org.jboss.test.jmx.test.JMXConnectorUnitTestCase ends with 9 errors, because of an unavailable service. It tries to connect with:
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://localhost/jndi/rmi://localhost:1090/jmxconnector");
This service is unavailable, because the "all" instance doesn't deploy jmx-remoting.sar (the "default" instance does).

To fix this, i changed the line 134 in build/build-distr.xml:
dest="${install.default}/deploy/jmx-remoting.sar"/>
to:
dest="${install.all}/deploy/jmx-remoting.sar"/>