Better practices

package org.opendaylight.neutron.transcriber;

class : public abstract class AbstractNeutronInterface

1. This can be made final --> private DataBroker db;
2. Class can have a header comment

public class Activator implements BundleActivator

1. can be made final --> private ProviderContext providerContext;
2. As a general practice local variables can be made final

public class NeutronFloatingIPInterface extends

1. can be made final --> private ConcurrentMap<String, NeutronFloatingIP> floatingIPDB = new ConcurrentHashMap<String, NeutronFloatingI
2. unused variable --> NeutronSubnet subnet = subnetCRUD.getSubnet(networkCRUD.getNetwork(floatIP.getFloatingNetworkUUID()).getSubnets().get(0));

public class NeutronLoadBalancerInterface extends

1. can be made final --> private ConcurrentMap<String, eutronLoadBalancer> loadBalancerDB

similar conventions can be verified in other classes