Every time a new release of Hibernate comes out the build system has changed, and I spend half my day trying to figure out how to build the single-JAR distribution of Hibernate. It used to be just "mvn clean install", then it was "mvn assembly:assembly", and now, with 3.6, neither of those work. I have a number of patches (a few of them attached to unresolved JIRAs) that I need to include with the Hibernate JAR in my projects so each release I need to rebuild it and it's getting really frustrating. In fact, the "mvn assembly:assembly" command (that only worked with 3.5) I found in the forums: https://forum.hibernate.org/viewtopic.php?f=1&t=997648 . I can sort of understand tailoring build instructions (though outdated) to Hibernate developers and people who have release access to the jboss repository, but until I can get my patches accepted I have to rebuild this JAR. And I can't do that if the build system changes and nobody updates any docs.