org.postgresql.util.PSQLException: This connection has been closed.
        at org.postgresql.jdbc2.AbstractJdbc2Connection.checkClosed(AbstractJdbc2Connection.java:714)
        at org.postgresql.jdbc3.AbstractJdbc3Connection.createStatement(AbstractJdbc3Connection.java:230)
        at org.postgresql.jdbc2.AbstractJdbc2Connection.createStatement(AbstractJdbc2Connection.java:191)
        at fr.eip.aura.udp.db.notifier.NotifierMessage.run(NotifierMessage.java:17)