From d853ca6615b26198b228f23bb4eaa1a392e474b0 Mon Sep 17 00:00:00 2001
From: tool4EvEr <tool4EvEr@192.168.0.59>
Date: Fri, 11 Jun 2021 12:33:37 +0200
Subject: [PATCH] Fix CostTapType NPE

---
 forge-game/src/main/java/forge/game/keyword/Hexproof.java   | 3 +--
 forge-gui/src/main/java/forge/player/HumanCostDecision.java | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/forge-game/src/main/java/forge/game/keyword/Hexproof.java b/forge-game/src/main/java/forge/game/keyword/Hexproof.java
index e6a6fce1834..bdd15dd5ca2 100644
--- a/forge-game/src/main/java/forge/game/keyword/Hexproof.java
+++ b/forge-game/src/main/java/forge/game/keyword/Hexproof.java
@@ -32,6 +32,5 @@ public class Hexproof extends KeywordInstance<Hexproof> {
         }
         return false;
     }
-    
-    
+
 }
diff --git a/forge-gui/src/main/java/forge/player/HumanCostDecision.java b/forge-gui/src/main/java/forge/player/HumanCostDecision.java
index 4ce3e8492db..6e3920266d5 100644
--- a/forge-gui/src/main/java/forge/player/HumanCostDecision.java
+++ b/forge-gui/src/main/java/forge/player/HumanCostDecision.java
@@ -1096,7 +1096,7 @@ public class HumanCostDecision extends CostDecisionMakerBase {
             c = AbilityUtils.calculateAmount(source, amount, ability);
         }
 
-        if (c == 0) {
+        if (c != null && c == 0) {
             return PaymentDecision.number(0);
         }