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-TODO
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+### Steps to create an overlay project
+1. Create a directory for the top level: `mkdir example-openid-connect-overlay`
+2. Create `example-openid-connect-overlay/pom.xml`
+
+        <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/maven-v4_0_0.xsd">
+          <modelVersion>4.0.0</modelVersion>  
+          <groupId>org.example</groupId>  
+          <artifactId>example-openid-connect-overlay</artifactId>
+          <packaging>pom</packaging>
+          <version>1.0-SNAPSHOT</version>
+          <name>example-openid-connect-overlay</name>
+          <modules>
+            <module>OpenID-Connect-Java-Spring-Server</module>
+            <module>my-openid-connect</module>
+          </modules>
+          <dependencies>
+            <dependency>
+              <groupId>org.mitre</groupId>
+              <artifactId>openid-connect-server</artifactId>
+              <type>war</type>
+              <version>0.1-SNAPSHOT</version>
+            </dependency>
+          </dependencies>
+          <properties>
+            <java-version>1.6</java-version>
+            <org.springframework-version>3.1.1.RELEASE</org.springframework-version>
+            <org.slf4j-version>1.5.10</org.slf4j-version>
+            <spring.security.version>3.1.0.RELEASE</spring.security.version>
+          </properties>
+          <build>
+            <finalName>my-openid-connect-server</finalName>
+          </build>
+        </project>
+
+    This creates a project with two modules, one bing the `OpenID-Connect-Java-Spring-Server` (the original), and `my-openid-connect` which will hold our modifications we want to overlay. We also set some global properties (versions of Java, Spring, etc.) and the finalName of our project.
+
+3. Now clone the `OpenID-Connect-Java-Spring-Server` into the `example-openid-connect-overlay/` directory
+
+        cd example-openid-connect-overlay
+        git clone https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server.git
+        cd OpenID-Connect-Java-Spring-Server
+        git submodule update --init --recursive
+
+    You now have the current version of OpenID-Connect-Java-Spring-Server. You should make sure that the version in `example-openid-connect-overlay/OpenID-Connect-Java-Spring-Server/pom.xml` matches the dependency version for `openid-connect-server` located in `example-openid-connect-overlay/pom.xml`
+
+4. Create the my-openid-connect submodule
+
+    Create the directory `example-openid-connect-overlay/my-openid-connect` and cd into it
+
+5. Create `example-openid-connect-overlay/my-openid-connect/pom.xml`
+
+        <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>
+          <parent>
+            <artifactId>example-openid-connect-overlay</artifactId>
+            <groupId>org.example</groupId>
+            <version>1.0-SNAPSHOT</version>
+            <relativePath>..</relativePath>
+          </parent>
+          <artifactId>my-openid-connect</artifactId>
+          <packaging>war</packaging>
+          <build>
+          <plugins>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-compiler-plugin</artifactId>
+              <configuration>
+                 <source>${java-version}</source>
+                 <target>${java-version}</target>
+              </configuration>
+            </plugin>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-war-plugin</artifactId>
+              <version>2.1.1</version>
+              <configuration>
+                <overlays>
+                  <overlay>
+                    <groupId>org.mitre</groupId>
+                    <artifactId>openid-connect-server</artifactId>
+                  </overlay>
+                </overlays>
+              </configuration>
+            </plugin>
+          </plugins>
+          </build>
+            <properties>
+              <java-version>1.6</java-version>
+              <org.springframework-version>3.1.1.RELEASE</org.springframework-version>
+              <org.slf4j-version>1.5.10</org.slf4j-version>
+              <spring.security.version>3.1.0.RELEASE</spring.security.version>
+            </properties>
+            <dependencies>
+              <dependency>
+                <groupId>org.mitre</groupId>
+                <artifactId>openid-connect-server</artifactId>
+                <type>war</type>
+                <version>0.1-SNAPSHOT</version> 
+              </dependency>
+              <dependency>
+                <groupId>org.mitre</groupId>
+                <artifactId>openid-connect-common</artifactId>
+                <version>0.1-SNAPSHOT</version>
+              </dependency>
+            </dependencies>
+        </project>
+
+    At this point you should be able to do a `mvn package` from the `example-openid-connect-overlay` level and you'll get a .war file at `example-openid-connect-overlay/my-openid-connect/target/my-openid-connect-server.war`. Remember this name was set in the `example-openid-connect-overlay/pom.xml` as the `finalName`.
+
+6. Any files you create in the `my-openid-connect` maven project will be inserted into the resultant war file. If you use the same name as a file in `OpenID-Connect-Java-Spring-Server` project, such as `example-openid-connect-overlay/my-openid-connect/src/main/resources/META-INF/persistence.xml`, the version from the `my-openid-connect` project will be used in the .war file. This is good for setting up things like database connections. You may also create new Spring beans with new names (in `my-openid-connect/src/main/java/...`) that implement or override the standard openid-connect beans. If you mark these with the Spring Framework's `@Primary` annotation, Spring will use your class instead of the default classes. 
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