If you are reading this you already have the code.
For the sake of completeness here are the full instructions.
Ensure suitable versions of Java and Ant are available. On EAO systems with a recent Ant but bad Java, this might require: setenv JAVA_HOME /local/java/jdk1.8 setenv PATH $JAVA_HOME/bin:$PATH rehash
Check out the code git clone https://github.com/eaobservatory/observing-tool.git jacot
change to the code directory ... cd jacot
Ant (ant.apache.org) is the preferred method of building ... ant
In Hilo ...
cd /jac_sw
git clone git://github.com/eaobservatory/observing-tool.git otrelease
where
Change to the code directory ...
cd otrelease
Checkout the release code ... git checkout -b release origin/release
Ant (ant.apache.org) is the preferred method of building ... ant jar
Copy the JAR file to the release directory ... cp jcmtot.jar /ftp/pub/ot/
Update the OMP server's configuration file parameter "ot-cur-version" to match this version.
Also update the "ot-min-version" parameter if older versions can no longer be used.