-import java.lang.reflect.Type;
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-import java.util.Collections;
-import java.util.Date;
-
-import javax.annotation.PostConstruct;
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.MultivaluedHashMap;
-import javax.ws.rs.core.Response;
-
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;