Not closing pre-bound Hibernate Session

cin

3.6.2版本，使用online表单开发的编辑表单功能，反复点几次之后页面停止响应，cpu占用率很高。
后台报
19:18:22.188 [http-apr-8080-exec-5] DEBUG o.s.o.h.HibernateTransactionManager - Rolling back Hibernate transaction on Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] collectionQueuedOps=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])]
19:18:22.188 [http-apr-8080-exec-5] DEBUG o.s.o.h.HibernateTransactionManager - Not closing pre-bound Hibernate Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] collectionQueuedOps=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])] after transaction
19:18:22.189 [http-apr-8080-exec-7] DEBUG o.s.o.h.HibernateTransactionManager - Initiating transaction commit
19:18:22.448 [http-apr-8080-exec-7] DEBUG o.s.o.h.HibernateTransactionManager - Committing Hibernate transaction on Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] collectionQueuedOps=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])]
Exception in thread "http-apr-8080-exec-5" 19:18:22.953 [http-apr-8080-exec-5] DEBUG o.s.o.h.s.OpenSessionInViewFilter - Closing Hibernate Session in OpenSessionInViewFilter
19:18:23.192 [http-apr-8080-exec-7] DEBUG o.s.o.h.HibernateTransactionManager - Not closing pre-bound Hibernate Session [SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[] collectionCreations=[] collectionRemovals=[] collectionUpdates=[] collectionQueuedOps=[] unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])] after transaction
19:18:23.193 [http-apr-8080-exec-7] DEBUG o.s.w.b.a.s.HandlerMethodInvoker - Invoking init-binder method: public void org.jeecgframework.core.common.controller.BaseController.initBinder(org.springframework.web.bind.ServletRequestDataBinder)
19:18:24.169 [http-apr-8080-exec-7] DEBUG o.s.o.h.s.OpenSessionInViewFilter - Closing Hibernate Session in OpenSessionInViewFilter
Exception in thread "http-apr-8080-exec-7" Exception in thread "RMI RenewClean-[127.0.0.1:7545,net.sf.ehcache.distribution.ConfigurableRMIClientSocketFactory@7d0]"