You should get the the CommunityEntity object then call getMembers, and then process the object.
String communityUuid = "1dba2e59-05da-4b9a-84e4-2444a6cac251";
Community myComm = new Community(communityUuid);
MemberList listOfMembers = myComm.getMembers();
Then call listOfMembers.iterator(); and process in a for loop (the data element is Member)
The docs are also in the sbtsdk download in docs/javadocs/index.html