbstractHttpClient.<init>(AbstractHttpClient.java:287) org.apache.http.impl.client.DefaultHttpClient.<init>(DefaultHttpClient.java:147) com.apptivo.email.tracking.servlet.EmailTrackingService.enqueueEvent(EmailTrackingService.java:348) com.apptivo.email.tracking.servlet.EmailLinkRedirectServlet.doPost(EmailLinkRedirectServlet.java:59) com.apptivo.email.tracking.servlet.EmailLinkRedirectServlet.doGet(EmailLinkRedirectServlet.java:36) javax.servlet.http.HttpServlet.service(HttpServlet.java:634) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
Note The full stack trace of the root cause is available in the server logs.