diff --git a/tools/java/data/README b/tools/java/data/README
new file mode 100644
index 000000000..099cbf71e
--- /dev/null
+++ b/tools/java/data/README
@@ -0,0 +1,15 @@
+How to install the Appengine SDK to the Maven local repository?
+Note that this needs to be done only once.
+  $ mvn gae:unpack
+  Note that you don't need to manually download any SDK.
+
+How to generate the WAR?
+Note that this must be done before running the webapp locally and before
+deploying it to Appengine.
+  $ mvn war:war
+
+How to run the webapp locally?
+  $ mvn gae:run
+
+How to deploy the webapp to Appengine?
+  $ mvn gae:update
diff --git a/tools/java/data/pom.xml b/tools/java/data/pom.xml
index 0334282a3..a643a65cb 100644
--- a/tools/java/data/pom.xml
+++ b/tools/java/data/pom.xml
@@ -12,6 +12,20 @@
   <version>1.0-SNAPSHOT</version>
   <name>Libphonenumber Data tools</name>
 
+  <properties>
+    <gae.version>1.5.4</gae.version>
+  </properties>
+
+  <repositories>
+    <repository>
+      <id>mvnrepository</id>
+      <url>http://mvnrepository.com/artifact/</url>
+      <snapshots>
+        <enabled>true</enabled>
+      </snapshots>
+    </repository>
+  </repositories>
+
   <dependencies>
     <dependency>
       <groupId>junit</groupId>
@@ -30,6 +44,20 @@
     <sourceDirectory>src</sourceDirectory>
     <testSourceDirectory>test</testSourceDirectory>
     <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.3.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>net.kindleit</groupId>
+        <artifactId>maven-gae-plugin</artifactId>
+        <version>0.9.1</version>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
diff --git a/tools/java/data/webapp/WEB-INF/appengine-web.xml b/tools/java/data/webapp/WEB-INF/appengine-web.xml
new file mode 100644
index 000000000..2f2175b53
--- /dev/null
+++ b/tools/java/data/webapp/WEB-INF/appengine-web.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
+  <application>libphonenumber-combine-geodata</application>
+  <version>1</version>
+  <system-properties>
+    <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/>
+  </system-properties>
+</appengine-web-app>
diff --git a/tools/java/data/webapp/WEB-INF/logging.properties b/tools/java/data/webapp/WEB-INF/logging.properties
new file mode 100644
index 000000000..0c2ea51bc
--- /dev/null
+++ b/tools/java/data/webapp/WEB-INF/logging.properties
@@ -0,0 +1,13 @@
+# A default java.util.logging configuration.
+# (All App Engine logging is through java.util.logging by default).
+#
+# To use this configuration, copy it into your application's WEB-INF
+# folder and add the following to your appengine-web.xml:
+#
+# <system-properties>
+#   <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/>
+# </system-properties>
+#
+
+# Set the default logging level for all loggers to WARNING
+.level = WARNING