SSH整合时候，使用集合出错
问题已经定位到，使用set集合就出错。当我把代码里面的Set<ReplyPO>  replys = new HashSet<ReplyPO>()注释掉之后，正常。貌似hibernate自定义的collection与jdk的冲突？求大神分析下

java.lang.NoSuchMethodError: java.util.Collections.emptyIterator()Ljava/util/Iterator;

	org.hibernate.mapping.Collection.getColumnIterator(Collection.java:370)

	org.hibernate.mapping.Property.getColumnIterator(Property.java:91)

	org.hibernate.mapping.PersistentClass.checkPropertyColumnDuplication(PersistentClass.java:718)

	org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:740)

	org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:493)

	org.hibernate.mapping.RootClass.validate(RootClass.java:271)

	org.hibernate.cfg.Configuration.validate(Configuration.java:1309)

	org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1798)

	org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1877)

private Long			articleNum;

	private String			category;

	private String			title;

	private	int				count;

	private Set<ReplyPO> 	replys = new HashSet<ReplyPO>();

	

	@Id

	@SequenceGenerator(sequenceName="ARTICLE_SEQ", name="article", allocationSize=1)

	@GeneratedValue(strategy=GenerationType.SEQUENCE, generator="article")

	@Column(name="ARTICLE_NUM", nullable=false)

	public Long getArticleNum() {

		return articleNum;

	}

	public void setArticleNum(Long articleNum) {

		this.articleNum = articleNum;

	}

	

	@Column(name="CATEGORY", nullable=false)

	public String getCategory() {

		return category;

	}

	public void setCategory(String category) {

		this.category = category;

	}



	@Column(name="TITLE", nullable=false)

	public String getTitle() {

		return title;

	}

	public void setTitle(String title) {

		this.title = title;

	}

	

	@Column(name="COUNT", nullable=false)

	public int getCount() {

		return count;

	}

	public void setCount(int count) {

		this.count = count;

	}

	

	@OneToMany(mappedBy="articleNum")

	public java.util.Set<ReplyPO> getReplys() {

		return replys;

	}

	public void setReplys(java.util.Set<ReplyPO> replys) {

		this.replys = replys;

	}

------解决方案--------------------
java.util.Set<ReplyPO>都像这样写。。
------解决方案--------------------
看你引用的是哪个set
------解决方案--------------------
配置错了把？
------解决方案--------------------
应该引用util 里面的set
------解决方案--------------------
请参考我的基于spring,security的开源项目
http://blog.csdn.net/shadowsick