diff -r 7d6f2526244a -r 197a85a35cba src/net/java/otr4j/io/messages/QueryMessage.java
--- a/src/net/java/otr4j/io/messages/QueryMessage.java	Sun Mar 15 17:28:04 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,56 +0,0 @@
-/*
- * otr4j, the open source java otr library.
- *
- * Distributable under LGPL license.
- * See terms of license at gnu.org.
- */
-package net.java.otr4j.io.messages;
-
-import java.util.List;
-
-/**
- * 
- * @author George Politis
- */
-public class QueryMessage extends AbstractMessage {
-	// Fields.
-	public List<Integer> versions;
-
-	// Ctor.
-	protected QueryMessage(int messageType, List<Integer> versions) {
-		super(messageType);
-		this.versions = versions;
-	}
-
-	public QueryMessage(List<Integer> versions) {
-		this(MESSAGE_QUERY, versions);
-	}
-
-	// Methods.
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-		int result = super.hashCode();
-		result = prime * result
-				+ ((versions == null) ? 0 : versions.hashCode());
-		return result;
-	}
-
-	@Override
-	public boolean equals(Object obj) {
-		if (this == obj)
-			return true;
-		if (!super.equals(obj))
-			return false;
-		if (getClass() != obj.getClass())
-			return false;
-		QueryMessage other = (QueryMessage) obj;
-		if (versions == null) {
-			if (other.versions != null)
-				return false;
-		} else if (!versions.equals(other.versions))
-			return false;
-		return true;
-	}
-
-}