EAS服务器CPU持续高消耗，导致系统整体卡慢

收集对应进程的javacore日志分析发现大量线程卡在com.kingdee.bos.metadata.query元数据解析进程上，堆栈如下：

at com.kingdee.bos.metadata.AbstractMDValueDele.<init>(AbstractMDValueDele.java:44)

at com.kingdee.bos.metadata.query.PropertyRefDele.<init>(PropertyRefDele.java:24)

at com.kingdee.bos.metadata.query.PropertyRefDele.getInstance(PropertyRefDele.java:41)

at com.kingdee.bos.metadata.query.PropertyRefCollectionDele.createDelegate(PropertyRefCollectionDele.java:24)

at com.kingdee.bos.dao.AbstractObjectCollectionDele.handleDelegate(AbstractObjectCollectionDele.java:174)

at com.kingdee.bos.dao.AbstractObjectCollectionDele.getObject(AbstractObjectCollectionDele.java:133)

at com.kingdee.bos.metadata.query.token.CollectionFormulaParser.parser(CollectionFormulaParser.java:84)

at com.kingdee.bos.metadata.query.token.CollectionFormulaParser.<init>(CollectionFormulaParser.java:49)

at com.kingdee.bos.metadata.query.util.QueryDeleUtil.getUnitString(QueryDeleUtil.java:710)

at com.kingdee.bos.metadata.query.util.SelectBuilder.buildSelect(SelectBuilder.java:147)

at com.kingdee.bos.metadata.query.util.SelectBuilder.getSql(SelectBuilder.java:44)

at com.kingdee.bos.metadata.query.u