Fixed double quoting of JsonResponse

pom.xml

@@ -616,9 +616,9 @@
             </dependency>
 
             <dependency>
-                <groupId>commons-lang</groupId>
-                <artifactId>commons-lang</artifactId>
-                <version>2.4</version>
+                <groupId>org.apache.commons</groupId>
+                <artifactId>commons-lang3</artifactId>
+                <version>3.4</version>
             </dependency>
         </dependencies>
     </dependencyManagement>

typesystem/pom.xml

@@ -126,8 +126,8 @@
         </dependency>
 
         <dependency>
-            <groupId>commons-lang</groupId>
-            <artifactId>commons-lang</artifactId>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
         </dependency>
     </dependencies>
 

typesystem/src/test/java/org/apache/hadoop/metadata/typesystem/types/TypeSystemTest.java

@@ -19,7 +19,7 @@
 package org.apache.hadoop.metadata.typesystem.types;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.commons.lang.RandomStringUtils;
+import org.apache.commons.lang3.RandomStringUtils;
 import org.apache.hadoop.metadata.typesystem.types.utils.TypesUtil;
 import org.testng.Assert;
 import org.testng.annotations.AfterMethod;

webapp/pom.xml

@@ -104,6 +104,11 @@
         </dependency>
 
         <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+
+        <dependency>
             <groupId>com.tinkerpop.blueprints</groupId>
             <artifactId>blueprints-core</artifactId>
         </dependency>

webapp/src/main/java/org/apache/hadoop/metadata/web/resources/RexsterGraphResource.java

@@ -298,7 +298,7 @@ public class RexsterGraphResource {
                 String message = "Edge with [" + edgeId + "] cannot be found.";
                 LOG.info(message);
                 throw new WebApplicationException(Response.status(Response.Status.NOT_FOUND)
-                        .entity(JSONObject.quote(message)).build());
+                        .entity(Servlets.escapeJsonString(message)).build());
             }
 
             JSONObject response = new JSONObject();
@@ -389,7 +389,7 @@ public class RexsterGraphResource {
                 countOnly = false;
             } else {
                 throw new WebApplicationException(Response.status(Response.Status.BAD_REQUEST)
-                        .entity(JSONObject.quote(directionSegment + " segment was invalid."))
+                        .entity(Servlets.escapeJsonString(directionSegment + " segment was invalid."))
                         .build());
             }
         }

webapp/src/main/java/org/apache/hadoop/metadata/web/util/Servlets.java

@@ -18,9 +18,12 @@
 
 package org.apache.hadoop.metadata.web.util;
 
+import com.google.common.base.Preconditions;
 import org.apache.commons.io.IOUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringEscapeUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.hadoop.metadata.MetadataServiceClient;
+import org.apache.hadoop.metadata.ParamChecker;
 import org.codehaus.jettison.json.JSONException;
 import org.codehaus.jettison.json.JSONObject;
 import org.slf4j.Logger;
@@ -38,6 +41,8 @@ import java.io.StringWriter;
  */
 public final class Servlets {
 
+    public static final String QUOTE = "\"";
+
     private static final Logger LOG = LoggerFactory.getLogger(Servlets.class);
     private Servlets() {
         /* singleton */
@@ -117,7 +122,7 @@ public final class Servlets {
 
     public static Response getErrorResponse(String message, Response.Status status) {
         JSONObject errorJson = new JSONObject();
-        Object errorEntity = JSONObject.quote(message);
+        Object errorEntity = Servlets.escapeJsonString(message);
         try {
             errorJson.put(MetadataServiceClient.ERROR, errorEntity);
             errorEntity = errorJson;
@@ -140,4 +145,9 @@ public final class Servlets {
     public static String getRequestId() {
         return Thread.currentThread().getName();
     }
+
+    public static String escapeJsonString(String inputStr) {
+        ParamChecker.notNull(inputStr, "Input String cannot be null");
+        return StringEscapeUtils.escapeJson(inputStr);
+    }
 }

webapp/src/test/java/org/apache/hadoop/metadata/web/resources/EntityJerseyResourceIT.java

@@ -397,6 +397,7 @@ public class EntityJerseyResourceIT extends BaseResourceIT {
 
         JSONObject response = new JSONObject(responseAsString);
         Assert.assertNotNull(response.get(MetadataServiceClient.ERROR));
+        Assert.assertEquals(response.getString(MetadataServiceClient.ERROR), "trait=" + traitName + " should be defined in type system before it can be deleted");
         Assert.assertNotNull(response.get(MetadataServiceClient.STACKTRACE));
     }