fixed HO, xICIC timeout and Context Update
diff --git a/src/main/java/org.onosproject.xran/impl/DefaultXranStore.java b/src/main/java/org.onosproject.xran/impl/DefaultXranStore.java
index 279f46d..9dab964 100644
--- a/src/main/java/org.onosproject.xran/impl/DefaultXranStore.java
+++ b/src/main/java/org.onosproject.xran/impl/DefaultXranStore.java
@@ -230,7 +230,7 @@
     }
 
     @Override
-    public void modifyCellRrmConf(RnibCell cell, JsonNode rrmConf) {
+    public void modifyCellRrmConf(RnibCell cell, JsonNode rrmConf) throws Exception {
         List<RnibLink> linkList = getLinksByECGI(cell.getEcgi());
         List<RnibUe> ueList = linkList.stream().map(link -> link.getLinkId().getUe()).collect(Collectors.toList());