Ola, estou tendo dificuldades em interpretar e resolver esses erros que irei apresentar, gostaria, se possível, de dicas de como poderia estar resolvendo este erro. Obrigado
08/03/2012 10:58:26 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE:Servlet.service()for servlet [ServletAtualizar] in context with path [/CondominioAp] threw exception
java.lang.ClassCastException: java.util.ArrayList cannot be cast to br.com.condominio.pojo.Condominios08/03/2012 11:01:08 org.apache.catalina.session.StandardSession writeObject
AVISO: Cannot serialize session attribute funcoes for session 4E4F839E10ECCDB44B57B049E1790203
java.io.NotSerializableException: br.com.condominio.pojo.Funcao
08/03/2012 14:52:12 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE:Servlet.service()for servlet [ServletAtualizar] in context with path [/CondominioAp] threw exception
java.lang.NumberFormatException: For input string: “undefined”
/*
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*/
package br.com.condominio.pojo;import java.io.Serializable;
/**
*
@author acsalamancaf */ public class Funcao implements Serializable { private int codigo; private String descricao;public int getCodigo() { return codigo; }public void setCodigo(int codigo) { this.codigo = codigo; }public String getDescricao() { return descricao; }public void setDescricao(String descricao) { this.descricao = descricao; }}