junk, complete and produce wrapped with same lock as warehouse.

src/engine/gameManager/ForgeManager.java

@@ -14,10 +14,7 @@ import engine.loot.WorkOrder;
 import engine.mbEnums;
 import engine.net.DispatchMessage;
 import engine.net.client.msg.ItemProductionMsg;
-import engine.objects.Item;
-import engine.objects.ItemTemplate;
-import engine.objects.NPC;
-import engine.objects.Warehouse;
+import engine.objects.*;
 import engine.powers.EffectsBase;
 import org.pmw.tinylog.Logger;
 
@@ -108,6 +105,10 @@ public enum ForgeManager implements Runnable {
         if (validation_result != 0)
             return validation_result;
 
+        City city = workOrder.vendor.building.getCity();
+        city.transactionLock.writeLock().lock();
+
+        try {
         // Configure this production run.
 
         workOrder.workOrderID = wordOrderCounter.incrementAndGet();
@@ -137,8 +138,11 @@ public enum ForgeManager implements Runnable {
 
         forge.add(workOrder);
 
-        Logger.info(workOrder.toString());
-
+        } catch (Exception e) {
+            Logger.error(e);
+        } finally {
+            city.transactionLock.writeLock().unlock();
+        }
         return validation_result;
     }