Using both ejb-ref and resource-ref tags in JBoss EAP 7

Issue

While setting an ejb-ref and resource-tag at the same time, the following issue occurs:

Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[121,6]
Message: Unexpected element 'resource-ref' encountered
        at org.jboss.metadata.parser.util.MetaDataElementParser.unexpectedElement(MetaDataElementParser.java:115)
        at org.jboss.metadata.parser.ee.EJBReferenceMetaDataParser.parse(EJBReferenceMetaDataParser.java:90)
        at org.jboss.metadata.parser.ee.EnvironmentRefsGroupMetaDataParser.parseRemote(EnvironmentRefsGroupMetaDataParser.java:108)
        at org.jboss.metadata.parser.ee.EnvironmentRefsGroupMetaDataParser.parse(EnvironmentRefsGroupMetaDataParser.java:81)
        at org.jboss.metadata.parser.jbossweb.JBossWebMetaDataParser.parse(JBossWebMetaDataParser.java:106)
        at org.wildfly.extension.undertow.deployment.JBossWebParsingDeploymentProcessor.deploy(JBossWebParsingDeploymentProcessor.java:74)