activemq Failed!

Just try activemq. First running found error!

Error message is:

java.io.IOException: Transport Connector could not be registered in JMX: Illegal character in hostname at index 14: tcp://firstname_lastname:61616

Check and found error from ‘Illegal character in hostname’. Because RFC 2396 (URI spec) define no use “_” (underscore).So the problem from my computer’s name is contain "_" (underscore).

Just rename my computer’s name, run again, and work for now!