sh-4.2$ bin/artemis data exp --output /opt/amq/data/backup-msg/messages --verbose
Executing org.apache.activemq.artemis.cli.commands.tools.xml.XmlDataExporter data exp --output /opt/amq/data/backup-msg/messages --verbose
Home::/opt/amq, Instance::/home/jboss/broker
java.lang.StringIndexOutOfBoundsException: String index out of range: -2
        at java.lang.String.substring(String.java:1967)
        at org.apache.activemq.artemis.cli.commands.tools.xml.XmlDataExporter.printBindingsAsXML(XmlDataExporter.java:342)
        at org.apache.activemq.artemis.cli.commands.tools.xml.XmlDataExporter.writeXMLData(XmlDataExporter.java:150)2)
        at org.apache.activemq.artemis.cli.commands.tools.xml.XmlDataExporter.process(XmlDataExporter.java:132)143)
        at org.apache.activemq.artemis.cli.Artemis.internalExecute(Artemis.java:153)e(XmlDataExporter.java:99)
        at org.apache.activemq.artemis.cli.Artemis.execute(Artemis.java:128)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.lang.reflect.Method.invoke(Method.java:498)DelegatingMethodAccessorImpl.java:43)
        at org.apache.activemq.artemis.boot.Artemis.main(Artemis.java:50)134)