1，解决删除用户保留信息时错误问题；2，server api获取用户信息时，可以指定获取包含被删除用户。

broker/src/main/java/cn/wildfirechat/server/ThreadPoolExecutorWrapper.java

@@ -35,6 +35,9 @@ public class ThreadPoolExecutorWrapper {
         executor.execute(() -> {
             try {
                 task.run();
+            } catch (Exception e) {
+                e.printStackTrace();
+                LOG.info("execute error = {}", e.toString());
             } finally {
                 int endCount = runCounter.decrementAndGet();
                 LOG.debug("Finish task and current task count {} use time {}", endCount, System.currentTimeMillis()-startTime);

broker/src/main/java/com/xiaoleilu/loServer/action/admin/GetUserAction.java

@@ -49,7 +49,7 @@ public class GetUserAction extends AdminAction {
                 }
 
                 RestResult result;
-                if (user == null || user.getDeleted() > 0) {
+                if (user == null || (user.getDeleted() > 0 && !inputUserId.isIncludeDeleted())) {
                     result = RestResult.resultOf(ErrorCode.ERROR_CODE_NOT_EXIST);
                 } else {
                     result = RestResult.ok(InputOutputUserInfo.fromPbUser(user));

broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java

@@ -3176,7 +3176,7 @@ public class MemoryMessagesStore implements IMessagesStore {
         IMap<String, WFCMessage.User> mUserMap = hzInstance.getMap(USERS);
         WFCMessage.User us = mUserMap.get(userId);
         if (us != null) {
-            WFCMessage.User.Builder builder = WFCMessage.User.newBuilder().setUpdateDt(System.currentTimeMillis()).setDeleted(1);
+            WFCMessage.User.Builder builder = us.toBuilder().setUpdateDt(System.currentTimeMillis()).setDeleted(1);
 
             if(keepFullInfoWhenDestroyUser) {
                 if(!keepMobileWhenDestroyUser) {