摘要：
Root cause:org.datanucleus.exceptions.NucleusUserException: Object Manager has been closedAre you using Google App Engine for java and JDO?If you ask for a list of something you might have to call the... 阅读全文
posted @ 2010-02-10 11:17 季枫 阅读(519) 评论(0) 推荐(0) 编辑