拉黑逻辑

core/src/main/java/com/wecloud/im/action/NormalChatAction.java

@@ -265,7 +265,7 @@ public class NormalChatAction {
     private boolean black(String reqId, ImClient imClientSender, List<ImConversationMembers> membersList, Channel channel) {
         String meClientId = imClientSender.getClientId();
         String heClientId;
-        if(membersList.get(0).getClientId().equals(meClientId)) {
+        if(membersList.get(0).getClientId() != null && membersList.get(0).getClientId().equals(meClientId)) {
             heClientId = membersList.get(1).getClientId();
         } else {
             heClientId = membersList.get(0).getClientId();