Multithreaded server only outputs to one connection at a time

[sbeitzel]

Steps to reproduce:

1. launch dumbster, e.g.: [swbeitze@daystar ~]$ java -jar src/github/dumbster/build/dumbster.jar 8989
2. open a telnet session to the local dumbster: [swbeitze@daystar ~]$ telnet localhost 8989
3. observe the connect sequence:

   Trying ::1...
   Connected to localhost.
   Escape character is '^]'.
   220 localhost Dumbster SMTP service ready

4. in another terminal, open a second telnet to dumbster
5. observe that the connect sequence in the second telnet stops with telnet's printing of the escape character
6. quit the first telnet session
7. the second telnet session now prints the dumbster greeting

[rjo1970]

Yikes! Great find. I'll be reviewing your pull request today.

Has this been addressed after 3 years?

[antrix190]

Has this been addressed after 7 years?