Replace deprecated JsonObject.readFrom() with Json.parse().asObject

Change-Id: I9e6e5a83edfd2c6abc694c1cc1e939b0b826e980
diff --git a/web/api/src/test/java/org/onosproject/rest/HostResourceTest.java b/web/api/src/test/java/org/onosproject/rest/HostResourceTest.java
index 5ac483d..472ed0f 100644
--- a/web/api/src/test/java/org/onosproject/rest/HostResourceTest.java
+++ b/web/api/src/test/java/org/onosproject/rest/HostResourceTest.java
@@ -21,6 +21,7 @@
 import java.util.HashSet;
 import java.util.Set;
 
+import com.eclipsesource.json.Json;
 import com.sun.jersey.api.client.ClientResponse;
 import org.hamcrest.Description;
 import org.hamcrest.Matchers;
@@ -273,7 +274,7 @@
         String response = rs.path("hosts").get(String.class);
         assertThat(response, containsString("{\"hosts\":["));
 
-        final JsonObject result = JsonObject.readFrom(response);
+        final JsonObject result = Json.parse(response).asObject();
         assertThat(result, notNullValue());
 
         assertThat(result.names(), hasSize(1));
@@ -308,7 +309,7 @@
 
         WebResource rs = resource();
         String response = rs.path("hosts/00:00:11:00:00:01%2F1").get(String.class);
-        final JsonObject result = JsonObject.readFrom(response);
+        final JsonObject result = Json.parse(response).asObject();
         assertThat(result, matchesHost(host1));
     }
 
@@ -334,7 +335,7 @@
 
         WebResource rs = resource();
         String response = rs.path("hosts/00:00:11:00:00:01/1").get(String.class);
-        final JsonObject result = JsonObject.readFrom(response);
+        final JsonObject result = Json.parse(response).asObject();
         assertThat(result, matchesHost(host1));
     }