A new release of the new jack-example-tools project is out.
This is version 2 which only contains bugfixes.

Changelog:

• Fix crashes in midi_latency_test
• Fix regression in alsa_in that broke resampling (reverted code to known good state)
• Fix usage help string in midiseq

Please note that the JACK2 project is only going to ship with similar tools (as in, have them built-in) for 1 more release.
See the original jack-example-tools announcement for details.