src/main/java/com/genersoft/iot/vmp/gb28181/transmit/callback/DeferredResultHolder.java
@@ -25,6 +25,10 @@ public static final String CALLBACK_CMD_PlAY = "CALLBACK_PLAY"; public static final String CALLBACK_CMD_STOP = "CALLBACK_STOP"; public static final String CALLBACK_CMD_MOBILEPOSITION = "CALLBACK_MOBILEPOSITION"; private Map<String, DeferredResult> map = new ConcurrentHashMap<String, DeferredResult>(); public void put(String key, DeferredResult result) {