src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java
@@ -41,6 +41,8 @@ public static final String CALLBACK_CMD_ALARM = "CALLBACK_ALARM"; public static final String CALLBACK_CMD_BROADCAST = "CALLBACK_BROADCAST"; private Map<String, DeferredResult> map = new ConcurrentHashMap<String, DeferredResult>(); public void put(String key, DeferredResult result) {