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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.protocols.tom;

import org.jgroups.Address;
import org.jgroups.util.Bits;
import org.jgroups.util.Streamable;
import org.jgroups.util.Util;

import java.io.*;


/**
 * The represents an unique identifier for the messages processed by the Total Order Anycast protocol
 * 
 * Note: it is similar to the ViewId (address + counter)
 *
 * @author Pedro Ruivo
 * @since 3.1
 */
public class MessageID implements Externalizable, Comparable, Cloneable, Streamable {
    private static final long serialVersionUID = 878801547232534461L;
    private Address address = null;
    private long id = -1;

    public MessageID() {}

    public MessageID(Address address, long id) {
        this.address = address;
        this.id = id;
    }

    @Override
    public int compareTo(MessageID other) {
        if (other == null) {
            throw new NullPointerException();
        }

        return id == other.id ? this.address.compareTo(other.address) :
                id < other.id ? -1 : 1;
    }


    public Address getAddress() {
        return address;
    }

    @Override
    public String toString() {
        return "MessageID{" + address + ":" + id + "}";
    }

    public Object clone() {
        try {
            MessageID dolly = (MessageID) super.clone();
            dolly.address = address;
            return dolly;
        } catch (CloneNotSupportedException e) {
            throw new IllegalStateException();
        }
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        MessageID messageID = (MessageID) o;

        return id == messageID.id &&
                !(address != null ? !address.equals(messageID.address) : messageID.address != null);

    }

    @Override
    public int hashCode() {
        int result = address != null ? address.hashCode() : 0;
        result = 31 * result + (int) (id ^ (id >>> 32));
        return result;
    }

    public int serializedSize() {
        return Bits.size(id) + Util.size(address);
    }

    @Override
    public void writeTo(DataOutput out) throws Exception {
        Util.writeAddress(address, out);
        Bits.writeLong(id, out);
    }

    @Override
    public void readFrom(DataInput in) throws Exception {
        address = Util.readAddress(in);
        id = Bits.readLong(in);
    }

    @Override
    public void writeExternal(ObjectOutput objectOutput) throws IOException {
        try {
            writeTo(objectOutput);
        } catch (Exception e) {
            throw new IOException(e);
        }
    }

    @Override
    public void readExternal(ObjectInput objectInput) throws IOException, ClassNotFoundException {
        try {
            readFrom(objectInput);
        } catch (Exception e) {
            throw new IOException(e);
        }
    }
}