StringIndexOutOfBoundsException upon boot in EAP 6

Issue

I get this error upon startup:

Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: JBAS014676: Failed to parse configuration
    at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:141) 
    at org.jboss.as.host.controller.HostControllerConfigurationPersister.load(HostControllerConfigurationPersister.java:163) 
    at org.jboss.as.host.controller.DomainModelControllerService.boot(DomainModelControllerService.java:418) 
    at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:253) 
    at java.lang.Thread.run(Thread.java:744) 
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 0
    at java.lang.String.charAt(String.java:658) 
    at org.jboss.as.controller.PathElement.<init>(PathElement.java:103) 
    at org.jboss.as.controller.PathAddress.pathAddress(PathAddress.java:97) 
    at org.jboss.as.controller.operations.common.Util.getWriteAttributeOperation(Util.java:117) 
    at org.jboss.as.host.controller.parsing.HostXml.addLocalHost(HostXml.java:757) 
    at org.jboss.as.host.controller.parsing.HostXml.readHostElement_1_1(HostXml.java:363) 
    at org.jboss.as.host.controller.parsing.HostXml.readElement(HostXml.java:131) 
    at org.jboss.as.host.controller.parsing.HostXml.readElement(HostXml.java:106) 
    at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:110) 
    at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:69) 
    at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:133) 
    ... 4 more