2 files changed, 7 insertions, 9 deletions

diff --git a/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java b/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java
index c90dd005..b98a391d 100644
--- a/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java
+++ b/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java
@@ -4,6 +4,8 @@
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
+ *  Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
@@ -22,7 +24,7 @@
 
 package org.onap.music.datastore.jsonobjects;
 
-import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@@ -34,7 +36,7 @@ import io.swagger.annotations.ApiModelProperty;
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class JsonDelete {
 
-    private ArrayList<String> columns = null;
+    private List<String> columns = null;
     private Map<String, String> consistencyInfo;
     private Map<String, Object> conditions;
     String ttl, timestamp;
@@ -59,11 +61,11 @@ public class JsonDelete {
     }
 
     @ApiModelProperty(value = "Column values")
-    public ArrayList<String> getColumns() {
+    public List<String> getColumns() {
         return columns;
     }
 
-    public void setColumns(ArrayList<String> columns) {
+    public void setColumns(List<String> columns) {
         this.columns = columns;
     }
 
diff --git a/src/main/java/org/onap/music/rest/RestMusicDataAPI.java b/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
index 0010ed1a..80654935 100755
--- a/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
+++ b/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
@@ -25,12 +25,10 @@
 package org.onap.music.rest;
 
 import java.nio.ByteBuffer;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
-import javax.servlet.http.HttpServletResponse;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.GET;
@@ -41,7 +39,6 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.Context;
-import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.MultivaluedMap;
 import javax.ws.rs.core.Response;
@@ -73,7 +70,6 @@ import org.onap.music.main.MusicUtil;
 import org.onap.music.main.ResultType;
 import org.onap.music.main.ReturnType;
 import org.onap.music.response.jsonobjects.JsonResponse;
-import org.onap.music.service.impl.MusicZKCore;
 
 import com.datastax.driver.core.DataType;
 import com.datastax.driver.core.ResultSet;
@@ -1204,7 +1200,7 @@ public class RestMusicDataAPI {
         StringBuilder columnString = new StringBuilder();
 
         int counter = 0;
-        ArrayList<String> columnList = delObj.getColumns();
+        List<String> columnList = delObj.getColumns();
         if (columnList != null) {
             for (String column : columnList) {
                 columnString.append(column);