Cmis-server-archetype is a project mainly written in Java, it's free.
Maven Archetype to quickstart a CMIS server project
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This archetype provides the developer environment to build a CMIS Server.
In order to try it, first build it and deploy it in your local Maven repo
mvn clean install
Next, generate a new Maven project from the archetype
mvn archetype:generate -DarchetypeArtifactId=my-cmis-server-archetype -DarchetypeGroupId=org.apache.chemistry.opencmis.server -DarchetypeVersion=0.1.0-incubating-SNAPSHOT
Last, run your OpenCMIS Server
cd ${artifactId} mvn jetty:run
For any other information, please refer to the following page
http://incubator.apache.org/chemistry/how-to-build-a-server.html