Generated classes implementing Serializable do not include serialVersionUUID

Summary really says it all, this creates a needless warning in Eclipse, for example in:

package org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.tunnel.p2p.rev130819.tunnel.p2p.path.attributes;
import org.opendaylight.yangtools.yang.binding.Identifier;

/**
**/
public class ExplicitHopsKey
implements Identifier<ExplicitHops> {
...