import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeSet;
import org.jdom2.Element;
import frodo2.algorithms.AgentInterface;
import frodo2.algorithms.StatsReporter;
import frodo2.algorithms.dpop.UTILpropagation;
import frodo2.algorithms.varOrdering.dfs.DFSgeneration;
import frodo2.algorithms.varOrdering.dfs.DFSgeneration.DFSview;
import frodo2.algorithms.varOrdering.dfs.DFSgeneration.MessageDFSoutput;
import frodo2.communication.Message;
import frodo2.communication.MessageType;
import frodo2.communication.MessageWith2Payloads;
import frodo2.communication.MessageWith3Payloads;
import frodo2.communication.Queue;
import frodo2.solutionSpaces.Addable;
import frodo2.solutionSpaces.DCOPProblemInterface;