At server shutdown, cleanly close the Office connection before it is interrupted

At server shutdown, org.nuxeo.ecm.platform.convert.ooomanager.OOoManagerComponent.deactivate(ComponentContext) is called after the connection is interrupted.
Because of that, the org.artofsolving.jodconverter.office.PooledOfficeManager.connectionEventListener.new OfficeConnectionEventListener()

.disconnected(OfficeConnectionEvent) detects the interruption and tries to reopen it:
19:10:35,234 WARN [PooledOfficeManager] connection lost unexpectedly; attempting restart

org.artofsolving.jodconverter.office.PooledOfficeManager.stop() should be called by OOoManagerComponent.deactivate() before the connection is lost; in order to properly close the connection, avoid the warning message and the attempt to restart.