dont check utf if in readonly mode

2017-11-27 16:23:44,561: [pool-1-thread-1] ERROR GrouperStartup$1.callLogic(318) - - Error: Problems checking UTF and database feat
ures
edu.internet2.middleware.grouper.exception.GrouperReadonlyException: Grouper is in readonly mode (perhaps due to maintenance), you c
annot perform an operation which changes the data!,
Problem in HibernateSession: HibernateSession (43e3556a): new, readonly, READONLY_NEW, notActiveTransaction, session (4b28899a)
at edu.internet2.middleware.grouper.hibernate.HibernateSession.assertNotGrouperReadonly(HibernateSession.java:522)
at edu.internet2.middleware.grouper.hibernate.HibernateMisc.flush(HibernateMisc.java:40)
at edu.internet2.middleware.grouper.hibernate.BySqlStatic$1.callback(BySqlStatic.java:88)
at edu.internet2.middleware.grouper.hibernate.HibernateSession.callbackHibernateSession(HibernateSession.java:700)
at edu.internet2.middleware.grouper.hibernate.BySqlStatic.executeSql(BySqlStatic.java:80)
at edu.internet2.middleware.grouper.hibernate.BySqlStatic.executeSql(BySqlStatic.java:69)
at edu.internet2.middleware.grouper.ddl.GrouperDdlUtils.deleteUtfDdls(GrouperDdlUtils.java:1876)
at edu.internet2.middleware.grouper.misc.GrouperStartup.verifyUtf8andTransactionsHelper(GrouperStartup.java:418)
at edu.internet2.middleware.grouper.misc.GrouperStartup$1.callLogic(GrouperStartup.java:315)
at edu.internet2.middleware.grouper.misc.GrouperStartup$1.callLogic(GrouperStartup.java:310)
at edu.internet2.middleware.grouper.util.GrouperCallable.callLogicWithSessionIfExists(GrouperCallable.java:169)
at edu.internet2.middleware.grouper.util.GrouperCallable.call(GrouperCallable.java:132)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)