In following CLI command we are using invalid attribute "blocking-timeout-millis", valid attribute is "blocking-timeout-wait-millis" Batch mode: ========== [standalone@localhost:9999 /] batch [standalone@localhost:9999 / #] /subsystem=datasources/data-source=TestDS:add(connection-url="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE",driver-name=h2,jndi-name=java:/jboss/datasources/TestDS,blocking-timeout-millis=1000) [standalone@localhost:9999 / #] run-batch The batch executed successfully [standalone@localhost:9999 /] Standalone command: ================== [standalone@localhost:9999 /] /subsystem=datasources/data-source=TestDS:add(connection-url="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE",driver-name=h2,jndi-name=java:/jboss/datasources/TestDS,blocking-timeout-millis=1000) 'blocking-timeout-millis' is not found among the supported properties: [share-prepared-statements, driver-class, prepared-statements-cache-size, spy, password, max-pool-size, set-tx-query-timeout, jndi-name, url-delimiter, enabled, connectable, blocking-timeout-wait-millis, statistics-enabled, pool-use-strict-min, validate-on-match, transaction-isolation, jta, valid-connection-checker-class-name, allocation-retry-wait-millis, exception-sorter-properties, background-validation-millis, track-statements, use-fast-fail, flush-strategy, stale-connection-checker-class-name, exception-sorter-class-name, background-validation, check-valid-connection-sql, reauth-plugin-class-name, allow-multiple-users, url-selector-strategy-class-name, user-name, use-ccm, reauth-plugin-properties, driver-name, stale-connection-checker-properties, datasource-class, idle-timeout-minutes, query-timeout, use-java-context, valid-connection-checker-properties, min-pool-size, allocation-retry, security-domain, new-connection-sql, connection-url, use-try-lock, pool-prefill]