HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Component ID table:j_id5 has already been found in the view. See below for details. +id: null type: javax.faces.component.UIViewRoot@b04214 +id: j_id0 type: +id: j_id1 type: +id: j_id2 type: javax.faces.component.html.HtmlForm@1c267d1 +id: j_id3 type: javax.faces.component.html.HtmlCommandLink@2e06bd +id: j_id4 type: list +id: table type: javax.faces.component.html.HtmlDataTable@1bc79fa +id: j_id5 type: javax.faces.component.UIColumn@ec34fb +id: j_id5 type: javax.faces.component.html.HtmlOutputText@18a7b6c +id: j_id7 type: javax.faces.component.html.HtmlOutputText@ad2388 +id: j_id6 type: javax.faces.webapp.FacesServlet.service(FacesServlet.java:256) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause java.lang.IllegalStateException: Component ID table:j_id5 has already been found in the view. See below for details. +id: null type: javax.faces.component.UIViewRoot@b04214 +id: j_id0 type: +id: j_id1 type: +id: j_id2 type: javax.faces.component.html.HtmlForm@1c267d1 +id: j_id3 type: javax.faces.component.html.HtmlCommandLink@2e06bd +id: j_id4 type: list +id: table type: javax.faces.component.html.HtmlDataTable@1bc79fa +id: j_id5 type: javax.faces.component.UIColumn@ec34fb +id: j_id5 type: javax.faces.component.html.HtmlOutputText@18a7b6c +id: j_id7 type: javax.faces.component.html.HtmlOutputText@ad2388 +id: j_id6 type: com.sun.faces.application.StateManagerImpl.checkIdUniqueness(StateManagerImpl.java:334) com.sun.faces.application.StateManagerImpl.checkIdUniqueness(StateManagerImpl.java:321) com.sun.faces.application.StateManagerImpl.checkIdUniqueness(StateManagerImpl.java:321) com.sun.faces.application.StateManagerImpl.saveSerializedView(StateManagerImpl.java:199) com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:601) com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:134) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:248) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.17 logs. Apache Tomcat/5.5.17