@ManagedProperty(value="#{user}")
private List<VistaProcesosEntity> procesos;
private LoginBean loginBean;
Above should be:
@ManagedProperty(value="#{user}")
private LoginBean loginBean;
private List<VistaProcesosEntity> procesos;
The annotation @ManagedProperty
references the following object (so in the first case procesos
). This is causing your error.