Issue 3:
when failed to run the virgo-web-server & see the error log as below
8080 can be the JMX port too (9875?) if virgo's crashed after it's shut down on 8080.
Solutions:
kills virgo if it's crashed.
#kill -9 `lsof -iTCP:8080 -Fp | perl -p -e "s/p//g"`
or,
#ps -A
get the processID for java (e.g:12345)
#kill -9 12345