In CE 2.0, how do I update and recompile my service for a new service pack release?

In your service, locate and edit the pom.xml inside of the war directory structure:

|-myservice
|---pom.xml
|---myservice-ear
|-----pom.xml
|---myservice-svar
|-----pom.xml
|---myservice-war
|-----pom.xml <- This pom file

Update Collaboration API artifact dependency with new CE version. For example, if you are updating from CE 2.0 SP1 to CE 2.0 SP2 then update the version tag from 2.0.1.0.201011 to 2.0.2.0.202003. The artifactId remains the same as we are dealing with 2.0 version.

<dependency>
<groupId>com.avaya.collaboration.api</groupId>
<artifactId>avaya-aura-collaboration-api-2.0</artifactId>
<version>2.0.2.0.202003</version>
<scope>provided</scope>
</dependency>

After updating pom.xml, save the file and rebuilt the project using Maven.