Apos adicionar o dateList, o commandLink para remover o autor parou de funcionar.
o erro retornado é :
Message javax.persistence.RollbackException: Error while committing the transaction
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: javax.persistence.RollbackException: Error while committing the transaction
javax.faces.webapp.FacesServlet.service(FacesServlet.java:671)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
javax.faces.el.EvaluationException: javax.persistence.RollbackException: Error while committing the transaction
javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
javax.faces.component.UICommand.broadcast(UICommand.java:315)
javax.faces.component.UIData.broadcast(UIData.java:1108)
javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:658)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)