Folks , I have deployed my customer application in to Jboss 4.0.5 GA server. All the pages working except one page. When i click that page am getting below error. Can you please help me to out this issue ------------------ A general error has occurred please report this to your system administrator. Exception $java.util.ConcurrentModificationException java.util.HashMap$HashIterator.nextEntry(HashMap.java:841) java.util.HashMap$ValueIterator.next(HashMap.java:871) org.hibernate.pretty.Printer.toString(Printer.java:90) org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:97)) org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338) org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:575) org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:662) org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:632) org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:314) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:117) like etc. Thanks Dharma View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148473#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...