[standalone@localhost:9990 /] /subsystem=batch-jberet/jdbc-job-repository=zzz:add(data-source=x)
{
    "outcome" => "failed",
    "failure-description" => {
        "WFLYCTL0080: Failed services" => {"org.wildfly.batch.job.repository.zzz" => "org.jboss.msc.service.StartException in service org.wildfly.batch.job.repository.zzz: WFLYBATCH000011: Failed to create JDBC job repository.
    Caused by: java.lang.NullPointerException"},
        "WFLYCTL0412: Required services that are not installed:" => ["org.wildfly.batch.job.repository.zzz"],
        "WFLYCTL0180: Services with missing/unavailable dependencies" => undefined
    },
    "rolled-back" => true
}

16:29:39,435 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 58) MSC000001: Failed to start service org.wildfly.batch.job.repository.zzz: org.jboss.msc.service.StartException in service org.wildfly.batch.job.repository.zzz: WFLYBATCH000011: Failed to create JDBC job repository.
	at org.wildfly.extension.batch.jberet.job.repository.JdbcJobRepositoryService.lambda$startJobRepository$0(JdbcJobRepositoryService.java:59)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
	at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.NullPointerException
	at org.jberet.repository.JdbcRepository.close(JdbcRepository.java:1009)
	at org.jberet.repository.JdbcRepository.createTables(JdbcRepository.java:295)
	at org.jberet.repository.JdbcRepository.<init>(JdbcRepository.java:205)
	at org.jberet.repository.JdbcRepository.<init>(JdbcRepository.java:167)
	at org.wildfly.extension.batch.jberet.job.repository.JdbcJobRepositoryService.lambda$startJobRepository$0(JdbcJobRepositoryService.java:56)
	... 4 more

(...)
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Cannot open database "dballo03" requested by the login. The login failed. ClientConnectionId:2ec18f2d-84a4-4a76-998d-72bee6eedbc0
(...)