From 931359980b799549d5525fbb7368e8bba819118b Mon Sep 17 00:00:00 2001
From: Agetian <stavdev@mail.ru>
Date: Fri, 22 May 2015 13:44:42 +0000
Subject: [PATCH] - Fix an issue with Retribution of the Ancients causing a NPE
 when X=0.

---
 .../src/main/java/forge/player/HumanCostDecision.java     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/forge-gui/src/main/java/forge/player/HumanCostDecision.java b/forge-gui/src/main/java/forge/player/HumanCostDecision.java
index 30e0f9584de..fc7e633179f 100644
--- a/forge-gui/src/main/java/forge/player/HumanCostDecision.java
+++ b/forge-gui/src/main/java/forge/player/HumanCostDecision.java
@@ -898,6 +898,10 @@ public class HumanCostDecision extends CostDecisionMakerBase {
         }
 
         private int getDistibutedCounters() {
+            if (cardsChosen == null) {
+                return 0;
+            }
+
             int sum = 0;
             for (final Entry<Card, Integer> kv : cardsChosen.entrySet()) {
                 sum += kv.getValue().intValue();
@@ -965,6 +969,10 @@ public class HumanCostDecision extends CostDecisionMakerBase {
 
         final CardCollectionView validCards = CardLists.getValidCards(player.getCardsIn(cost.zone), type.split(";"), player, source);
         if (cost.zone.equals(ZoneType.Battlefield)) {
+            if (cntRemoved == 0) {
+                return PaymentDecision.card(source, 0);
+            }
+
             final InputSelectCardToRemoveCounter inp = new InputSelectCardToRemoveCounter(controller, cntRemoved, cost.counter, validCards);
             inp.setMessage("Remove %d " + cost.counter.getName() + " counters from " + cost.getDescriptiveType());
             inp.setCancelAllowed(true);