diff --git a/managedvms/sparkjava/README.md b/managedvms/sparkjava/README.md
new file mode 100644
index 00000000000..3f7ee8d795d
--- /dev/null
+++ b/managedvms/sparkjava/README.md
@@ -0,0 +1,49 @@
+gcloud-java example using Managed VMs & SparkJava
+=================================================
+
+This app demonstrates how to use [`gcloud-java`'s Datastore client](https://github.com/GoogleCloudPlatform/gcloud-java/tree/master/gcloud-java-datastore#google-cloud-java-client-for-datastore) from within an [App Engine Managed VM](https://cloud.google.com/appengine/docs/java/managed-vms/) project using [SparkJava](http://sparkjava.com/). The app allows you to create and modify a database of "users", which contains their ID, name, and email information. 
+
+`gcloud-java` is an idiomatic Java client for [Google Cloud Platform](https://cloud.google.com/) services. Read more about the library [here](https://github.com/GoogleCloudPlatform/gcloud-java#google-cloud-java-client).
+
+Setup
+-----
+
+1. Create a Google Developers Console project with the Datastore API enabled. [Follow these instructions](https://cloud.google.com/docs/authentication#preparation) to get your project set up. If you wish to deploy this application, you will also need to [enable billing](https://support.google.com/cloud/?rd=2#topic=6288636).
+
+2. Set up the local development environment by [installing the Google Cloud SDK](https://cloud.google.com/sdk/) and running the following commands in command line: `gcloud auth login` and `gcloud config set project [YOUR PROJECT ID]`.
+
+3. Ensure that you have Maven installed. See installation instructions [here](https://maven.apache.org/install.html).
+
+Running locally
+---------------
+
+Run the application on your local machine by typing the following into your command line from the `sparkjava` directory: `mvn clean package exec:java`. Navigate to `localhost:8080` to view and interact with the application.
+
+Deploying
+---------
+
+If you've enabled billing (step 1 in [Setup](#Setup)), you can deploy the application to the web by running `mvn gcloud:deploy` from your command line (from the `sparkjava` directory).
+
+How does it work?
+-----------------
+
+You'll notice that the source code is split into three folders: `appengine`, `java/com/google/appengine/sparkdemo`, and `resource/public`. The `appengine` folder contains a `Dockerfile` and an `app.yaml`, necessary files to [configure the VM environment](https://cloud.google.com/appengine/docs/managed-vms/config). The `java/com/google/appengine/sparkdemo` folder contains the controller code, which uses the `gcloud-java` library to modify the records in the Google Cloud Datastore. Finally, the `resource/public` folder contains the home webpage, which uses jQuery to send HTTP requests to create, remove, and update records.
+
+Spark runs the [`main` method](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/managedvms/sparkjava-demo/src/main/java/com/google/appengine/sparkdemo/Main.java) upon server startup. The `main` method creates the controller, [`UserController`](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/managedvms/sparkjava-demo/src/main/java/com/google/appengine/sparkdemo/UserController.java). The URIs used to send HTTP requests in the [home page](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/managedvms/sparkjava-demo/src/main/resources/public/index.html) correspond to methods in the `UserController` class. For example, the `index.html` code for `create` makes a `POST` request to the path `/api/users` with a body containing the name and email of a user to add. `UserController` contains the following code to process that request:
+
+```java
+post("/api/users", (req, res) -> userService.createUser(
+    req.queryParams("name"),
+    req.queryParams("email),
+), json());
+```
+This code snippet gets the name and email of the user from the POST request and passes it to `createUser` (in [`UserService.java`](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/managedvms/sparkjava-demo/src/main/java/com/google/appengine/sparkdemo/UserService.java)) to create a database record using `gcloud-java`. If you want a more in-depth tutorial on using `gcloud-java` Datastore client, see the [Getting Started](https://github.com/GoogleCloudPlatform/gcloud-java/tree/master/gcloud-java-datastore#getting-started) section in the `gcloud-java-datastore` documentation.
+
+Communication with the Google Cloud Datastore requires authentication and setting a project ID. When running locally, `gcloud-java` automatically detects your credentials and project ID because you logged into the Google Cloud SDK and set your project ID. There are also many other options for authenticating and setting a project ID. To read more, see the [Authentication](https://github.com/GoogleCloudPlatform/gcloud-java#authentication) and [Specifying a Project ID](https://github.com/GoogleCloudPlatform/gcloud-java#specifying-a-project-id) sections of the `gcloud-java` documentation.
+
+You built and ran this application using Maven. To read more about using Maven with Managed VMs, see the [Using Apache Maven documentation](https://cloud.google.com/appengine/docs/java/managed-vms/maven). While this particular project uses Maven, `gcloud-java` can also be accessed using Gradle and SBT.  See how to obtain the dependency in the [Quickstart section](https://github.com/GoogleCloudPlatform/gcloud-java#quickstart) of the `gcloud-java` documentation.
+
+License
+-------
+
+Apache 2.0 - See [LICENSE](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/LICENSE) for more information.
diff --git a/managedvms/sparkjava/pom.xml b/managedvms/sparkjava/pom.xml
new file mode 100644
index 00000000000..49ea74e938e
--- /dev/null
+++ b/managedvms/sparkjava/pom.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.appengine.sparkdemo</groupId>
+  <artifactId>sparkdemo</artifactId>
+  <version>1.0</version>
+  <dependencies>
+    <dependency>
+      <groupId>com.sparkjava</groupId>
+      <artifactId>spark-core</artifactId>
+      <version>2.3</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>1.7.12</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>2.4</version>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.gcloud</groupId>
+      <artifactId>gcloud-java</artifactId>
+      <version>0.1.1</version>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.5.1</version>
+        <configuration>
+          <source>1.8</source>
+          <target>1.8</target>
+        </configuration>
+      </plugin>
+      <plugin>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>single</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <descriptorRefs>
+            <descriptorRef>jar-with-dependencies</descriptorRef>
+          </descriptorRefs>
+          <archive>
+            <manifest>
+              <mainClass>com.google.appengine.sparkdemo.Main</mainClass>
+            </manifest>           
+          </archive>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>1.4.0</version>
+        <configuration>
+          <mainClass>com.google.appengine.sparkdemo.Main</mainClass>
+          <arguments>
+            <argument>-jar</argument>
+            <argument>target/sparkdemo-1.0-jar-with-dependencies.jar</argument>
+          </arguments>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>com.google.appengine</groupId>
+        <artifactId>gcloud-maven-plugin</artifactId>
+        <version>2.0.9.88.v20151125</version>
+        <configuration>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/managedvms/sparkjava/src/main/appengine/Dockerfile b/managedvms/sparkjava/src/main/appengine/Dockerfile
new file mode 100644
index 00000000000..9749864ab1e
--- /dev/null
+++ b/managedvms/sparkjava/src/main/appengine/Dockerfile
@@ -0,0 +1,4 @@
+FROM gcr.io/google_appengine/openjdk8
+VOLUME /tmp
+ADD sparkdemo-1.0-jar-with-dependencies.jar app.jar
+ENTRYPOINT [ "java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
diff --git a/managedvms/sparkjava/src/main/appengine/app.yaml b/managedvms/sparkjava/src/main/appengine/app.yaml
new file mode 100644
index 00000000000..e8b73970590
--- /dev/null
+++ b/managedvms/sparkjava/src/main/appengine/app.yaml
@@ -0,0 +1,2 @@
+runtime: custom
+vm: true
diff --git a/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/Main.java b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/Main.java
new file mode 100644
index 00000000000..d24e0231871
--- /dev/null
+++ b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/Main.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import static spark.Spark.port;
+
+import com.google.gcloud.datastore.DatastoreOptions;
+
+public class Main {
+
+  public static void main(String[] args) {
+    port(8080);
+    UserController userController =
+        new UserController(new UserService(DatastoreOptions.defaultInstance().service()));
+  }
+}
diff --git a/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/ResponseError.java b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/ResponseError.java
new file mode 100644
index 00000000000..c225851dca4
--- /dev/null
+++ b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/ResponseError.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+public class ResponseError {
+
+  private String message;
+
+  public ResponseError(String message, String... args) {
+    this.message = String.format(message, (Object) args);
+  }
+
+  public ResponseError(Exception e) {
+    this.message = e.getMessage();
+  }
+}
diff --git a/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/User.java b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/User.java
new file mode 100644
index 00000000000..3455f4aac8e
--- /dev/null
+++ b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/User.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import java.util.UUID;
+
+public class User {
+
+  private String id;
+  private String name;
+  private String email;
+
+  public User(String name, String email) {
+    this(UUID.randomUUID().toString(), name, email);
+  }
+
+  public User(String id, String name, String email) {
+    this.id = id;
+    this.email = email;
+    this.name = name;
+  }
+
+  public String getId() {
+    return id;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public String getEmail() {
+    return email;
+  }
+
+  void setId(String id) {
+    this.id = id;
+  }
+
+  public void setName(String name) {
+    this.name = name;
+  }
+
+  public void setEmail(String email) {
+    this.email = email;
+  }
+}
diff --git a/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserController.java b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserController.java
new file mode 100644
index 00000000000..75d57caf832
--- /dev/null
+++ b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserController.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import static spark.Spark.after;
+import static spark.Spark.delete;
+import static spark.Spark.exception;
+import static spark.Spark.get;
+import static spark.Spark.post;
+import static spark.Spark.put;
+
+import com.google.gson.Gson;
+
+import spark.ResponseTransformer;
+import spark.Spark;
+
+public class UserController {
+
+  public UserController(final UserService userService) {
+    Spark.staticFileLocation("/public");
+
+    get("/api/users", (req, res) -> userService.getAllUsers(), UserController::toJson);
+
+    post("/api/users",
+        (req, res) -> userService.createUser(req.queryParams("name"), req.queryParams("email")),
+        json());
+
+    put("/api/users/:id", (req, res) -> userService.updateUser(
+            req.params(":id"),
+            req.queryParams("name"),
+            req.queryParams("email")
+        ), json());
+
+    delete("/api/users/:id", (req, res) -> userService.deleteUser(req.params(":id")), json());
+
+    after((req, res) -> {
+          res.type("application/json");
+        });
+
+    exception(IllegalArgumentException.class, (e, req, res) -> {
+          res.status(400);
+          res.body(toJson(new ResponseError(e)));
+        });
+  }
+
+  private static String toJson(Object object) {
+    return new Gson().toJson(object);
+  }
+
+  private static ResponseTransformer json() {
+    return UserController::toJson;
+  }
+}
diff --git a/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserService.java b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserService.java
new file mode 100644
index 00000000000..eb183ac4710
--- /dev/null
+++ b/managedvms/sparkjava/src/main/java/com/google/appengine/sparkdemo/UserService.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import com.google.gcloud.datastore.Datastore;
+import com.google.gcloud.datastore.Entity;
+import com.google.gcloud.datastore.FullEntity;
+import com.google.gcloud.datastore.Key;
+import com.google.gcloud.datastore.KeyFactory;
+import com.google.gcloud.datastore.Query;
+import com.google.gcloud.datastore.QueryResults;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class UserService {
+
+  private static final String KINDNAME = "DEMO_USER";
+  private Datastore datastore;
+
+  public UserService(Datastore datastore) {
+    this.datastore = datastore;
+  }
+
+  public List<User> getAllUsers() {
+    Query<Entity> query =
+        Query.gqlQueryBuilder(Query.ResultType.ENTITY, "SELECT * FROM " + KINDNAME).build();
+    QueryResults<Entity> results = datastore.run(query);
+    List<User> users = new ArrayList<>();
+    while (results.hasNext()) {
+      Entity result = results.next();
+      users.add(
+          new User(result.getString("id"), result.getString("name"), result.getString("email")));
+    }
+    return users;
+  }
+
+  public User createUser(String name, String email) {
+    failIfInvalid(name, email);
+    User user = new User(name, email);
+    KeyFactory keyFactory = datastore.newKeyFactory().kind(KINDNAME);
+    Key key = keyFactory.newKey(user.getId());
+    FullEntity entity = Entity.builder(key)
+        .set("id", user.getId())
+        .set("name", name)
+        .set("email", email)
+        .build();
+    datastore.add(entity);
+    return user;
+  }
+
+  public String deleteUser(String id) {
+    KeyFactory keyFactory = datastore.newKeyFactory().kind(KINDNAME);
+    Key key = keyFactory.newKey(id);
+    datastore.delete(key);
+    return "ok";
+  }
+
+  public User updateUser(String id, String name, String email) {
+    failIfInvalid(name, email);
+    KeyFactory keyFactory = datastore.newKeyFactory().kind(KINDNAME);
+    Key key = keyFactory.newKey(id);
+    Entity entity = datastore.get(key);
+    if (entity == null) {
+      throw new IllegalArgumentException("No user with id '" + id + "' found");
+    } else {
+      entity = Entity.builder(entity)
+          .set("id", id)
+          .set("name", name)
+          .set("email", email)
+          .build();
+      datastore.update(entity);
+    }
+    return new User(id, name, email);
+  }
+
+  private void failIfInvalid(String name, String email) {
+    checkArgument(name != null && !name.isEmpty(), "Parameter 'name' cannot be empty");
+    checkArgument(email != null && !email.isEmpty(), "Parameter 'email' cannot be empty");
+  }
+}
diff --git a/managedvms/sparkjava/src/main/resources/public/index.html b/managedvms/sparkjava/src/main/resources/public/index.html
new file mode 100644
index 00000000000..ba7adea7ee0
--- /dev/null
+++ b/managedvms/sparkjava/src/main/resources/public/index.html
@@ -0,0 +1,172 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
+  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
+  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
+</head>
+<body>
+<div class="container" role="main">
+  <div class="jumbotron">
+     <h1>User Database</h1>
+     <p>Using App Engine Managed VMs, Google Cloud Datastore, and SparkJava.</p>
+  </div>
+  <div class="page-header">
+    <h1>All users</h1>
+    <button class="btn btn-primary datastore-add" data-action="add"
+        data-toggle="modal" data-target="#datastoreModal" pull-right>
+      <span class="glyphicon glyphicon-plus"></span> Add a new user
+    </button>
+    <div class="row">
+      <div class="col-md-12">
+        <table class="table table-striped">
+          <thead>
+            <tr>
+              <th>ID</th>
+              <th>Name</th>
+              <th>Email</th>
+              <th>Actions</th>
+            </tr>
+          </thead>
+        <tbody id="content">
+        </tbody>
+        </table>
+      </div>
+    </div>
+  </div>
+</div>
+<script>
+  $(function () {
+    load();
+    initModal();
+  });
+
+  $.ajaxSetup({
+      error: function(xhr, status, error) {
+        alert(JSON.parse(xhr.responseText).message);
+      }
+    });
+
+  function create(name, email) {
+    $.post("/api/users",
+        {name: name, email: email},
+        function(data) {
+          load();
+        });
+  }
+
+  function remove(id) {
+    $.ajax({
+      type: "delete",
+      url: "/api/users/" + id
+    }).done(function () {
+      load();
+    });
+  }
+
+  function update(id, name, email) {
+    $.ajax({
+      type: "put",
+      url: "/api/users/" + id,
+      dataType: "json",
+      data: {name: name, email: email},
+      success: function (response) {
+        load();
+      }
+    });
+  }
+
+  function load() {
+    $("#content").children().remove();
+    $.getJSON("/api/users", function (data) {
+      $.each(data, function (key, val) {
+        $("<tr><td>" + val.id + "</td><td>" + val.name + "</td><td>"
+            + val.email + "</td><td>"
+            + "<button data-action='edit' "
+            + "class='btn btn-primary btn-sm datastore-edit' "
+            + "data-toggle='modal' "
+            + "data-target='#datastoreModal' "
+            + "data-name='" + val.name + "' "
+            + "data-email='" + val.email + "' "
+            + "data-id='" + val.id + "'>"
+            + "<span class='glyphicon glyphicon-pencil'></span>"
+            + "</button>&nbsp;"
+            + "<button data-action='delete' "
+            + "class='btn btn-danger btn-sm datastore-delete' "
+            + "data-id='" + val.id + "'>"
+            + "<span class='glyphicon glyphicon-minus'></span>"
+            + "</button></td></tr>").appendTo("#content");
+      });
+      initCallbacks();
+    });
+  }
+
+  function initCallbacks() {
+    $(".datastore-delete").unbind().click(function() {
+      remove($(this).data("id"));
+    });
+  }
+
+  function initModal() {
+    $("#datastoreModal").on('show.bs.modal', function (event) {
+      var button = $(event.relatedTarget);
+      var action = button.data('action');
+      var id = button.data('id');
+      var datastoreAction = $("#datastoreAction");
+      datastoreAction.unbind();
+      var modal = $(this);
+      if (action === "add") {
+        modal.find('.modal-title').text("Add a user");
+        modal.find('#name').val("");
+        modal.find('#email').val("");
+        datastoreAction.click(function () {
+          create($("#name").val(), $("#email").val());
+          $('#datastoreModal').modal('toggle');
+        });
+      } else if (action === "edit") {
+        modal.find('.modal-title').text("Edit a user");
+        modal.find('#name').val(button.data("name"));
+        modal.find('#email').val(button.data("email"));
+        datastoreAction.click(function () {
+          update(id, $("#name").val(), $("#email").val());
+          $('#datastoreModal').modal('toggle');
+        });
+      }
+    });
+  }
+</script>
+<div class="modal fade" id="datastoreModal" tabindex="-1" role="dialog">
+  <div class="modal-dialog" role="dialog">
+    <div class="modal-content">
+      <div class="modal-header">
+        <button type="button" class="close" data-dismiss="modal">
+          <span>&times;</span>
+        </button>
+        <h4 class="modal-title" id="datastoreModalTitle">Add a user</h4>
+      </div>
+      <div class="modal-body">
+        <form>
+          <div class="form-group">
+            <label for="name" class="control-label">Name:</label>
+            <input type="text" class="form-control" id="name">
+          </div>
+          <div class="form-group">
+            <label for="email" class="control-label">Email:</label>
+            <input type="text" class="form-control" id="email">
+          </div>
+        </form>
+      </div>
+      <div class="modal-footer">
+        <button type="button" class="btn btn-default" data-dismiss="modal">
+          Cancel
+        </button>
+        <button type="button" id="datastoreAction" class="btn btn-primary">
+          Save
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+</body>
+</html>
diff --git a/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserControllerTest.java b/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserControllerTest.java
new file mode 100644
index 00000000000..5be8925b2f8
--- /dev/null
+++ b/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserControllerTest.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import com.google.gson.Gson;
+
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import spark.Spark;
+import spark.utils.IOUtils;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class UserControllerTest {
+
+  private static final String USER_NAME = "myName";
+  private static final String USER_EMAIL = "my@email.com";
+  private static String userId;
+
+  @BeforeClass
+  public static void beforeClass() {
+    Main.main(null);
+    Spark.awaitInitialization();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    User[] allUsers = getAllUsers();
+    for (User user : allUsers) {
+      deleteUser(user.getId());
+    }
+    userId = createUser(USER_NAME, USER_EMAIL).getId();
+  }
+
+  @AfterClass
+  public static void afterClass() {
+    Spark.stop();
+  }
+
+  @Test
+  public void testGetAllUsers() throws IOException {
+    User[] users = getAllUsers();
+    assertEquals(1, users.length);
+    User user = users[0];
+    assertEquals(userId, user.getId());
+    assertEquals(USER_NAME, user.getName());
+    assertEquals(USER_EMAIL, user.getEmail());
+  }
+
+  @Test
+  public void testCreateUser() throws IOException {
+    User user = createUser(USER_NAME, USER_EMAIL);
+    assertNotNull(user.getId());
+    assertEquals(USER_NAME, user.getName());
+    assertEquals(USER_EMAIL, user.getEmail());
+  }
+
+  @Test
+  public void testCreateUserInvalidRequest() {
+    try {
+      executeRequest("POST", "/api/users?name=&email=");
+      fail("Should fail due to an invalid request.");
+    } catch (IOException e) {
+      assertTrue(e.getMessage().startsWith("Server returned HTTP response code: 400 for URL"));
+    }
+  }
+
+  @Test
+  public void testDeleteUser() throws IOException {
+    assertEquals("\"ok\"", deleteUser(userId));
+    assertEquals(0, getAllUsers().length);
+  }
+
+  @Test
+  public void updateUser() throws IOException {
+    String newName = "myNewName";
+    String newEmail = "mynew@email.com";
+    String responseStr = executeRequest(
+        "PUT",
+        "/api/users/" + userId + "?id=" + userId + "&name=" + newName + "&email=" + newEmail);
+    User updatedUser = new Gson().fromJson(responseStr, User.class);
+    assertEquals(userId, updatedUser.getId());
+    assertEquals(newName, updatedUser.getName());
+    assertEquals(newEmail, updatedUser.getEmail());
+  }
+
+  private static String executeRequest(String method, String path) throws IOException {
+    URL url = new URL("http://localhost:8080" + path);
+    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+    connection.setRequestMethod(method);
+    connection.setDoOutput(true);
+    connection.connect();
+    return IOUtils.toString(connection.getInputStream());
+  }
+
+  private static User createUser(String name, String email) throws IOException {
+    return new Gson().fromJson(
+        executeRequest("POST", "/api/users?name=" + name + "&email=" + email), User.class);
+  }
+
+  private static String deleteUser(String id) throws IOException {
+    return executeRequest("DELETE", "/api/users/" + id);
+  }
+
+  private static User[] getAllUsers() throws IOException {
+    return new Gson().fromJson(executeRequest("GET", "/api/users"), User[].class);
+  }
+}
diff --git a/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserServiceTest.java b/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserServiceTest.java
new file mode 100644
index 00000000000..375c2dfdf9e
--- /dev/null
+++ b/managedvms/sparkjava/src/test/java/com/google/appengine/sparkdemo/UserServiceTest.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2015 Google Inc. All Rights Reserved.
+ *
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.google.appengine.sparkdemo;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.fail;
+
+import com.google.common.collect.Iterators;
+import com.google.gcloud.datastore.Datastore;
+import com.google.gcloud.datastore.DatastoreOptions;
+import com.google.gcloud.datastore.Entity;
+import com.google.gcloud.datastore.Key;
+import com.google.gcloud.datastore.Query;
+import com.google.gcloud.datastore.QueryResults;
+import com.google.gcloud.datastore.StructuredQuery;
+import com.google.gcloud.datastore.testing.LocalGcdHelper;
+
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.util.List;
+
+public class UserServiceTest {
+
+  private static final int PORT = LocalGcdHelper.findAvailablePort(LocalGcdHelper.DEFAULT_PORT);
+  private static final String PROJECT_ID = LocalGcdHelper.DEFAULT_PROJECT_ID;
+  private static final String USER_ID = "myId";
+  private static final String USER_NAME = "myName";
+  private static final String USER_EMAIL = "my@email.com";
+  private static final User USER = new User(USER_ID, USER_NAME, USER_EMAIL);
+  private static final Key USER_KEY = Key.builder(PROJECT_ID, "DEMO_USER", USER_ID).build();
+  private static final Entity USER_RECORD = Entity.builder(USER_KEY)
+      .set("id", USER_ID)
+      .set("name", USER_NAME)
+      .set("email", USER_EMAIL)
+      .build();
+  private static LocalGcdHelper gcdHelper;
+  private static Datastore datastore;
+  private static UserService userService;
+
+  @BeforeClass
+  public static void beforeClass() throws IOException, InterruptedException {
+    if (!LocalGcdHelper.isActive(PROJECT_ID, PORT)) {
+      gcdHelper = LocalGcdHelper.start(PROJECT_ID, PORT);
+    }
+    datastore = DatastoreOptions.builder()
+        .projectId(PROJECT_ID)
+        .host("http://localhost:" + PORT)
+        .build()
+        .service();
+    userService = new UserService(datastore);
+  }
+
+  @Before
+  public void setUp() {
+    StructuredQuery<Key> query = Query.keyQueryBuilder().build();
+    QueryResults<Key> result = datastore.run(query);
+    datastore.delete(Iterators.toArray(result, Key.class));
+    datastore.add(USER_RECORD);
+  }
+
+  @AfterClass
+  public static void afterClass() throws IOException, InterruptedException {
+    if (gcdHelper != null) {
+      gcdHelper.stop();
+    }
+  }
+
+  @Test
+  public void testGetAllUsers() {
+    List<User> allUsers = userService.getAllUsers();
+    assertEquals(1, allUsers.size());
+    User actualUser = allUsers.get(0);
+    assertEquals(USER.getId(), actualUser.getId());
+    assertEquals(USER.getName(), actualUser.getName());
+    assertEquals(USER.getEmail(), actualUser.getEmail());
+  }
+
+  @Test
+  public void testCreateUser() {
+    String name = "myNewName";
+    String email = "mynew@email.com";
+    User actualUser = userService.createUser(name, email);
+    assertEquals(name, actualUser.getName());
+    assertEquals(email, actualUser.getEmail());
+    assertNotNull(actualUser.getId());
+    try {
+      userService.createUser(null, email);
+      fail("Expected to fail because name is null.");
+    } catch (IllegalArgumentException e) {
+      assertEquals("Parameter 'name' cannot be empty", e.getMessage());
+    }
+    try {
+      userService.createUser(name, null);
+      fail("Expected to fail because email is null.");
+    } catch (IllegalArgumentException e) {
+      assertEquals("Parameter 'email' cannot be empty", e.getMessage());
+    }
+  }
+
+  @Test
+  public void testDeleteUser() {
+    String result = userService.deleteUser(USER_ID);
+    assertEquals("ok", result);
+    assertNull(datastore.get(USER_KEY));
+  }
+
+  @Test
+  public void testUpdateUser() {
+    String newName = "myNewName";
+    String newEmail = "mynew@email.com";
+    User updatedUser = userService.updateUser(USER_ID, newName, newEmail);
+    assertEquals(USER_ID, updatedUser.getId());
+    assertEquals(newName, updatedUser.getName());
+    assertEquals(newEmail, updatedUser.getEmail());
+    try {
+      userService.updateUser(USER_ID, null, USER_EMAIL);
+      fail("Expected to fail because name is null.");
+    } catch (IllegalArgumentException e) {
+      assertEquals("Parameter 'name' cannot be empty", e.getMessage());
+    }
+    try {
+      userService.updateUser(USER_ID, USER_NAME, null);
+      fail("Expected to fail because email is null.");
+    } catch (IllegalArgumentException e) {
+      assertEquals("Parameter 'email' cannot be empty", e.getMessage());
+    }
+  }
+}
diff --git a/pom.xml b/pom.xml
index 551c70afea7..421f19cf143 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,6 +32,7 @@
         <module>storage/storage-transfer</module>
         <module>monitoring</module>
         <module>logging</module>
+        <module>managedvms/sparkjava</module>
     </modules>
 
     <build>