diff -r 7d6f2526244a -r 197a85a35cba src/net/java/otr4j/io/messages/MysteriousT.java
--- a/src/net/java/otr4j/io/messages/MysteriousT.java	Sun Mar 15 17:28:04 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,82 +0,0 @@
-package net.java.otr4j.io.messages;
-
-import java.util.Arrays;
-
-import javax.crypto.interfaces.DHPublicKey;
-
-public class MysteriousT {
-	// Fields.
-	public int protocolVersion;
-	public int messageType;
-	public int flags;
-	public int senderKeyID;
-	public int recipientKeyID;
-	public DHPublicKey nextDH;
-	public byte[] ctr;
-	public byte[] encryptedMessage;
-
-	// Ctor.
-	public MysteriousT(int protocolVersion, int flags, int senderKeyID,
-			int recipientKeyID, DHPublicKey nextDH, byte[] ctr,
-			byte[] encryptedMessage) {
-
-		this.protocolVersion = protocolVersion;
-		this.messageType = AbstractEncodedMessage.MESSAGE_DATA;
-		this.flags = flags;
-		this.senderKeyID = senderKeyID;
-		this.recipientKeyID = recipientKeyID;
-		this.nextDH = nextDH;
-		this.ctr = ctr;
-		this.encryptedMessage = encryptedMessage;
-	}
-
-	// Methods.
-	@Override
-	public int hashCode() {
-		// TODO: Needs work.
-		final int prime = 31;
-		int result = 1;
-		result = prime * result + Arrays.hashCode(ctr);
-		result = prime * result + Arrays.hashCode(encryptedMessage);
-		result = prime * result + flags;
-		result = prime * result + messageType;
-		result = prime * result + ((nextDH == null) ? 0 : nextDH.hashCode());
-		result = prime * result + protocolVersion;
-		result = prime * result + recipientKeyID;
-		result = prime * result + senderKeyID;
-		return result;
-	}
-
-	@Override
-	public boolean equals(Object obj) {
-		// TODO: Needs work.
-		if (this == obj)
-			return true;
-		if (obj == null)
-			return false;
-		if (getClass() != obj.getClass())
-			return false;
-		MysteriousT other = (MysteriousT) obj;
-		if (!Arrays.equals(ctr, other.ctr))
-			return false;
-		if (!Arrays.equals(encryptedMessage, other.encryptedMessage))
-			return false;
-		if (flags != other.flags)
-			return false;
-		if (messageType != other.messageType)
-			return false;
-		if (nextDH == null) {
-			if (other.nextDH != null)
-				return false;
-		} else if (!nextDH.equals(other.nextDH))
-			return false;
-		if (protocolVersion != other.protocolVersion)
-			return false;
-		if (recipientKeyID != other.recipientKeyID)
-			return false;
-		if (senderKeyID != other.senderKeyID)
-			return false;
-		return true;
-	}
-
-}