Initialize the xmpp connection config in a background thread. On android > 3.x network operations on the main thread crash the application. This move the dns request made by the ConnectionConfiguration in another thread by lazily initializing the XMPPConnection

package net.java.otr4j.crypto;

import net.java.otr4j.OtrException;

@SuppressWarnings("serial")
public class OtrCryptoException extends OtrException {

	public OtrCryptoException(Exception e) {
		super(e);
	}

}