If using XBean to parse the XML configuration: Some settings require...

<beans ...
  xsi:schemaLocation="
        http://activemq.apache.org/schema/core
        http://activemq.apache.org/schema/core/activemq-core-5.2.0.xsd
  ">

...in case of XML validation. If no validation is necessary, then there is no header. (This path is, of course, appended to xsi:schemaLocation in the case where there are other schemas listed.)

This goes into the XML configuration. logMessageEvents limits the logfile content to the "minimum verbose" amount. Here we turn off connection-event logging.

    <plugins>
      <loggingBrokerPlugin logMessageEvents="true" logConnectionEvents="false" />
    </plugins>

...from inside an XBean file. Some macro pronouns are filled in by the Maven build.

  <broker xmlns="http://activemq.apache.org/schema/core"
        brokerName="${project.artifactId}"
				dataDirectory="${homeDir}/data/${project.artifactId}"
				useJmx="true">

    <plugins>
      <simpleAuthenticationPlugin anonymousAccessAllowed="false">
        <users>
          <authenticationUser username="#adminUsername" password="#adminPassword" groups="admins" />
          <authenticationUser username="#adminROUsername" password="#adminROPassword" groups="adminsRO" />
        </users>
      </simpleAuthenticationPlugin>

      <authorizationPlugin>
        <map>
          <authorizationMap>
            <authorizationEntries>
              <!-- queue or topic name of ">" represents all queues or topics -->
              <authorizationEntry queue=">" read="admins,adminsRO" write="admins" admin="admins,adminsRO" />
              <authorizationEntry topic=">" read="admins,adminsRO" write="admins" admin="admins" />

              <authorizationEntry topic="ActiveMQ.Advisory.>" read="admins,adminsRO" write="admins,adminsRO" admin="admins,adminsRO"/>
            </authorizationEntries>
          </authorizationMap>
        </map>
      </authorizationPlugin>
    </plugins>

    <destinationInterceptors>
      <virtualDestinationInterceptor>
        <virtualDestinations>
          <virtualTopic name="VirtualTopic.CT.CHANGES" prefix="Consumer.*." selectorAware="true"/>
        </virtualDestinations>
      </virtualDestinationInterceptor>
    </destinationInterceptors>

    <plugins>
      <virtualSelectorCacheBrokerPlugin persistFile="selectorcache.data"/>
    </plugins>

    <!--
      The managementContext is used to configure how ActiveMQ is exposed in
      JMX. By default, ActiveMQ uses the MBean server that is started by
      the JVM. For more information, see:
        http://activemq.apache.org/jmx.html
    -->
    <managementContext>
      <managementContext createConnector="true"/>
    </managementContext>

    <!--
      Configure message persistence for the broker. The default persistence
      mechanism is the KahaDB store (identified by the kahaDB tag).
      For more information, see:
        http://activemq.apache.org/persistence.html
    -->
    <persistenceAdapter>
      <jdbcPersistenceAdapter dataDirectory="${activemq.data}" dataSource="#c3p0PostgreSQL" createTablesOnStartup="true" lockKeepAlivePeriod="5000">
        <locker>
          <lease-database-locker lockAcquireSleepInterval="10000"/>
        </locker>
      </jdbcPersistenceAdapter>
    </persistenceAdapter>

    <!--
      The systemUsage controls the maximum amount of space the broker will
      use before slowing down producers. For more information, see:
        http://activemq.apache.org/producer-flow-control.html
    -->
    <systemUsage>
      <systemUsage>
        <memoryUsage>
          <memoryUsage limit="2048 mb"/>
        </memoryUsage>
        <storeUsage>
          <storeUsage limit="75 gb"/>
        </storeUsage>
        <tempUsage>
          <tempUsage limit="1 gb"/>
        </tempUsage>
      </systemUsage>
    </systemUsage>

    <!--
      The transport connectors expose ActiveMQ over a given protocol to
      clients and other brokers. For more information, see:
        http://activemq.apache.org/configuring-transports.html
    -->
    <transportConnectors>
      <transportConnector name="openwire" uri="tcp://0.0.0.0:61616"/>
    </transportConnectors>

    <plugins>
      <loggingBrokerPlugin logMessageEvents="true" logConnectionEvents="false" />
    </plugins>
  </broker>