diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
index 3a43461..ae70eb6 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
@@ -146,7 +146,8 @@
 
     public enum DisplayFormat {
         TEXT,
-        HTML
+        HTML,
+        JSON
     }
 
     public static Pair<Query, Integer> reWriteQuery(List<FunctionDecl> declaredFunctions,
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
index 06defbd..9915f7c 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
@@ -18,9 +18,7 @@
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.aql.translator.AqlTranslator;
-import edu.uci.ics.asterix.aql.translator.QueryResult;
 import edu.uci.ics.asterix.metadata.MetadataManager;
-import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 
@@ -339,10 +337,9 @@
                     isSet(printOptimizedLogicalPlanParam), false, true, isSet(printJob));
             MetadataManager.INSTANCE.init();
             AqlTranslator aqlTranslator = new AqlTranslator(aqlStatements, out, sessionConfig, DisplayFormat.HTML);
-            List<QueryResult> executionResults = null;
             double duration = 0;
             long startTime = System.currentTimeMillis();
-            executionResults = aqlTranslator.compileAndExecute(hcc, false);
+            aqlTranslator.compileAndExecute(hcc, false);
             long endTime = System.currentTimeMillis();
             duration = (endTime - startTime) / 1000.00;
             out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
index e1950f9..9416b0a 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/QueryResultAPIServlet.java
@@ -26,7 +26,7 @@
 import org.json.JSONArray;
 import org.json.JSONObject;
 
-import edu.uci.ics.asterix.result.ReaderUtils;
+import edu.uci.ics.asterix.result.ResultUtils;
 import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.asterix.runtime.formats.FormatUtils;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
@@ -71,7 +71,7 @@
             JSONObject jsonResponse = new JSONObject();
             JSONArray results = new JSONArray();
             while (resultReader.read(buffer) > 0) {
-                results.put(ReaderUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor(),
+                results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor(),
                         resultReader.getRecordDescriptor()));
             }
             jsonResponse.put("results", results);
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
index 5781be2..e97275b 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -85,7 +85,7 @@
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeSignature;
-import edu.uci.ics.asterix.result.ReaderUtils;
+import edu.uci.ics.asterix.result.ResultUtils;
 import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
@@ -298,7 +298,7 @@
                         buffer.clear();
                         JSONArray results = new JSONArray();
                         while (resultReader.read(buffer) > 0) {
-                            results.put(ReaderUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor(),
+                            results.put(ResultUtils.getJSONFromBuffer(buffer, resultReader.getFrameTupleAccessor(),
                                     resultReader.getRecordDescriptor()));
                         }
                         response.put("results", results);
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ReaderUtils.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
similarity index 79%
rename from asterix-app/src/main/java/edu/uci/ics/asterix/result/ReaderUtils.java
rename to asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
index ccedc98..adb8573 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ReaderUtils.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
@@ -17,9 +17,9 @@
 import java.io.DataInputStream;
 import java.nio.ByteBuffer;
 
+import org.json.JSONArray;
 import org.json.JSONException;
-
-import twitter4j.internal.org.json.JSONArray;
+import org.json.JSONObject;
 
 import edu.uci.ics.asterix.om.base.IAObject;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
@@ -27,7 +27,7 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
 import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
 
-public class ReaderUtils {
+public class ResultUtils {
     public static JSONArray getJSONFromBuffer(ByteBuffer buffer, FrameTupleAccessor fta,
             RecordDescriptor recordDescriptor) throws HyracksDataException {
         JSONArray resultRecords = new JSONArray();
@@ -52,4 +52,17 @@
         }
         return resultRecords;
     }
+
+    public static JSONObject getErrorResponse(int errorCode, String errorMessage) {
+        JSONObject errorResp = new JSONObject();
+        JSONArray errorArray = new JSONArray();
+        errorArray.put(errorCode);
+        errorArray.put(errorMessage);
+        try {
+            errorResp.put("error-code", errorArray);
+        } catch (JSONException e) {
+            // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
+        }
+        return errorResp;
+    }
 }