From ea71e8a358ec62a6d43e1d7964638a1faa1ff733 Mon Sep 17 00:00:00 2001
From: CaiHQ <caihq@pku.edu.cn>
Date: Tue, 28 Jun 2022 19:49:54 +0800
Subject: [PATCH] add join support

---
 src/main/java/org/bdware/server/action/CMActions.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/org/bdware/server/action/CMActions.java b/src/main/java/org/bdware/server/action/CMActions.java
index e16163d..94423c9 100644
--- a/src/main/java/org/bdware/server/action/CMActions.java
+++ b/src/main/java/org/bdware/server/action/CMActions.java
@@ -1307,6 +1307,11 @@ public class CMActions implements OnHashCallback {
         LOGGER.info("pruneKilledContract!!!");
         Set<ContractMeta> toRemove = new HashSet<>();
         for (ContractMeta meta : map.values()) {
+            if (meta.getStatus() == null) {
+                toRemove.add(meta);
+                continue;
+            }
+
             if (meta.getStatus().equals(ContractStatusEnum.KILLED))
                 toRemove.add(meta);
             if (meta.getName() == null || meta.getName().length() == 0)