Atomic instead of volatile to match counter

src/engine/loot/WorkOrder.java

@@ -29,6 +29,8 @@ import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Delayed;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
 
 public class WorkOrder implements Delayed {
 
@@ -41,7 +43,7 @@ public class WorkOrder implements Delayed {
 
     public int workOrderID;
     public NPC vendor;
-    public volatile int slots_used;
+    public AtomicInteger slots_used = new AtomicInteger(0);
     public int total_to_produce;
     public int total_produced;
     public boolean multiple_slot_request;
@@ -53,7 +55,7 @@ public class WorkOrder implements Delayed {
     public int suffixToken;
     public long rollingDuration;
     public long completionTime;
-    public volatile boolean runCompleted = false;
+    public AtomicBoolean runCompleted = new AtomicBoolean(false);
 
     // This collection is serialized to the vendor rolling window in ManageNPCMsg.
 
@@ -70,7 +72,7 @@ public class WorkOrder implements Delayed {
 
         this.workOrderID = jsonWorkOrder.getInt("workOrderID");
         this.vendor = NPC.getNPC(jsonWorkOrder.getInt("vendor"));
-        this.slots_used = jsonWorkOrder.getInt("slots_used");
+        this.slots_used.set(jsonWorkOrder.getInt("slots_used"));
         this.total_to_produce = jsonWorkOrder.getInt("total_to_produce");
         this.total_produced = jsonWorkOrder.getInt("total_produced");
         this.multiple_slot_request = jsonWorkOrder.getBoolean("multiple_slot_request");
@@ -78,10 +80,9 @@ public class WorkOrder implements Delayed {
         this.item_name_override = jsonWorkOrder.getString("item_name_override");
         this.prefixToken = jsonWorkOrder.getInt("prefixToken");
         this.suffixToken = jsonWorkOrder.getInt("suffixToken");
-        this.slots_used = jsonWorkOrder.getInt("slots_used");
         this.rollingDuration = jsonWorkOrder.getLong("rollingDuration");
         this.completionTime = jsonWorkOrder.getLong("completionTime");
-        this.runCompleted = jsonWorkOrder.getBoolean("runCompleted");
+        this.runCompleted.set(jsonWorkOrder.getBoolean("runCompleted"));
 
         JSONObject productionCostMap = jsonWorkOrder.getJSONObject("production_cost");