public Set<DistributedMember> getOtherNormalMembers() {
    Set<DistributedMember> allMembers = new HashSet<>(getAllNormalMembers());
    allMembers.remove(getDistributedMember());
    return allMembers;
  }
Note: Overriding MethodRule is only way to get {@code Object target}
geode-core/src/distributedTest/java/org/apache/geode/management/ManagementTestRule.java