I'm trying to figure out how to develop a Java module and I'm struggling even after following the instructions provided in the documentation.

I have installed the LabKey 16.2 with Tomcat 8.0.38 on a Linux machine. The LabKey installation is in folder /usr/local/labkey. Both Tomcat and LabKey are up and running.

Separately from the LabKey installation described above, I downloaded a local copy of trunk to my home folder and created a new module by running 'ant create_module'. The module is called hellomod. I immediately compile with 'ant build' and then 'ant production' and then manually copy the generated hellomod.module into /usr/local/labkey/modules and restart Tomcat.

LabKey restarts correctly but shows an error message saying that the module "was not compiled in production mode".

I don't understand why I get this error if I'm doing exactly what is indicated in the documentation below.

https://www.labkey.org/home/Documentation/wiki-page.view?name=productionBuilds

Since the above fails then I tried another test by compiling module kiem from /trunk/server/customModules with 'ant build' and 'ant production'. After this I manually copied kiem.module from trunk/build/deploy/modules to /usr/local/labkey/modules and restarted Tomcat. Again I get the error saying that kiem "was not compiled in production mode".

Could someone please what I'm doing wrong and how I can successfully compile and deploy a Java module? Thanks.