Handle effects with infinite duration (#3834)

core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaUpdateMobEffectTranslator.java

@@ -45,9 +45,15 @@ public class JavaUpdateMobEffectTranslator extends PacketTranslator<ClientboundU
         if (entity == null)
             return;
 
+        int duration = packet.getDuration();
+        if (duration < 0) {
+            // java edition uses -1 for infinite, but bedrock doesn't have infinite
+            duration = Integer.MAX_VALUE;
+        }
+
         MobEffectPacket mobEffectPacket = new MobEffectPacket();
         mobEffectPacket.setAmplifier(packet.getAmplifier());
-        mobEffectPacket.setDuration(packet.getDuration());
+        mobEffectPacket.setDuration(duration);
         mobEffectPacket.setEvent(MobEffectPacket.Event.ADD);
         mobEffectPacket.setRuntimeEntityId(entity.getGeyserId());
         mobEffectPacket.setParticles(packet.isShowParticles());