Add a MANIFEST.MF file in the MATA-INF directory, and the core Teiid API dependencies for resource adapter with the following line.

Dependencies: org.jboss.teiid.common-core,org.jboss.teiid.api,javax.api

If your resource adapter depends upon any other third party jar files, .dll or .so files they can be placed at the root of the rar file. If any of these libraries are already available as modules in JBoss AS, then you can add the module name to the above MANIFEST.MF.