Recently, we have been getting cpu utilization alarms from Am server spiking above 95%.  I also noticed that when I click on the support tab and server links in the monitors>Icon View>, it gives the error below:

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.lang.NoClassDefFoundError com.adventnet.awolf.chart.ChartInfo.generatePieChart(ChartInfo.java:1220) com.adventnet.awolf.tags.AMWolf.doEndTag(AMWolf.java:116) org.apache.jsp.jsp.TomcatDetails_jsp._jspService(TomcatDetails_jsp.java:3067) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069) org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274) org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455) org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069) org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274) org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455) org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069) org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:274) org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455) org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:320) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) com.adventnet.appmanager.filter.ExtProdIntegFilter.doFilter(ExtProdIntegFilter.java:91) com.adventnet.appmanager.filter.AAMFilter.doFilter(AAMFilter.java:72) com.adventnet.nms.webclient.i18n.EncodingFilter.doFilter(EncodingFilter.java:70) com.adventnet.appmanager.filter.UriCollector.doFilter(UriCollector.java:469) com.adventnet.appmanager.filter.LoadTimeCalculator.doFilter(LoadTimeCalculator.java:41) com.adventnet.appmanager.filter.SessionFilter.doFilter(SessionFilter.java:147) 

Apache Tomcat/5.5.20