diff --git a/Minecraft/src/main/java/com/microsoft/Malmo/Client/ClientStateMachine.java b/Minecraft/src/main/java/com/microsoft/Malmo/Client/ClientStateMachine.java
index f2a590f42..d92875996 100755
--- a/Minecraft/src/main/java/com/microsoft/Malmo/Client/ClientStateMachine.java
+++ b/Minecraft/src/main/java/com/microsoft/Malmo/Client/ClientStateMachine.java
@@ -1444,7 +1444,7 @@ private void sendData() {
                 MultidimensionalReward reward = new MultidimensionalReward();
                 currentMissionBehaviour().rewardProducer.getReward(currentMissionInit(), reward);
                 if (!reward.isEmpty()) {
-                    if (this.rewardSocket.sendTCPString(reward.getAsStringAndClear())) {
+                    if (this.rewardSocket.sendTCPString(reward.getAsString())) {
                         this.failedTCPRewardSendCount = 0; // Reset the count of
                                                            // consecutive TCP
                                                            // failures.
@@ -1597,8 +1597,10 @@ protected void execute() {
                                                                        // this
                                                                        // manually.
                 missionEnded.setHumanReadableStatus(report);
-                if(!ClientStateMachine.this.finalReward.isEmpty())
-                    missionEnded.setReward(ClientStateMachine.this.finalReward.getAndClear());
+                if(!ClientStateMachine.this.finalReward.isEmpty()) {
+                    missionEnded.setReward(ClientStateMachine.this.finalReward.getAsReward());
+                    ClientStateMachine.this.finalReward.clear();
+                }
                 // And send it to the agent to inform it that the mission has
                 // ended:
                 sendMissionEnded(missionEnded);
diff --git a/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/MultidimensionalReward.java b/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/MultidimensionalReward.java
index 1bcc7150a..7281fbe8f 100644
--- a/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/MultidimensionalReward.java
+++ b/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/MultidimensionalReward.java
@@ -56,7 +56,7 @@ public void add(int dimension, float value) {
         if(this.map.containsKey(dimension))
             this.map.put(dimension, this.map.get(dimension) + value);
         else
-            this.map.put(dimension, value );
+            this.map.put(dimension, value);
     }
 
     /**
@@ -66,7 +66,7 @@ public void add(int dimension, float value) {
      *            the other multidimensional reward structure.
      */
     public void add(MultidimensionalReward other) {
-        for (HashMap.Entry<Integer, Float> entry : this.map.entrySet()) {
+        for (HashMap.Entry<Integer, Float> entry : other.map.entrySet()) {
             Integer dimension = entry.getKey();
             Float reward_value = entry.getValue();
             this.add(dimension.intValue(), reward_value.floatValue());
@@ -74,12 +74,11 @@ public void add(MultidimensionalReward other) {
     }
 
     /**
-     * Retrieve the reward structure as defined by the schema, and reset the
-     * storage.
+     * Retrieve the reward structure as defined by the schema.
      * 
      * @return the reward structure as defined by the schema.
      */
-    public Reward getAndClear() {
+    public Reward getAsReward() {
         Reward reward = new Reward();
         for (HashMap.Entry<Integer, Float> entry : this.map.entrySet()) {
             Integer dimension = entry.getKey();
@@ -89,7 +88,6 @@ public Reward getAndClear() {
             reward_entry.setValue(new BigDecimal(reward_value));
             reward.getValue().add(reward_entry);
         }
-        this.clear();
         return reward;
     }
 
@@ -98,11 +96,11 @@ public Reward getAndClear() {
      * 
      * @return the XML string.
      */
-    public String getAsStringAndClear() {
+    public String getAsString() {
         // Create a string XML representation:
         String rewardString = null;
         try {
-            rewardString = SchemaHelper.serialiseObject(this.getAndClear(), Reward.class);
+            rewardString = SchemaHelper.serialiseObject(this.getAsReward(), Reward.class);
         } catch (JAXBException e) {
             System.out.println("Caught reward serialization exception: " + e);
         }
diff --git a/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/RewardForItemBase.java b/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/RewardForItemBase.java
index 410d6f26c..4f521365d 100755
--- a/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/RewardForItemBase.java
+++ b/Minecraft/src/main/java/com/microsoft/Malmo/MissionHandlers/RewardForItemBase.java
@@ -48,7 +48,8 @@ protected void addItemSpecToRewardStructure(ItemSpec is) {
     protected void accumulateReward(int dimension, ItemStack stack) {
         String item = stack.getItem().getUnlocalizedName();
         Float f = this.rewardMap.get(item);
-        if (f != null)
+        if (f != null) {
             this.accumulatedRewards.add(dimension, f * stack.stackSize);
+        }
     }
 }