CLI permits an invalid configuration of logging subsystem in JBoss EAP 6.

Issue

• Issuing the below command generates an invalid domain.xml configuration:

[domain@localhost:9999 subsystem=logging] /profile=default-full-ha-profile/subsystem=logging/periodic-rotating-file-handler=hello_file_handler:add(append=true,autoflush=true,enabled=true,formatter="%d{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n",level=ALL,name=hello_file_handler,named-formatter=PATTERN,suffix=".yyyy-MM-dd",file={relative-to => jboss.server.log.dir,path => "hello.log"})
{
    "outcome" => "success",
    "result" => undefined,
    "server-groups" => undefined
}

which causes the below exception :

[Host Controller] 17:09:37,269 ERROR [org.jboss.as.host.controller] (Controller Boot Thread) JBAS010932: Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: JBAS014676: Failed to parse configuration
.....
.....
[Host Controller] Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1913,21]
[Host Controller] Message: JBAS014789: Unexpected element '{urn:jboss:domain:logging:1.5}formatter' encountered

• The above issue is due to the fact that the formatter element is used twice in CLI command.The problem here is that CLI itself which is permitting a wrong configuration to be installed. The CLI should avoid this kind of errors. The result is a broken configuration, if stopped the domain controller will not start again and the configuration must be fixed manually.