From deab593bc30495c3601a13b832f95381914c90fb Mon Sep 17 00:00:00 2001 From: wangyuan Date: Mon, 13 May 2019 18:35:55 +0800 Subject: [PATCH] fix null --- .../src/main/java/com/ljsd/jieling/logic/arena/ArenaLogic.java | 3 +++ 1 file changed, 3 insertions(+) diff --git a/serverlogic/src/main/java/com/ljsd/jieling/logic/arena/ArenaLogic.java b/serverlogic/src/main/java/com/ljsd/jieling/logic/arena/ArenaLogic.java index 82fcb1ce8..b1f39a9b1 100644 --- a/serverlogic/src/main/java/com/ljsd/jieling/logic/arena/ArenaLogic.java +++ b/serverlogic/src/main/java/com/ljsd/jieling/logic/arena/ArenaLogic.java @@ -348,6 +348,9 @@ public class ArenaLogic { } private String randomSet(Set infos){ + if(infos == null || infos.isEmpty()){ + return null; + } int num = MathUtils.randomInt(infos.size()); for(String id : infos){ if(num-- == 0){