private Properties getProperties() {
    Properties pr = new Properties();
    pr.put(MCAST_PORT, "0");
    pr.put(LOCATORS, "");
    // pr.put("jmx-manager", "true");
    // pr.put("jmx-manager-start", "true");
    return pr;
  }
Test ReadOnly operations are accesible from RMI Connector with readOnly user
geode-core/src/integrationTest/java/org/apache/geode/management/internal/unsafe/ReadOpFileAccessControllerJUnitTest.java