DefaultSftpClient hangs on call to mkdir

    @Test
    public void testClient() throws Exception {
        final String hostname = "localhost";
        final int port = 22;
        final String username = "myuser";
        final String password = "mypass";

        SshClient client = SshClient.setUpDefaultClient();
        client.start();
        ClientSession session = client.connect( hostname, port ).await().getSession();
        session.authPassword( username, password ).await();

        deleteRecursive( new File( "target/sftp" ) );
        new File( "target/sftp" ).mkdirs();
        new File( "target/sftp/client/test.txt" ).delete();
        new File( "target/sftp/client" ).delete();

        SftpClient sftp = session.createSftpClient();

        sftp.mkdir( "target/sftp/client" );
    }

2013-11-28 20:31:47,489 | INFO | main | SecurityUtils | org.apache.sshd.common.util.SecurityUtils 80 | BouncyCastle not registered, using the default JCE provider
2013-11-28 20:31:47,859 | INFO | pool-2-thread-1 | ClientSessionImpl | org.apache.sshd.client.session.ClientSessionImpl 86 | Session created...
2013-11-28 20:31:48,063 | INFO | pool-2-thread-4 | ClientSessionImpl | org.apache.sshd.client.session.ClientSessionImpl 515 | Server version string: SSH-2.0-OpenSSH_6.2
2013-11-28 20:31:48,150 | INFO | pool-2-thread-5 | ClientSessionImpl | org.apache.sshd.client.session.ClientSessionImpl 329 | Received SSH_MSG_KEXINIT
2013-11-28 20:31:48,172 | INFO | pool-2-thread-5 | DHG1 | org.apache.sshd.client.kex.AbstractDHGClient 78 | Send SSH_MSG_KEXDH_INIT
2013-11-28 20:31:48,181 | INFO | pool-2-thread-3 | DHG1 | org.apache.sshd.client.kex.AbstractDHGClient 93 | Received SSH_MSG_KEXDH_REPLY
2013-11-28 20:31:48,195 | WARN | pool-2-thread-3 | AcceptAllServerKeyVerifier | org.apache.sshd.client.keyverifier.AcceptAllServerKeyVerifier 45 | Server at localhost/127.0.0.1:22 presented unverified key:
2013-11-28 20:31:48,196 | INFO | pool-2-thread-3 | ClientSessionImpl | org.apache.sshd.client.session.ClientSessionImpl 349 | Received SSH_MSG_NEWKEYS
2013-11-28 20:31:48,201 | INFO | pool-2-thread-3 | ClientSessionImpl | org.apache.sshd.client.session.ClientSessionImpl 548 | Send SSH_MSG_SERVICE_REQUEST for ssh-userauth
2013-11-28 20:31:48,204 | INFO | main | UserAuthPassword | org.apache.sshd.client.auth.UserAuthPassword 48 | Send SSH_MSG_USERAUTH_REQUEST for password
2013-11-28 20:31:48,218 | INFO | pool-2-thread-1 | UserAuthPassword | org.apache.sshd.client.auth.UserAuthPassword 59 | Received SSH_MSG_USERAUTH_SUCCESS
2013-11-28 20:31:48,247 | INFO | main | ChannelSubsystem | org.apache.sshd.client.channel.AbstractClientChannel 186 | Send SSH_MSG_CHANNEL_OPEN on channel 101
2013-11-28 20:31:48,250 | INFO | pool-2-thread-3 | ChannelSubsystem | org.apache.sshd.client.channel.ChannelSubsystem 43 | Send SSH_MSG_CHANNEL_REQUEST exec
2013-11-28 20:31:48,499 | INFO | pool-2-thread-2 | ChannelSubsystem | org.apache.sshd.client.channel.AbstractClientChannel 254 | Received SSH_MSG_CHANNEL_REQUEST on channel 101

HANGS HERE...