$ mvn -Pide clean install

(...)
[INFO] --- maven-bundle-plugin:4.0.0:bundle (default-bundle) @ model ---
[ERROR] Bundle org.opendaylight.neutron:model:bundle:0.12.0-SNAPSHOT : Input file does not exist: /home/vorburger/dev/ODL/git/neutron/model/target-ide/classes/LICENSE
[ERROR] Bundle org.opendaylight.neutron:model:bundle:0.12.0-SNAPSHOT : The default package '.' is not permitted by the Import-Package syntax.
 This can be caused by compile errors in Eclipse because Eclipse creates
valid class files regardless of compile errors.
The following package(s) import from the default package [org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.constants.rev150712, org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.secgroups.rev150712, org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.types.rev160517, org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.fwaas.rev150712]
[ERROR] Error(s) found in bundle configuration
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24.440 s
[INFO] Finished at: 2018-09-17T11:43:46+02:00
[INFO] Final Memory: 61M/850M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.felix:maven-bundle-plugin:4.0.0:bundle (default-bundle) on project model: Error(s) found in bundle configuration -> [Help 1]