Connection refused during init of XWiki

[tmortagne]

@emgem

get these error messages:

2023-03-21 02:43:31,118 [XWiki initialization] ERROR c.x.x.s.DBCPConnectionProvider - Could not create a DBCP pool. There is an error in the Hibernate configuration file, please review it.
java.sql.SQLException: Cannot create PoolableConnectionFactory (Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.)

This does not tell much, the answer is generally in the root cause of this error at the very end of the stack trace you have after those lines.