OH2 doesn't start at all

After installation of OH2, I ran it as below. But it was blocked.
My JVM environment is oracle jvm 1.8.0_121. OS is macOS with Sierra

[shkim@shkimMacBookPro:~/openhab/openhab-2.1.0-SNAPSHOT]$ sudo ./start.sh
Launching the openHAB runtime…

Even with start_debug.sh
[shkim@shkimMacBookPro:~/openhab/openhab-2.1.0-SNAPSHOT]$ sudo ./start_debug.sh
Launching the openHAB runtime…
Listening for transport dt_socket at address: 5005

There was no response and it was blocked.
If anyone has experienced the same issue, would you please share it to solve it.

Thank you in advance.