I thought it should be fairly easy. Download the zip file, unzip it, put lib\ and activemq-all-5.5.0.jar in classpath, and make sure java in PATH, I got everything covered.
But when I try to start activemq, I got an error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
Dear God, this drives me crazy, I could not figure it out anything that I did wrong to cause this, tried all the options that I could think of, finally I gave up, I told myself, what about try some other version, let's say, apache-activemq-5.4.2-bin.zip.
Guess what, it is working!
