diff --git a/pom.xml b/pom.xml
index 447d58a..559cc65 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,11 +18,11 @@
 			<artifactId>jung-api</artifactId>
 			<version>2.0</version>
 		</dependency>
-<!-- 		<dependency>
+ 		<dependency>
 			<groupId>uk.ac.soton.ecs.gp4j</groupId>
 			<artifactId>gp4j</artifactId>
 			<version>1.0-SNAPSHOT</version>
-		</dependency> -->
+		</dependency>
 		<dependency>
 			<groupId>net.sf.jung</groupId>
 			<artifactId>jung-graph-impl</artifactId>
diff --git a/src/main/java/boundedMaxSum/MinimisingFunction.java b/src/main/java/boundedMaxSum/MinimisingFunction.java
index cc659ac..bfadc45 100644
--- a/src/main/java/boundedMaxSum/MinimisingFunction.java
+++ b/src/main/java/boundedMaxSum/MinimisingFunction.java
@@ -21,19 +21,21 @@
 public class MinimisingFunction extends LinkBoundedInternalFunction implements
 		BBDiscreteInternalFunction {
 
-	private BBDiscreteInternalFunction wrappedFunction;
-	private Set<DiscreteInternalVariable> rejectedVariables;
+	private final BBDiscreteInternalFunction wrappedFunction;
+	private final Set<DiscreteInternalVariable> rejectedVariables;
 	private boolean debug;
-	private BBFunctionCache cache;
+	private final BBFunctionCache cache;
 
 	public MinimisingFunction(BBDiscreteInternalFunction wrappedFunction,
 			Set<DiscreteInternalVariable> rejectedVariables) {
 		super(wrappedFunction.getName());
 		setOwningAgentIdentifier(wrappedFunction.getOwningAgentIdentifier());
 
-		Validate.isTrue(wrappedFunction.getVariableDependencies().containsAll(
-				rejectedVariables), "Rejected variables have to be a subset "
-				+ "of the variable dependencies");
+		Validate.isTrue(
+				wrappedFunction.getVariableDependencies().containsAll(
+						rejectedVariables),
+				"Rejected variables have to be a subset "
+						+ "of the variable dependencies");
 
 		this.wrappedFunction = wrappedFunction;
 		this.rejectedVariables = rejectedVariables;
@@ -139,11 +141,11 @@ private double getBound(PartialJointVariableState partialState,
 			// expand children to find maximum value
 			for (PartialJointVariableState partialJointVariableState : children) {
 				if (lower)
-					bestUtility = Math.min(bestUtility, getBound(
-							partialJointVariableState, true));
+					bestUtility = Math.min(bestUtility,
+							getBound(partialJointVariableState, true));
 				else
-					bestUtility = Math.max(bestUtility, getBound(
-							partialJointVariableState, false));
+					bestUtility = Math.max(bestUtility,
+							getBound(partialJointVariableState, false));
 			}
 
 			// store values so recomputation is not needed
@@ -160,7 +162,7 @@ private double getBound(PartialJointVariableState partialState,
 		// JointStateIterator(
 		// (Set<? extends DiscreteVariable<?>>) rejectedVariables);
 		//
-		//		
+		//
 		// double bestUtility = lower ? Double.POSITIVE_INFINITY
 		// : Double.NEGATIVE_INFINITY;
 		//
@@ -189,8 +191,9 @@ private double getBound(PartialJointVariableState partialState,
 	private double getLeafValue(PartialJointVariableState<?> partialState) {
 		double bestUtility = Double.POSITIVE_INFINITY;
 
-		JointStateIterator fixedVariableValueIterator = new JointStateIterator(
-				(Set<? extends DiscreteVariable<?>>) rejectedVariables);
+		JointStateIterator fixedVariableValueIterator = null; // new
+																// JointStateIterator(
+		// (Set<? extends DiscreteVariable<?>>) rejectedVariables);
 
 		while (fixedVariableValueIterator.hasNext()) {
 			VariableJointState next = fixedVariableValueIterator.next();
@@ -210,8 +213,8 @@ private double getLeafValue(PartialJointVariableState<?> partialState) {
 				throw new IllegalArgumentException();
 			}
 
-			bestUtility = Math.min(bestUtility, wrappedFunction
-					.evaluate(combinedState.getJointState()));
+			bestUtility = Math.min(bestUtility,
+					wrappedFunction.evaluate(combinedState.getJointState()));
 		}
 
 		return bestUtility;
@@ -253,7 +256,7 @@ public void debug(PartialJointVariableState state) {
 		System.out.println("___*******END MIN FUNCTION RESULT*******___");
 
 	}
-	
+
 	@Override
 	public String toString() {
 		return "Minimising" + super.toString();
diff --git a/src/main/java/maxSumController/io/GlobalConflictsMetric.java b/src/main/java/maxSumController/io/GlobalConflictsMetric.java
index dc8a903..b422c81 100644
--- a/src/main/java/maxSumController/io/GlobalConflictsMetric.java
+++ b/src/main/java/maxSumController/io/GlobalConflictsMetric.java
@@ -1,11 +1,9 @@
 package maxSumController.io;
 
-import java.util.Collection;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 
-import maxSumController.DiscreteInternalFunction;
 import maxSumController.DiscreteVariableState;
 import maxSumController.Function;
 import maxSumController.GlobalMetric;
@@ -43,22 +41,22 @@ public double evaluate(MaxSumController<?, ?, ?> controller) {
 		return conflicts / 2;
 	}
 
-	
-	
 	private Set<DiscreteVariable<?>> getNeighbouringVariables(
 			InternalVariable<?, ?> variable) {
 		Set<DiscreteVariable<?>> neighbours = new HashSet<DiscreteVariable<?>>();
 		Set<Function> functions = variable.getFunctionDependencies();
 		int vid = Integer.valueOf(variable.getName().substring(1));
 
-		for (Function function : functions) {
-			if (vid == Integer.valueOf(function.getName().substring(1))) {
-				DiscreteInternalFunction ifunction = (DiscreteInternalFunction) function;
-				neighbours
-						.addAll((Collection<? extends DiscreteVariable<?>>) ifunction
-								.getVariableDependencies());
-			}
-		}
-		return neighbours;
+		// for (Function function : functions) {
+		// if (vid == Integer.valueOf(function.getName().substring(1))) {
+		// DiscreteInternalFunction ifunction = (DiscreteInternalFunction)
+		// function;
+		// neighbours
+		// .addAll((Collection<? extends DiscreteVariable<?>>) ifunction
+		// .getVariableDependencies());
+		// }
+		// }
+		throw new IllegalArgumentException("Not implemented");
+		// return neighbours;
 	}
 }