Remove only one Lambda Exp for JAVA 7 am: 0c7ab8c20a am: 5db150a742

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Messaging/+/1343464

Change-Id: I7ea06fcff9be951ae5994ca1d9fc5d7d1efe648e
diff --git a/src/com/android/messaging/datamodel/DataModelImpl.java b/src/com/android/messaging/datamodel/DataModelImpl.java
index 5d2217d..bbb695b 100644
--- a/src/com/android/messaging/datamodel/DataModelImpl.java
+++ b/src/com/android/messaging/datamodel/DataModelImpl.java
@@ -252,8 +252,10 @@
                 if (subId <= ParticipantData.DEFAULT_SELF_SUB_ID) {
                     subId = PhoneUtils.getDefault().getDefaultSmsSubscriptionId();
                 }
-                sConnectivityUtilInstanceCacheN.computeIfAbsent(
-                        subId, key -> new ConnectivityUtil(mContext, key));
+                if (!sConnectivityUtilInstanceCacheN.containsKey(subId)) {
+                    sConnectivityUtilInstanceCacheN.put(
+                            subId, new ConnectivityUtil(mContext, subId));
+                }
             }
         });
     }