Caused by: javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
class com.sun.mail.smtp.SMTPAddressFailedException: 550 5.1.1 User unknown

at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1130)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:525)
at javax.mail.Transport.send0(Transport.java:151)
at javax.mail.Transport.send(Transport.java:80)
at alt.javax.mail.TransportImpl.send(TransportImpl.java:18)
at com.atlassian.mail.server.impl.SMTPMailServerImpl.send(SMTPMailServerImpl.java:168)
… 7 more
X connection to localhost:10.0 broken (explicit kill or server shutdown).

What a way to end a day that hasn’t been one of my better ones (more on that later, maybe).  Having got Tomcat back up and running, and slimmed down to just JIRA, I was hoping that the day was going to smooth out, at least for the last working hour.  Instead, I’ve been watching Tomcat just fall over at random, spitting out an error that the X connection went away.  There is nothing in the Tomcat configuration that requires X, so I can only guess that Java noticed that I had an environment variable set, and even though there was no X at the end of the DISPLAY, decided to use it anway.  My only hypothesis is that after some period of time, Java determined that the connection wasn’t there, and terminated Tomcat.

Wonderful.

unset DISPLAY && ./startup.sh