diff --git a/forge-ai/src/main/java/forge/ai/ComputerUtil.java b/forge-ai/src/main/java/forge/ai/ComputerUtil.java
index bba4fd5265e..6f98328dc1c 100644
--- a/forge-ai/src/main/java/forge/ai/ComputerUtil.java
+++ b/forge-ai/src/main/java/forge/ai/ComputerUtil.java
@@ -2450,7 +2450,7 @@ public class ComputerUtil {
         // not enough good choices, need to fill the rest
         int minDiff = min - goodChoices.size();
         if (minDiff > 0) {
-            goodChoices.addAll(Aggregates.random(CardLists.filter(validCards, Predicates.not(Predicates.in(goodChoices))), minDiff));
+            goodChoices.addAll(Aggregates.random(CardLists.filter(validCards, Predicates.not(goodChoices::contains)), minDiff));
             return goodChoices;
         }
 
diff --git a/forge-ai/src/main/java/forge/ai/ComputerUtilCost.java b/forge-ai/src/main/java/forge/ai/ComputerUtilCost.java
index 7da2db7aa8d..66316508a8d 100644
--- a/forge-ai/src/main/java/forge/ai/ComputerUtilCost.java
+++ b/forge-ai/src/main/java/forge/ai/ComputerUtilCost.java
@@ -924,7 +924,7 @@ public class ComputerUtilCost {
     public static CardCollection paymentChoicesWithoutTargets(Iterable<Card> choices, SpellAbility source, Player ai) {
         if (source.usesTargeting()) {
             final CardCollection targets = new CardCollection(source.getTargets().getTargetCards());
-            choices = Iterables.filter(choices, Predicates.not(Predicates.and(CardPredicates.isController(ai), Predicates.in(targets))));
+            choices = Iterables.filter(choices, Predicates.not(Predicates.and(CardPredicates.isController(ai), targets::contains)));
         }
         return new CardCollection(choices);
     }
diff --git a/forge-core/src/main/java/forge/util/Predicates.java b/forge-core/src/main/java/forge/util/Predicates.java
index c7c1f4cb1a6..563d646e702 100644
--- a/forge-core/src/main/java/forge/util/Predicates.java
+++ b/forge-core/src/main/java/forge/util/Predicates.java
@@ -1,6 +1,5 @@
 package forge.util;
 
-import java.util.Collection;
 import java.util.Objects;
 import java.util.function.Function;
 import java.util.function.Predicate;
@@ -44,7 +43,4 @@ public class Predicates {
         return x -> Objects.equals(target, x);
     }
 
-    public static <T> Predicate<T> in(Collection<? extends T> target) {
-        return target::contains;
-    }
 }
diff --git a/forge-gui/src/main/java/forge/gamemodes/net/server/FServerManager.java b/forge-gui/src/main/java/forge/gamemodes/net/server/FServerManager.java
index 683b6a5d2d9..6c559cb04ee 100644
--- a/forge-gui/src/main/java/forge/gamemodes/net/server/FServerManager.java
+++ b/forge-gui/src/main/java/forge/gamemodes/net/server/FServerManager.java
@@ -147,7 +147,7 @@ public final class FServerManager {
         broadcastExcept(event, Collections.singleton(notTo));
     }
     public void broadcastExcept(final NetEvent event, final Collection<RemoteClient> notTo) {
-        broadcastTo(event, Iterables.filter(clients.values(), Predicates.not(Predicates.in(notTo))));
+        broadcastTo(event, Iterables.filter(clients.values(), Predicates.not(notTo::contains)));
     }
     private void broadcastTo(final NetEvent event, final Iterable<RemoteClient> to) {
         for (final RemoteClient client : to) {