Error from Glassfish's server.log: nested exception is: javax.transaction. SystemException: org.omg.CORBA.INTERNAL: JTS5022: Unexpected exception [com.sun.jts.CosTransactions.LogException: Log exception at point 14: LOG-003: Read failure] from log Reason: Due to corrupted transactions/server log files Solution: Remove log files (normally <glassfish installation>/domains/domain/log) Restart glassfish
Thank very much, very useful